02331nas a2200205 4500008004100000245010100041210006900142260000800211300001400219490000700233520161400240100001801854700001801872700002101890700002201911700002801933700002301961700002401984856011702008 2017 eng d00aDescription of Lysinibacillus telephonicus sp nov., isolated from the screen of a cellular phone0 aDescription of Lysinibacillus telephonicus sp nov isolated from  cJUL a2289-22950 v673 aA novel bacterial strain, designate dS5H2222(T), was isolated form the screen of a cellular phone. The cells were Gram-stainpositive, rod-shaped, aerobic and motile, and endospores are formed. S5H2222(T) grew as pale white colonies on trypticase soy agar and the best growth was observed at 37 degrees C (10- 55 degrees C) and at pH 7.0 (5.0-9.0). S5H2222(T) could tolerate up to 10% (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences placed this strain within the genus Lysinibacillus and it exhibited high 16S rRNA gene sequence similarity to Lysinibacillus halotolerans LAM612(T) (97.8 %), Lysinibacillus chungkukjangi2RL3-2(T) (97.4 %) and Lysinibacillus sinduriensis BLB-1(T) (97.2 %). TheDNA- DNA relatedness of the strain with L. halotolerans JCM 19611(T), L. chungkukjangi KACC 16626(T) and L. sinduriensis KACC 16611(T) was 57, 64 and 55% respectively. The genomic DNA G+C content was 39.8 mol%. The major fatty acids of S5H2222(T) were iso-C-15:0, anteiso-C-15:0, iso-C-16:0 and anteiso-C-17:0. MK-7 was the only menaquinone and the main polar lipids were diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine, four unidentified polar lipids were also present. The diagnostic amino acids in the cell wall peptidoglycan contained Lys-Asp (type A4 alpha). On the basis of the results of the phenotypic and genotypic characterizations, it was concluded that S5H2222(T) represents a novel species of the genus Lysinibacillus, for which the name Lysinibacillus telephonicus sp. nov. is proposed. The type strain is S5H2222(T) (=MCC 3065 T =KACC 18714(T)=LMG 29294(T)).1 aRahi, Praveen1 aKurli, Rashmi1 aKhairnar, Mitesh1 aJagtap, Shubhangi1 aPansare, Aabeejjeet, N.1 aDastager, Syed, G.1 aShouche, Yogesh, S. uhttps://library.ncl.res.in/content/description-lysinibacillus-telephonicus-sp-nov-isolated-screen-cellular-phone02073nas a2200193 4500008004100000245013600041210006900177260000800246300001400254490000700268520133100275100001801606700002201624700002301646700002701669700002401696700003001720856012901750 2017 eng d00aDomibacillus mangrovi sp nov and domibacillus epiphyticus sp nov., isolated from marine habitats of the central west coast of India0 aDomibacillus mangrovi sp nov and domibacillus epiphyticus sp nov cAUG a3063-30700 v673 aWhile studying culturable bacterial diversity in different marine habitats of the central west coast of India, two novel Gramstain-positive, strictly aerobic, motile, endospore-forming and rod-shaped bacterial strains designated as SAOS 44(T) and SAB 38(T) were isolated from mangrove sediment soil and the surface of a macroalga, respectively. The strains were taxonomically characterized by using a polyphasic approach and genomic methods. The phylogenetic analysis based on 16S rRNA gene sequencing placed the strains firmly in the genus Domibacillus and were most closely related to Domibacillus antri KCTC 33636(T). The predominant fatty acids were iso-C-15 : 0 and anteiso-C-15 : 0. The major polar lipids were diphosphatidylglycerol and phosphatidylglycerol in addition to an aminophosphoglycolipid. MK-6 was the only respiratory quinone. The range of values of digital DNA-DNA hybridization (19.2-24.9 %) and the ortho-average nucleotide identity (74.1-81.4 %) among strains SAOS 44(T), SAB 38(T) and other Domibacillus species clearly supports their status as a distinct and novel species for which the names Domibacillus mangrovi sp. nov. SAOS 44(T) (=DSM 100930(T)=KCTC 33820(T)=MTCC 12571(T)) and Domibacillus epiphyticus sp. nov. SAB 38(T) (=DSM 100929(T)= KCTC 33830(T)=MTCC 12575(T)) are proposed, respectively.1 aVerma, Ashish1 aOjha, Anup, Kumar1 aDastager, Syed, G.1 aNatarajan, Rameshkumar1 aMayilraj, Shanmugam1 aKrishnamurthi, Srinivasan uhttps://library.ncl.res.in/content/domibacillus-mangrovi-sp-nov-and-domibacillus-epiphyticus-sp-nov-isolated-marine-habitats00625nas a2200181 4500008004100000022001400041245008400055210006900139260000800208300000900216490000700225100002300232700001900255700003000274700001800304700001600322856010500338 2017 eng d a1466-502600aKocuria indica sp. nov., isolated from a sediment sample (vol 64, pg 869, 2014)0 aKocuria indica sp nov isolated from a sediment sample vol 64 pg  cMAY a16200 v671 aDastager, Syed, G.1 aTang, Shan-Kun1 aSrinivasan, Krishnamurthi1 aLee, Jae-Chan1 aLi, Wen-Jun uhttps://library.ncl.res.in/content/kocuria-indica-sp-nov-isolated-sediment-sample-vol-64-pg-869-201402274nas a2200169 4500008004100000245011600041210006900157260000800226300002300234490000600257520163200263100002001895700001601915700002301931700002201954856012801976 2017 eng d00aPhytase production by aspergillus niger NCIM 563 for a novel application to degrade organophosphorus pesticides0 aPhytase production by aspergillus niger NCIM 563 for a novel app cMAR aArticle Number: 660 v73 aThe production of phytase using Aspergillus niger NCIM 563 under submerged fermentation conditions was studied using protein rich chickpea flour as substrate. Employing a hybrid statistical media optimization strategy of Plackett-Burman and Box-Behnken experimental designs in shake-flasks gave an increased phytase activity from an initial 66 IU/mL in 216 h to 160 IU/mL in a reduced time of 132 h. Productivity, thus increased by 3.97 times from 7.3 to 29 IU/mL/day. Using the optimized media, the production was successfully scaled-up further and improved up to 164 IU/mL in 96 h by studies carried out employing 2 and 10-L fermenters. The enzyme supernatant was recovered using centrifugal separation of biomass and the stability of the produced phytase was tested for animal feed applications under gastric conditions. In vitro degradation studies of water soluble monocrotophos, methyl parathion and water insoluble chlorpyrifos, pesticides used extensively in agriculture was carried out. It was observed by HPLC analysis that phytase could degrade 72% of chlorpyrifos at pH 7.0, 35 degrees C. Comparable results were obtained with monocrotophos and methyl parathion. With chlorpyrifos at higher temperature 50 degrees C as much as 91% degradation could be obtained. The degradation of chlorpyrifos was further validated by spraying phytase on harvested green chilli ( Capsicum annuum L) under normal conditions of pH 7.0, 35 degrees C and the degradation products obtained analyzed by LCMS. Thus, the present study brings out a potentially novel application of phytase for biodegradation of organophosphorus pesticides.1 aShah, Parin, C.1 aKumar, Ravi1 aDastager, Syed, G.1 aKhire, Jayant, M. uhttps://library.ncl.res.in/content/phytase-production-aspergillus-niger-ncim-563-novel-application-degrade-organophosphorus02397nas a2200181 4500008004100000022001500041245012400056210006900180260000800249490000600257520171300263100002001976700002301996700002202019700002002041700002302061856013102084 2018 eng d a 2190-572X00aCharacterization of mineral phosphate solubilizing and plant growth promoting bacteria from termite soil of arid region0 aCharacterization of mineral phosphate solubilizing and plant gro cOCT0 v83 aFive highly efficient phosphate solubilizing bacteria, viz., Pantoea sp. A3, Pantoea sp. A34, Kosakonia sp. A37, Kosakonia sp. B7 and Bacillus sp. AH9 were isolated from termitorial soils of Sanjivani island of southern Maharashtra, India. These isolates were characterized and explored for phosphate solubilization and plant growth promotion. Among these, Bacillus sp. AH9 showed highest phosphate solubilization index (3.5) and solubilization efficiency (250%) on Pikovskaya agar. Interestingly, Pantoea sp. A34 displayed maximum mineral phosphate solubilization (1072.35mg/L) in liquid medium and during this period the pH dropped to 3.13. All five isolates had highest P solubilization at 48h after inoculation. During mineral phosphate solubilization, both gluconic acid and 2-keto gluconic acid were produced by Kosakonia and Bacillus isolates, while only 2-keto gluconic acid was detected in Pantoea isolates. Highest organic acid (39.07 +/- 0.04g/L) production was envisaged in Bacillus sp. AH9, while Pantoea sp. A34 produced the least amount (13.00 +/- 0.01g/L) of organic acid. Seed bacterization with Pantoea sp. A3 and Kosakonia sp. A37 resulted in 37% and 53% increase in root length of tomato seedlings, respectively, while Pantoea sp. A34 and Kosakonia sp. B7 had deleterious effects on root length as well as overall growth of the seedlings. To our knowledge, this is the first report of plant growth promoting potential of microorganisms isolated from termitorial soil of Sanjivani island, which is a drought-prone area. Therefore, such efficient growth promoting P solubilizers can offer an effective solution for sustainable agriculture in arid, dryland farming and drought-prone regions.1 aChakdar, Hillol1 aDastager, Syed, G.1 aKhire, Jayant, M.1 aRane, Digeshwar1 aDharne, Mahesh, S. uhttps://library.ncl.res.in/content/characterization-mineral-phosphate-solubilizing-and-plant-growth-promoting-bacteria-termite02644nas a2200289 4500008004100000022001400041245008600055210006900141260000800210300001400218490000700232520174800239653001901987653001302006653001702019653001702036100001802053700001802071700002802089700002102117700002202138700002102160700002302181700002102204700002402225856010502249 2018 eng d a1466-502600aMicrobacterium telephonicum sp nov., isolated from the screen of a cellular phone0 aMicrobacterium telephonicum sp nov isolated from the screen of a cAPR a1052-10580 v683 a

A cultivation-based study of the microbial diversity of cellular phone screens led to the isolation of a Gram-stain-positive, aerobic, rod-shaped and non-endospore-forming bacterium, designated S2T63(T), exhibiting phenotypic and genotypic characteristics unique to the type strains of closely related species. Phylogenetic analysis based on 16S rRNA gene sequences indicated that the strain is a member of Microbacterium, and most closely related to Microbacterium aurantiacum IFO 15234(T) and Microbacterium kitamiense Kitami C2(T). The DNA-DNA relatedness values of the strain S2T63(T) to M. aurantiacum KACC 20510(T), M. kitamiense KACC 20514(T) and Microbacterium laevaniformans KACC 14463(T) were 65% (+/- 4), 29.5% (+/- 3) and 55.9% (+/- 4), respectively. The genomic DNA G+C content was 71.8 mol%. The major fatty acids were anteiso C-15:0, iso-C-16 : 0, C-16 : 0 and anteiso-C-17 : 0. The main polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol and two unidentified polar lipids. The peptidoglycan contained the amino acids glycine, lysine, alanine and glutamic acid, with substantial amounts of hydroxy glutamic acid detected, which is characteristic of peptidoglycan type B1 alpha. The predominant menaquinones were MK-12 and MK-13. Rhamnose, fucose and galactose were the whole-cell sugars detected. The strain also showed biofilm production, estimated by using crystal violet assay. Based on the results of the phenotypic and genotypic characterizations, it was concluded that the new strain represents a novel species of the genus Microbacterium, for which the name Microbacterium telephonicum is proposed, with S2T63(T) (=MCC 2967 T = KACC 18715 T = LMG 29293(T)) as the type strain.

10aactinobacteria10abio-film10aMALDI-TOF MS10amobile phone1 aRahi, Praveen1 aKurli, Rashmi1 aPansare, Aabeejjeet, N.1 aKhairnar, Mitesh1 aJagtap, Shubhangi1 aPatel, Nisha, B.1 aDastager, Syed, G.1 aLawson, Paul, A.1 aShouche, Yogesh, S. uhttps://library.ncl.res.in/content/microbacterium-telephonicum-sp-nov-isolated-screen-cellular-phone02406nas a2200289 4500008004100000022001400041245015700055210006900212260000800281300000900289490000600298520137000304100002201674700002701696700001901723700001901742700003101761700003601792700001801828700002001846700002301866700002101889700003401910700001601944700003301960856012301993 2018 eng d a2045-232200aStreptomyces sp metabolite(s) promotes Bax mediated intrinsic apoptosis and autophagy involving inhibition of mTOR pathway in cervical cancer cell lines0 aStreptomyces sp metabolites promotes Bax mediated intrinsic apop cFEB a28100 v83 a

In cervical cancer, the association between HPV infection and dysregulation of phosphoinositide 3-kinase (PI3K)/protein kinase B (AKT)/mammalian target of rapamycin (mTOR) pathway (PI3K/AKT/mTOR pathway) places mTOR as an attractive therapeutic target. The failure of current treatment modalities in advanced stages of this cancer and drawbacks of already available mTOR inhibitors demand for novel drug candidates. In the present study we identified the presence of a mTOR inhibitor in an active fraction of the ethyl acetate extract of Streptomyces sp OA293. The metabolites(s) in the active fraction completely inhibited mTORC1 and thereby suppressed activation of both of its downstream targets, 4E-BP1 and P70S6k, in cervical cancer cells. In addition, it also stalled Akt activation via inhibition of mTORC2. The mechanism of mTOR inhibition detailed in our study overcomes significant drawbacks of well known mTOR inhibitors such as rapamycin and rapalogs. The active fraction induced autophagy and Bax mediated apoptosis suggesting that mTOR inhibition resulted in programmed cell death of cancer cells. The molecular weight determination of the components in active fraction confirmed the absence of any previously known natural mTOR inhibitor. This is the first report of complete mTOR complex inhibition by a product derived from microbial source.

1 aDan, Vipin, Mohan1 aMuralikrishnan, Balaji1 aSanawar, Rahul1 aVinodh, J., S.1 aBurkul, Bhushan, Bapusaheb1 aSrinivas, Kalanghad, Puthankala1 aLekshmi, Asha1 aPradeep, N., S.1 aDastager, Syed, G.1 aSanthakumari, B.1 aSanthoshkumar, Thankayyan, R.1 aKumar, Ajay1 aPillai, Madhavan, Radhakrish uhttps://library.ncl.res.in/content/streptomyces-sp-metabolites-promotes-bax-mediated-intrinsic-apoptosis-and-autophagy02891nas a2200241 4500008004100000022001400041245015700055210006900212260000800281300001000289490000800299520204400307653001902351653001902370653001402389653001802403653000902421653001702430100002502447700002302472700002302495856013102518 2019 eng d a0048-969700aBiodegradation of mixed polycyclic aromatic hydrocarbons by pure and mixed cultures of biosurfactant producing thermophilic and thermo-tolerant bacteria0 aBiodegradation of mixed polycyclic aromatic hydrocarbons by pure cAUG a52-600 v6793 a

Applicability of thermophilic and thereto-tolerant microorganisms for biodegradation of polycyclic aromatic hydrocarbons (PAHs) with low water solubility is an interesting strategy for improving the biodegradation efficiency. In this study, we evaluated utility of thermophilic and thermo-tolerant bacteria isolated from Unkeshwar hot spring (India) for biodegradation of four different PAHs. Water samples were enriched in mineral salt medium (MSM) containing a mixture of four PAHs compounds (anthracene: ANT, fluorene: FLU, phenanthrenc: PHE and pyrene: PYR) at 37 degrees C and 50 degrees C. After growth based screening, four potent strains obtained which were identified as Aeribacillus pallidus (UCPS2), Bacillus axarquiensis (UCPD1), Bacillus siamensis (GHP76) and Bacillus subtilis subsp. inaquosorum (U277) based on the 16S rRNA gene sequence analysis. Degradation of mixed PAH compounds was evaluated by pure as well as mixed cultures under shake flask conditions using MSM supplemented with 200 mg/L concentration of PAHs (50 mg/L of each compound) for 15 days at 37 degrees C and 50 degrees C. A relatively higher degradation of ANT (92% - 96%), FLU (83% - 86%), PHE (16% - 54%) and PYR (51% - 71%) was achieved at 50 degrees C by Aeribacillus sp. (UCPS2) and mixed culture. Furthermore, crude oil was used as a substrate to study the degradation of same PAHs using these organisms which also revealed with similar results with the higher degradation at 50 degrees C. Interestingly, PAH-degrading strains were also positive for biosurfactant production. Biosurfactants were identified as the variants of surfactins (lipopeptide biosurfactants) based on analytical tools and phylogenetic analysis of the surfactin genes. Overall, this study has shown that hot spring microbes may have a potential for PAHs degradation and also biosurfactant production at a higher temperature, which could provide a novel perspective for removal of PAHs residues from oil contaminated sites. (C) 2019 Elsevier B.V. All rights reserved.

10aBiodegradation10aBiosurfactants10aCrude oil10aMixed culture10aPAHs10aThermophiles1 aMehetre, Gajanan, T.1 aDastager, Syed, G.1 aDharne, Mahesh, S. uhttps://library.ncl.res.in/content/biodegradation-mixed-polycyclic-aromatic-hydrocarbons-pure-and-mixed-cultures-biosurfactant02500nas a2200265 4500008004100000022001400041245009200055210006900147260000900216300001200225490000800237520168300245653001801928653001601946653000801962653001201970653001301982653000801995100002402003700001602027700002302043700002302066700002902089856011602118 2019 eng d a0168-170200aDevelopment and evaluation of taxon-specific primers for the selected Caudovirales taxa0 aDevelopment and evaluation of taxonspecific primers for the sele cAPR  a184-1880 v2633 a

The phage taxonomy is primarily based on the morphology derived from Transmission Electron Microscopic (TEM) studies. TEM based characterization is authentic and accepted by scientific community. However, TEM based identification is expensive and time consuming. After the phage isolation, before analysis TEM, a DNA based rapid method could be introduced. The DNA based method could dramatically reduce the number of samples analyzed by TEM and thereby increase the speed and reduce the cost of identification. In the present work, four environmental phage isolates were identified based on TEM studies and genome size. The identification of these four phages was validated using DNA based method. The taxon-specific DNA markers were identified through multiple sequence alignments. The primers were designed at conserved genes (DNA polymerase or integrase) of 4 different phage taxa viz. family Ackermannviridae, genus Jerseyvirus, genus T4virus, and genus P22virus. These primers were evaluated using both in vitro and in silico approach for the amplification of the target taxons. Majority of the primer sets were found to amplify member species of the targeted taxa in vitro. In In silico analysis, six primer sets intended for identification of family Ackermannviridae showed positive amplification of >= 86.7% classified species. Further, the primers targeting the genus Jerseyvirus and T4virus showed the amplification of 53.8% and >= 84.6% species, respectively. The present work is a case study performed to explore the possibility of use of taxon-specific primers for identification and taxonomic studies of newly isolated phages to supplement the TEM.

10aBacteriophage10aDNA markers10aPcr10aPrimers10aTaxonomy10aTEM1 aNewase, Sandeep, K.1 aGupta, Alka1 aDastager, Syed, G.1 aKapadnis, Balu, P.1 aShashidhar, Ravindranath uhttps://library.ncl.res.in/content/development-and-evaluation-taxon-specific-primers-selected-caudovirales-taxa02393nas a2200205 4500008004100000020002200041245009600063210006900159260002400228300001200252520162000264100002801884700002001912700003201932700002801964700002001992700002902012700002302041856012302064 2019 eng d a978-981-13-8315-100aDistribution and bioprospecting potential of actinobacteria from Indian mangrove ecosystems0 aDistribution and bioprospecting potential of actinobacteria from bSpringer, Singapore a319-3533 aActinobacteria are the ecologically and economically important prokaryotes with the unprecedented ability to produce novel metabolites. They are widely distributed in nature due to their physiological and metabolic versatility. Actinobacteria from marine ecosystem are recognized as a promising source for novel bioactive metabolites. Notably, mangroves are the most fertile and productive marine ecosystem due to their ecophysiological conditions and vast microbial diversity. At the global level, there are many novel actinobacteria which have been reported from mangrove ecosystems and also explored for their bioprospecting potential. However, in India, microbiologists have explored actinobacteria from selected mangrove ecosystems for the past five decades with special reference to culturable diversity and antimicrobial, antimycobacterial, anticancer, and enzymatic activities. So far, around 22 rare actinobacterial genera have been reported from the Indian mangrove ecosystems. However, several other novel actinobacteria with promising bioprospecting potential are yet to be explored. Hence, research on actinobacteria in the Indian mangrove ecosystem is still in its infancy. This chapter will describe the exploratory research work carried out on the importance, diversity, antimicrobial and enzymatic activity, biodegradation, and nanotechnological potency of actinobacteria from the Indian mangrove ecosystems. This chapter will enable researchers to identify the gaps to be bridged for further research on Indian mangrove actinobacteria and exploit their potential to the maximum benefit to mankind.1 aManikkam, Radhakrishnan1 aPati, Premalata1 aThangavel, Shanmugasundaram1 aVenugopal, Gopikrishnan1 aJoseph, Jerrine1 aRamasamy, Balagurunathan1 aDastager, Syed, G. uhttps://library.ncl.res.in/content/distribution-and-bioprospecting-potential-actinobacteria-indian-mangrove-ecosystems03154nas a2200289 4500008004100000022001400041245016500055210006900220260000800289300001200297490000800309520217000317653002002487653001102507653001702518653002402535653001102559100001902570700001602589700002302605700002102628700001802649700002302667700002302690700002202713856012902735 2019 eng d a0048-969700aMetagenomic insights to understand transient influence of Yamuna River on taxonomic and functional aspects of bacterial and archaeal communities of River Ganges0 aMetagenomic insights to understand transient influence of Yamuna cJUL a288-2990 v6743 a

River confluences are interesting ecosystems to investigate for their microbial community structure and functional potentials. River Ganges is one of the most important and holy river of India with great mythological history and religious significance. The Yamuna River meets Ganges at the Prayagraj (formerly known as Allahabad), India to form a unique confluence. The influence of Yamuna River on taxonomic and functional aspects of microbiome at this confluence and its downstream, remains unexplored. To unveil this dearth, whole metagenome sequencing of the microbial (bacterial and archaeal) community from the sediment samples of December 2017 sampling expedition was executed using high throughput MinION technology. Results revealed differences in the relative abundance of bacterial and archaeal communities across the confluence. Grouped by the confluence, a higher abundance of Proteobacteria and lower abundance of Bacteroidetes and Firnacutes was observed for Yamuna River (G15Y) and at immediate downstream of confluence of Ganges (G15DS), as compared to the upstream, confluence, and farther downstream of confluence. A similar trend was observed for archaeal communities with a higher abundance of Euryarchaeoto in G15Y and G15DS, indicating Yamuna River's influence. Functional gene(s) analysis revealed the influence of Yamuna River on xenobiotic degradation, resistance to toxic compounds, and antibiotic resistance interceded by the autochthonous microbes at the confluence and succeeding downstream locations. Overall, similar taxonomic and functional profiles of microbial communities before confluence (upstream of Ganges) and farther downstream of confluence, suggested a transient influence of Yamuna River. Our study is significant since it may be foundational basis to understand impact of Yamuna River and also rare event of mass bathing on the microbiome of River Ganges. Further investigation would be required to understand, the underlying cause behind the restoration of microbial profiles post-confluence farther zone, to unravel the rejuvenation aspects of this unique ecosystem. (C) 2019 Elsevier B.A. All rights reserved.

10aConfluence zone10aGanges10aMetagenomics10aTransient influence10aYamuna1 aSamson, Rachel1 aShah, Manan1 aYadav, Rakeshkumar1 aSarode, Priyanka1 aRajput, Vinay1 aDastager, Syed, G.1 aDharne, Mahesh, S.1 aKhairnar, Krishna uhttps://library.ncl.res.in/content/metagenomic-insights-understand-transient-influence-yamuna-river-taxonomic-and-functional00722nas a2200205 4500008004100000022001400041245009200055210006900147260000800216300000900224490000700233100002500240700001700265700002400282700002400306700001800330700003000348700002300378856011500401 2019 eng d a1466-502600aMicrobacterium enclense sp. nov., isolated from sediment sample (vol 65, pg 2064, 2015)0 aMicrobacterium enclense sp nov isolated from sediment sample vol cMAY a15280 v691 aMawlankar, Rahul, R.1 aMual, Poonam1 aSonalkar, Vidya, V.1 aThorat, Meghana, N.1 aVerma, Ashish1 aSrinivasan, Krishnamurthi1 aDastager, Syed, G. uhttps://library.ncl.res.in/content/microbacterium-enclense-sp-nov-isolated-sediment-sample-vol-65-pg-2064-201502236nas a2200265 4500008004100000022001400041245009600055210006900151260000800220300001600228490000800244520137200252653001901624653001901643653001701662653002101679653001601700100001401716700002201730700002301752700002401775700002501799700002301824856012301847 2019 eng d a0304-389400aNovel fatty alkene from marine bacteria: a thermo stable biosurfactant and its applications0 aNovel fatty alkene from marine bacteria a thermo stable biosurfa cDEC aUNSP 1208680 v3803 a

In this study, a novel thermo stable biosurfactants, 1-Pentanonacontene (C95H190) a fatty alkene and 3-Hydroxy16-methylheptadecanoic acid (C18H36O3) were isolated from a marine isolate SGD-AC-13. Biosurfactants were produced using 1% yeast extract in tap water as production medium at 24 h in flask and 12 h in bioreactor. Using 16S rRNA gene sequence (1515 bp) and BCL card (bioMerieux VITEK (R)), strain was identified as Bacillus sp. Crude biosurfactant reduced the surface tension of distilled water to 31.32 +/- 0.93 mN/m with CMC value of 0.3 mg/ml. Cell free supernatant showed excellent emulsification and oil displacement activity with stability up to 160 degrees C, pH 6-12 and 50 g/L NaCl conc. Biosurfactants were characterized using FTIR, TLC, HPLC LC-MS and NMR spectroscopy. Cell free supernatant reduced the contact angle of distilled water droplet from 117 degrees to 52.28 degrees and of 2% pesticide from 78.77 degrees to 73.42 degrees while 750 mu g/ml of crude biosurfactant reduced from 66.06 degrees to 56.33 degrees for 2% pesticide and recovered 35% ULO and 12% HWCO from the contaminated sand. To our best of knowledge, this is the first report of thermo stable fatty alkene as a biosurfactant and is structurally different from previously reported, with having potential application in agriculture, oil recovery and bioremediation.

10aBioremediation10aBiosurfactants10aFatty alkene10aThermo stability10aWettability1 aRam, Hari1 aSahu, Amit, Kumar1 aSaid, Madhukar, S.1 aBanpurkar, Arun, G.1 aGajbhiye, Jayant, M.1 aDastager, Syed, G. uhttps://library.ncl.res.in/content/novel-fatty-alkene-marine-bacteria-thermo-stable-biosurfactant-and-its-applications02495nas a2200205 4500008004100000022001400041245006600055210006400121260000800185300000800193490000700201520190500208653001002113653001402123653001502137653001502152100001402167700002302181856008502204 2019 eng d a1139-670900aRe-purposing is needed for beneficial bugs, not for the drugs0 aRepurposing is needed for beneficial bugs not for the drugs cMAR a1-60 v223 a

Between 150 and 200 species of plants, insects, birds or mammals go extinct every day. We do not have any idea what the global extinction rate for microorganisms is. What is clear is that we have already lost a maximum number of the microbes that used to live in and on our skins. Many of our microbial partners are facing extinction as we apply selection pressures that are unprecedented in our long-standing relationships. Recent estimates are that we have lost at least one third of the diversity of our skin microbiome. Every day, most of us bath or shower in water that contains chlorine or fluorine; these additives do a great job of killing pathogenic microbes, but they are probably not helping our skin microbiome. Most of the people apply cosmetic products every day, as these products contain preservatives that prevent microbial growth on the shelf. These same chemicals may well kill microbes on the skin. The daily use of high-pH soaps probably will not help microbial life that is adapted to living on the skin's natural pH of 5. The rise in the rate of C-section births from around 5% in 1970 to more than 30% today is likely to be a contributing factor. Vaginal microbes seed our skins at birth and C-sections disrupt this process. The overuse of broad-spectrum antibiotics has contributed to the loss of our microbial partners in all body sites and the skin is no exception. It is now clear that skin is an ecosystem that is dependent on commensal microbes for optimal health. In general, a diverse ecosystem is a healthy ecosystem that is robust in the face of change. Low-diversity ecosystems are more fragile and susceptible to dysbiosis. Eczema and acne rates have increased rapidly over the last 50 years. These diseases are almost unknown in hunter-gatherer communities. Now, we face two exciting challenges: finding out which species matter and how to get them back.

10aDrugs10aDysbiosis10aMicrobiome10aProbiotics1 aRam, Hari1 aDastager, Syed, G. uhttps://library.ncl.res.in/content/re-purposing-needed-beneficial-bugs-not-drugs02972nas a2200337 4500008004100000022001400041245022400055210006900279260000800348300001200356490000700368520179200375653001302167653001302180653003002193653001602223653001702239653001902256100001802275700001402293700002202307700001902329700001702348700002002365700002002385700002302405700002402428700002802452700003002480856012402510 2019 eng d a0723-202000aTaxonomic insights into the phylogeny of Bacillus badius and proposal for its reclassification to the genus Pseudobacillus as Pseudobacillus badius comb. nov. and reclassification of Bacillus wudalianchiensis Liu et al.0 aTaxonomic insights into the phylogeny of Bacillus badius and pro cMAY a360-3720 v423 a

The species Bacillus badius is one of the oldest members of the genus Bacillus isolated from faeces of children and was classified based on its ability to form endospores [8]. In 16S rRNA gene sequence and phylogenetic analysis, Bacillus badius DSM 23(T) shared low similarity (93.0%) and distant relationship with B. subtilis, the type species of the genus Bacillus indicating that it does not belong to this genus. Additional strains of the species, B. badius DSM 5610, DSM 30822 and B. encimensis SGD-V-25 (which has been recently reclassified as a member of this species) were included in the study to consider intraspecies diversity. Detailed molecular phylogenetic and comparative genome analysis clearly showed that the strains of B. badius were consistently retrieved outside the cluster of Bacillus sensu stricto and also distantly related to the genera Domibacillus and Quasibacillus. Further, the data from biochemical reactions (inability to ferment most carbohydrates), polar lipids profile (presence of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine and an aminophosphoglycolipid) and fatty acids supported the molecular analysis. Thus the four B. badius strains; DSM 23(T), DSM 5610, DSM 30822 and SGD-V-25 displayed sufficient demarcating phenotypic characteristics that warrant their classification as members of a novel genus and single species, for which the name Pseudobacillus badius gen. nov. comb. nov. is proposed with Pseudobacillus badius DSM 23(T) (= ATCC 14574(T)) as the type strain. Additionally, based on our findings from phenotypic, chemotaxonomic and genotypic parameters, Bacillus wudalianchiensis DSM 100757(T) was reclassified as Pseudobacillus wudalianchiensis comb. nov. (C) 2019 Elsevier GmbH. All rights reserved.

10a16S rRNA10aBacillus10aBacillus wudalianchiensis10aFatty acids10apolar lipids10aPseudobacillus1 aVerma, Ashish1 aPal, Yash1 aOjha, Anup, Kumar1 aKumari, Munesh1 aKhatri, Indu1 aRameshkumar, N.1 aSchumann, Peter1 aDastager, Syed, G.1 aMayilraj, Shanmugam1 aSubramanian, Srikrishna1 aKrishnamurthi, Srinivasan uhttps://library.ncl.res.in/content/taxonomic-insights-phylogeny-bacillus-badius-and-proposal-its-reclassification-genus02413nas a2200289 4500008004100000022001400041245010300055210006900158260000800227300001100235490000800246520145800254653001401712653002701726653002401753653001501777653001101792100002401803700002301827700002901850700002501879700002201904700002301926700001901949700002801968856012701996 2020 eng d a0882-401000aAntimicrobial profiling of coral reef and sponge associated bacteria from southeast coast of India0 aAntimicrobial profiling of coral reef and sponge associated bact cAPR a1039720 v1413 a

Culturable bacteria associated with marine sponges and coral mucus (collected from Gulf of Mannar and Palk Bay) were screened for their prospective antimicrobial compounds against 9 bacterial pathogens (Bacillus megaterium, B. cereus, Salmonella typhimurium, Staphylococcus aureus, Proteus vulgaris, Klebsillla pneumoniae, Escherichia coli, Pseudomonas aeruginosa and Acinetobacter baumannii) and a fungal pathogen (Candida albicans). Of the 263 bacterial isolates obtained during this study, 52 isolates displayed antimicrobial activity against one or more pathogens. 16S rRNA gene sequencing revealed that these 52 strains affiliated to 14 genera from three phyla Proteobacteria, Firmicutes and Actinobacteria. Sponge associated bacterial strains F-04, 1-23, 1-33 and G-03 inhibited the growth of all the bacterial pathogens tested in this study and significantly the former 2 strains inhibited the growth of fungal pathogen also. Majority of the potential strains (88.4% out of 52 strains) inhibited the growth of Bacillus cereus. Interestingly, an actinomycete strain F-04 (isolated from sponge Orina sagittaria) inhibited the growth of methicillin resistant Staphylococcus aureus. In total, 10 volatile organic compounds were determined from the ethyl acetate and hexane extract of the strain F-04 using GC-MS. Overall, marine bacteria isolated during this study demonstrate the potential for the development of broad spectrum antibiotics.

10aAnti-MRSA10aAntimicrobial activity10aBacterial diversity10aCoral reef10aSponge1 aRajasabapathy, Raju1 aGhadi, Sanjeev, C.1 aManikandan, Balakrishnan1 aMohandass, Chellandi1 aSurendran, Akhila1 aDastager, Syed, G.1 aMeena, Ram, M.1 aJames, Rathinam, Arthur uhttps://library.ncl.res.in/content/antimicrobial-profiling-coral-reef-and-sponge-associated-bacteria-southeast-coast-india02270nas a2200241 4500008004100000245007000041210006900111260000900180300001600189490000700205520148900212100002201701700002301723700002401746700001601770700002001786700002801806700002501834700002301859700002101882700002301903856010201926 2020 eng d00aApproach to nigericin derivatives and their therapeutic potential0 aApproach to nigericin derivatives and their therapeutic potentia cNOV  a43085-430910 v103 a

A new nigericin analogue that has been chemically modified was synthesized through a fluorination process from the parent nigericin, produced from a novel Streptomyces strain DASNCL-29. Fermentation strategies were designed for the optimised production of nigericin molecule and subjected for purification and structural analysis. The fermentation process resulted in the highest yield of nigericin (33% (w/w)). Initially, nigericin produced from the strain DASNCL-29 demonstrated polymorphism in its crystal structure, i.e., monoclinic and orthorhombic crystal lattices when crystallised with methanol and hexane, respectively. Furthermore, nigericin produced has been subjected to chemical modification by fluorination to enhance its efficacy. Two fluorinated analogues revealed that they possess a very potent antibacterial activity against Gram positive and Gram negative bacteria. To date, the nigericin molecule has not been reported for any reaction against Gram-negative bacteria, which are increasingly becoming resistant to antibiotics. For the first time, fluorinated analogues of nigericin have shown promising activity. In vitro cytotoxicity analysis of fluorinated analogues demonstrated tenfold lesser toxicity than the parent nigericin. This is the first type of study where the fluorinated analogues of nigericin showed very encouraging activity against Gram-negative organisms; moreover, they can be used as a candidate for treating many serious infections.

1 aSahu, Amit, Kumar1 aSaid, Madhukar, S.1 aHingamire, Tejashri1 aGaur, Megha1 aKhan, Abujunaid1 aShanmugam, Dhanasekaran1 aBarvkar, Vitthal, T.1 aDharne, Mahesh, S.1 aBharde, Atul, A.1 aDastager, Syed, G. uhttps://library.ncl.res.in/content/approach-nigericin-derivatives-and-their-therapeutic-potential02223nas a2200289 4500008004100000245012600041210006900167260000800236300000900244490000700253520117200260653001301432653001301445653002001458653002101478653002601499653002601525100003801551700004201589700002301631700002801654700002701682700002701709700003701736700003401773856012601807 2020 eng d00aBacterial biofilm formation using PCL/curcumin electrospun fibers and its potential use for biotechnological applications0 aBacterial biofilm formation using PCLcurcumin electrospun fibers cDEC a55560 v133 a

Electrospun nanofibers are used for many applications due to their large surface area, mechanical properties, and bioactivity. Bacterial biofilms are the cause of numerous problems in biomedical devices and in the food industry. On the other hand, these bacterial biofilms can produce interesting metabolites. Hence, the objective of this study is to evaluate the efficiency of poly (x190;- caprolactone)/Curcumin (PCL/CUR) nanofibers to promote bacterial biofilm formation. These scaffolds were characterized by scanning electron microscopy (SEM), which showed homogeneous fibers with diameters between 441-557 nm; thermogravimetric analysis and differential scanning calorimetry (TGA and DSC) demonstrated high temperature resilience with degradation temperatures over >350 degrees C; FTIR and H-1-NMR serve as evidence of CUR incorporation in the PCL fibers. PCL/CUR scaffolds successfully promoted the formation of Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa biofilms. These results will be valuable in the study of controlled harvesting of pathogenic biofilms as well as in metabolites production for biotechnological purposes.

10aBacteria10acurcumin10aelectrospinning10aEscherichia coli10aPseudomona aeruginosa10aStaphylococcus aureus1 aPompa-Monroy, Daniella, Alejandra1 aFigueroa-Marchant, Paulina, Guadalupe1 aDastager, Syed, G.1 aThorat, Meghana, Namdeo1 aIglesias, Ana, Leticia1 aMiranda-Soto, Valentin1 aPerez-Gonzalez, Graciela, Lizeth1 aVillarreal-Gomez, Luis, Jesus uhttps://library.ncl.res.in/content/bacterial-biofilm-formation-using-pclcurcumin-electrospun-fibers-and-its-potential-use05367nas a2200205 4500008004100000245017900041210006900220260000800289490000800297520456800305100001904873700001804892700001604910700002304926700002104949700002304970700002304993700002205016856012305038 2020 eng d00aDeciphering taxonomic and functional diversity of fungi as potential bioindicators within confluence stretch of Ganges and Yamuna Rivers, impacted by anthropogenic activities0 aDeciphering taxonomic and functional diversity of fungi as poten cAUG0 v2523 a

River confluences are interesting ecological niche with limited information in respect of the structure and the functions of diverse microbial communities. Fungi are gaining global attention as promising biological spectacles for defining the trophic status of riverine systems. We condense existing knowledge in confluence diversity in two Indian rivers (i.e. Ganges and Yamuna), by combining sediment metagenomics using long read aided MinION nanopore sequencing. A total of 63 OTU’s were observed, of which top 20 OTU’s were considered based on relative abundance of each OTU at a particular location. Fungal genera such as Aspergillus, PenicilliumKluveromyces, Lodderomyces, and Nakaseomyces were deciphered as potential bio indicators of river pollution and eutrophication in the confluent zone. In silico functional gene analysis uncovered hits for neurodegenerative diseases and xenobiotic degradation potential, supporting bioindication of river pollution in wake of anthropogenic intervention.

1 aSamson, Rachel1 aRajput, Vinay1 aShah, Manan1 aYadav, Rakeshkumar1 aSarode, Priyanka1 aDastager, Syed, G.1 aDharne, Mahesh, S.1 aKhairnar, Krishna uhttps://library.ncl.res.in/content/deciphering-taxonomic-and-functional-diversity-fungi-potential-bioindicators-within03393nas a2200397 4500008004100000245009600041210006900137260000800206300000800214490000700222520206400229653002002293653003202313653002902345653002002374653002002394100003102414700002302445700002402468700001902492700002302511700003102534700003702565700002502602700002702627700002302654700003202677700002002709700002502729700001802754700002602772700002002798700002102818700003402839856012202873 2020 eng d00aElectrospun fibers and sorbents as a possible basis for effective composite wound dressings0 aElectrospun fibers and sorbents as a possible basis for effectiv cAPR a4410 v113 a

Skin burns and ulcers are considered hard-to-heal wounds due to their high infection risk. For this reason, designing new options for wound dressings is a growing need. The objective of this work is to investigate the properties of poly (epsilon-caprolactone)/poly (vinyl-pyrrolidone) (PCL/PVP) microfibers produced via electrospinning along with sorbents loaded with Argovit (TM) silver nanoparticles (Ag-Si/Al2O3) as constituent components for composite wound dressings. The physicochemical properties of the fibers and sorbents were characterized using scanning electron microscopy (SEM), differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FTIR) and inductively coupled plasma optical emission spectroscopy (ICP-OES). The mechanical properties of the fibers were also evaluated. The results of this work showed that the tested fibrous scaffolds have melting temperatures suitable for wound dressings design (58-60 degrees C). In addition, they demonstrated to be stable even after seven days in physiological solution, showing no macroscopic damage due to PVP release at the microscopic scale. Pelletized sorbents with the higher particle size demonstrated to have the best water uptake capabilities. Both, fibers and sorbents showed antimicrobial activity against Gram-negative bacteria Pseudomona aeruginosa and Escherichia coli, Gram-positive Staphylococcus aureus and the fungus Candida albicans. The best physicochemical properties were obtained with a scaffold produced with a PCL/PVP ratio of 85:15, this polymeric scaffold demonstrated the most antimicrobial activity without affecting the cell viability of human fibroblast. Pelletized Ag/Si-Al2O3-3 sorbent possessed the best water uptake capability and the higher antimicrobial activity, over time between all the sorbents tested. The combination of PCL/PVP 85:15 microfibers with the chosen Ag/Si-Al2O3-3 sorbent will be used in the following work for creation of wound dressings possessing exudate retention, biocompatibility and antimicrobial activity.

10aelectrospinning10apoly (epsilon-caprolactone)10apoly (vinyl pyrrolidone)10asilver sorbents10awound dressings1 aAlvarez-Suarez, Alan, Saul1 aDastager, Syed, G.1 aBogdanchikova, Nina1 aGrande, Daniel1 aPestryakov, Alexey1 aGarcia-Ramos, Juan, Carlos1 aPerez-Gonzalez, Graciela, Lizeth1 aJuarez-Moreno, Karla1 aToledano-Magana, Yanis1 aSmolentseva, Elena1 aPaz-Gonzalez, Juan, Antonio1 aPopova, Tatiana1 aRachkovskaya, Lyubov1 aNimaev, Vadim1 aKotlyarova, Anastasia1 aKorolev, Maksim1 aLetyagin, Andrey1 aVillarreal-Gomez, Luis, Jesus uhttps://library.ncl.res.in/content/electrospun-fibers-and-sorbents-possible-basis-effective-composite-wound-dressings02478nas a2200157 4500008004100000245010500041210006900146260000800215300002400223490000600247520186600253100002502119700002302144700002302167856013002190 2020 eng d00aIsolation of potent alpha-glucosidase inhibitor from a novel marine bacterium Arthrobacter enclensis0 aIsolation of potent alphaglucosidase inhibitor from a novel mari cFEB aArticle number: 4740 v23 a

Alpha-glucosidases are involved in the hydrolyzation of glycosidic bond of di- or oligo-saccharides into mono-saccharides, thus help in the breakdown and absorption of sugars. Inhibition of alpha-glucosidases by inhibitors tend to slow break down and release of sugars into the bloodstream and can be used as therapeutic agents in the treatment of diabetes and obesity. In particular, some of the inhibitors are used in the treatment mainly acarbose, voglibose, and miglitol. In this study, we have reported the alpha-glucosidase inhibitory compound from a newly described marine bacterium Arthrobacter enclensis. The purified compound from A. enclensis was identified by HPLC, and further FTIR and tandem mass spectrometry (MS/MS) methods. The purified compound was annotated and identified by a Web tool CFM-ID (Competitive Fragmentation Modeling for Metabolite Identification). From analysis it was found that the compound showed high similarity with acarbose which is a C7N aminocyclitol compound. Further, we analyze the draft genome of A. enclensis using anti-SMASH. We observed that it matches the homology with biosynthetic gene cluster of acarviostatin and acarbose with 11% and 7% respectively. We demonstrated that, the purified compound from A. enclensis shows the inhibitory activity against alpha-glucosidase with an IC50 value of 500 ± 0.142 μg/ml as compared to standard acarbose, which showed an IC50 value of 200 ± 0.012 μg/ml. This result suggests that A. enclensis has a tendency to produce a C7N aminocyclitol like molecule which matched to acarbose and it uses different biosynthetic gene cluster for the synthesis of C7N aminocyclitol like molecule, which can be further used for the production and treatment purpose.

1 aMawlankar, Rahul, B.1 aDharne, Mahesh, S.1 aDastager, Syed, G. uhttps://library.ncl.res.in/content/isolation-potent-alpha-glucosidase-inhibitor-novel-marine-bacterium-arthrobacter-enclensis02408nas a2200253 4500008004100000022001400041245014400055210006900199260000800268300001200276490000700288520152200295100002201817700001901839700002001858700001901878700001801897700001601915700002601931700002501957700002301982700002502005856012402030 2020 eng d a1554-892900aMolecular networking and whole-genome analysis aid discovery of an angucycline that inactivates mTORC1/C2 and induces programmed cell death0 aMolecular networking and wholegenome analysis aid discovery of a cMAR a780-7880 v153 a

Rediscovery of known compounds and time consumed in identification, especially high molecular weight compounds with complex structure, have let down interest in drug discovery. In this study, whole-genome analysis of microbe and Global Natural Products Social (GNPS) molecular networking helped in initial understanding of possible compounds produced by the microbe. Genome data revealed 10 biosythethic gene clusters that encode for secondary metabolites with anticancer potential. NMR analysis of the pure compound revealed the presence of a four-ringed benz[a]anthracene, thus confirming angucycline; molecular networking further confirmed production of this class of compounds. The type II polyketide synthase gene identified in the microbial genome was matched with the urdamycin duster by BLAST analysis. This information led to ease in identification of urdamycin E and a novel natural derivative, urdamycin V, purified from Streptomyces sp. OA293. Urdamycin E (Urd E) induced apoptosis and autophagy in cancer cell lines. Urd E exerted anticancer action through inactivation of the mTOR complex by preventing phosphorylation at Ser 2448 and Ser 2481 of mTORC1 and mTORC2, respectively. Significant reduction in phosphorylation of the major downstream regulators of both mTORC1 (p70s6k and 4e-bp1) and mTORC2 (Akt) were observed, thus further confirming complete inhibition of the mTOR pathway. Urd E presents itself as a novel mTOR inhibitor that employs a novel mechanism in mTOR pathway inhibition.

1 aDan, Vipin, Mohan1 aVinodh, J., S.1 aSandesh, C., J.1 aSanawar, Rahul1 aLekshmi, Asha1 aKumar, Ajay1 aKumar, T., R. Santhos1 aMarelli, Uday, Kiran1 aDastager, Syed, G.1 aPillai, Radhakrishna uhttps://library.ncl.res.in/content/molecular-networking-and-whole-genome-analysis-aid-discovery-angucycline-inactivates01832nas a2200265 4500008004100000022001400041245013700055210006900192260000800261300001400269490000600283520090800289653001901197653001701216653002001233653002601253100002301279700002301302700002401325700002601349700002301375700002101398700002301419856012401442 2020 eng d a2193-580700aNew TBAF complex, highly stable, facile and selective source for nucleophilic fluorination: applications in batch and flow chemistry0 aNew TBAF complex highly stable facile and selective source for n cJUL a1022-10260 v93 a

Natural polysaccharides supported tetrabutylammonium fluoride (TBAF) complexes are prepared and found to be highly stable and selective fluoride source for well-renowned nucleophilic (SN2 type) fluorination reactions for the first time. Bacterial cellulose, plant cellulose, pectin, and starch derived TBAF complexes are synthesized, characterized (using SEM, TEM, and NMR techniques) and studied for their stability and reactivity. Heterogeneous bacterial cellulose-TBAF complex (NBu4(Bac-cell-OH)F) 1 was found to be highly stable and non-hygroscopic among all complexes, which gave high yields of fluorinated products in multi-gram scale in shorter reaction time. The primarily developed batch protocol was extended to solid-solid continuous flow reaction using an in-house built screw reactor, which furnished products in a few seconds of residence time (tR=20-25 sec) and excellent yields.

10aFlow synthesis10afluorination10agreen chemistry10aSustainable Chemistry1 aSaid, Madhukar, S.1 aKhonde, Nilesh, S.1 aThorat, Meghana, N.1 aAtapalkar, Ranjit, S.1 aKulkarni, Amol, A.1 aGajbhiye, Jayant1 aDastager, Syed, G. uhttps://library.ncl.res.in/content/new-tbaf-complex-highly-stable-facile-and-selective-source-nucleophilic-fluorination02503nas a2200265 4500008004100000022001400041245013300055210006900188260000800257300001200265490000700277520158600284653002501870653001301895653001601908653001101924653002201935653001401957653004001971100002002011700002002031700002302051700004002074856012302114 2020 eng d a1867-130600aPlant probiotic bacterial endophyte, alcaligenes faecalis, modulates plant growth and forskolin biosynthesis incoleus forskohlii0 aPlant probiotic bacterial endophyte alcaligenes faecalis modulat cJUN a481-4930 v123 a

Coleus forskohliiis an herb, well-known for its medicinal compound forskolin present in its roots, with wide range of pharmaceutical applications. Here, we report, for the first time, the role of plant-probiotic bacterial endophytes ofC. forskohlii, CFLB1 and CFRB1, isolated from leaf and root, which regulate plant growth andin plantforskolin content. Native bacterial endophyte, CFRB1 (Alcaligenes faecalis), significantly modulates primary plant productivity and forskolin content under pot and field conditions. Under field conditions, CFRB1 endophyte application significantly enhanced photosynthetic pigments and reduced the severity of root-knot and root rot diseases. Expression analyses of functional genes involved in the forskolin biosynthesis inC. forskohliiplants treated with CFRB1 endophyte under field conditions revealed differential upregulation of fourC. forskohliiditerpene synthases (CfTPSs),CfTPS1,CfTPS2,CfTPS3andCfTPS4, along with cytochrome P450 (CfCYP76AH15) and acyltransferase (CfACT1-8) genes. CFRB1 treatment reduced the severity of nematode infection and root rot inC. forskohliiplants by 81 and 78%, respectively. Overall, we demonstrate that cross-talk of plant-endophyte interaction inC. forskohliiis beneficial, leading to enhanced forskolin content through modulation of forskolin biosynthetic pathway genes along with increased plant yield and reduced disease incidence. Thus, endophytic isolate,A. faecalis(CFRB1), could be deployed as a novel bio-stimulant for enhancingin plantaforskolin content during cultivation ofC. forskohlii.

10aAlcaligenes faecalis10aCfACT1-810aCfCYP76AH1510aCfTPSs10aColeus forskohlii10aForskolin10aPlant-probiotic bacterial endophyte1 aMastan, Anthati1 aRane, Digeshwar1 aDastager, Syed, G.1 aBabu, Chikkarasanahalli, Shivegowda uhttps://library.ncl.res.in/content/plant-probiotic-bacterial-endophyte-alcaligenes-faecalis-modulates-plant-growth-and02297nas a2200229 4500008004100000022001400041245009200055210006900147260000800216300001600224490000700240520153400247100001401781700002201795700002601817700002401843700002301867700001901890700002301909700001501932856012001947 2020 eng d a0957-452200aStructural and electrical characterization studies for ternary composite of polypyrrole0 aStructural and electrical characterization studies for ternary c cNOV a18400-184110 v313 a

In this work, temperature dependence of alternate current (AC) and direct current (DC) conductivities of optimized polypyrrole/silver-tantalum oxide (PPy/Ag-Ta2O5), a ternary conducting polymer composite is comparatively studied with those of PPy and PPy/Ag. For the purpose, silver (Ag) nanoparticles were encapsulated with polypyrrole (PPy) by in situ oxidative polymerization to form core-shell structured PPy/Ag composite for which Ag nanoparticles were extracted from green tea. The PPy/Ag composite was then mechanically mixed with tantalum pentoxide (Ta2O5) to form PPy/Ag-Ta(2)O(5)ternary composite. Increase in depth of delocalization band of PPy in ternary composite as compared to those of PPy/Ag composite and PPy, indicating its increased AC conductivity confirmed from the comparative FTIR analyses. Interaction between PPy/Ag composite and Ta(2)O(5)in the ternary composite was confirmed from XRD studies. The formation of core-shell structured PPy/Ag composite and Ta(2)O(5)particles embedded in such PPy/Ag composite to form PPy/Ag-Ta(2)O(5)ternary composite confirmed from TEM and Raman studies. The frequency- and temperature-dependent electrical conductivity studies revealed increase in AC conductivity of the ternary composite as compared to those of PPy/Ag composite and pure PPy attributed mainly to interfacial effects. The charge transport in these samples predicted to be due to correlated barrier hopping of charges was confirmed by calculating their respective AC and DC activation energies.

1 aMegha, R.1 aRavikiran, Y., T.1 aKumari, S., C. Vijaya1 aPrakash, H., G. Raj1 aRevanasiddappa, M.1 aManjunatha, S.1 aDastager, Syed, G.1 aThomas, S. uhttps://library.ncl.res.in/content/structural-and-electrical-characterization-studies-ternary-composite-polypyrrole01410nas a2200241 4500008004100000022001400041245009500055210006900150260000800219520058000227653002700807653002500834653002000859100002300879700002000902700002200922700002000944700001800964700002300982700001901005700002101024856012301045 2020 eng d a1478-641900aTotal synthesis of (-)-2-methoxy-2-butenolide-3-cinnamate and its antimicrobial potentials0 aTotal synthesis of 2methoxy2butenolide3cinnamate and its antimic cJUL3 a

The first total synthesis of (-)-2-methoxy-2-butenolide-3-cinnamate (butenolide cinnamate) was achieved using commercially available starting material. The synthesized compound was found to have promising antibacterial activity against Gram-negative strainsEscherichia coli(ATCC 8739),Salmonella typhimurium(ATCC 23564) andPseudomonas aeruginosa(ATCC 19154) with a minimum inhibitory concentration of 2.0 mu g/mL, 1.0 mu g/mL and 2.0 mu g/mL, respectively. Notably, the compound was more potent against Gram-negative test strains than the Gram-positive test strains.

10aantibacterial activity10abutenolide cinnamate10aTotal synthesis1 aSaid, Madhukar, S.1 aUdavant, Rohini1 aSahu, Amit, Kumar1 aKhan, Abujunaid1 aNayak, Rashmi1 aDastager, Syed, G.1 aKumar, Pradeep1 aGajbhiye, Jayant uhttps://library.ncl.res.in/content/total-synthesis-2-methoxy-2-butenolide-3-cinnamate-and-its-antimicrobial-potentials01944nas a2200229 4500008004100000022001400041245013300055210006900188260000800257300000800265490000700273520115000280653001401430653001701444653002401461653001701485653002201502100002401524700001901548700002301567856012401590 2021 eng d a1022-976000aFabrication of bacterial nanocellulose/polyethyleneimine (PEI-BC) based cationic adsorbent for efficient removal of anionic dyes0 aFabrication of bacterial nanocellulosepolyethyleneimine PEIBC ba cSEP a3540 v283 aA bacterial cellulose (BC) based adsorbent was prepared by using polyethyleneimine (PEI) using epichlorohydrin as a cross-linker. The physicochemical characterization of the of the developed adsorbent was carried out using FTIR, BET analysis and SEM, respectively. The dye removal efficiency of the adsorbent was assessed towards two anionic model dyes viz. congo red (CR) and reactive red 120(RR). The kinetic data for the removal of both the anionic dyes were fitted better using pseudo-second-order model. Langmuir model describes well the process of adsorption with predicted maximum adsorption capacity (q(max)) 515.46 and 300.3 mg L-1 for CR (at pH 6.0) and RR (at pH 3.0) respectively. The adsorption-desorption study showed that PEI-BC adsorbent is effective with more than 90% dye removal efficiency even after four cycles. Furthermore, the bactericidal activity of the adsorbent was analysed using Escherichia coli and Staphylococcus aureus and adsorbent showed good inhibition against both test organisms. The study reveals that PEI-BC adsorbent can be a good candidate for water remediation purpose bearing multifunctional behaviour.10aadsorbent10aAnionic dyes10aBacterial cellulose10aBactericidal10aPolyethyleneimine1 aThorat, Meghana, N.1 aJagtap, Ashish1 aDastager, Syed, G. uhttps://library.ncl.res.in/content/fabrication-bacterial-nanocellulosepolyethyleneimine-pei-bc-based-cationic-adsorbent02221nas a2200253 4500008004100000022001400041245015000055210006900205260000800274300001100282490000800293520134100301653001901642653002201661653001501683653001401698653001401712653002301726100002001749700002001769700002301789700002301812856013201835 2021 eng d a0031-942200aMolecular insights of fungal endophyte co-inoculation with Trichoderma viride for the augmentation of forskolin biosynthesis in Coleus forskohlii0 aMolecular insights of fungal endophyte coinoculation with Tricho cAPR a1126540 v1843 a

To understand the compatibility of three native endophytic fungi Phialemoniopsis cornearis (SF1), Macrophomina pseudophaseolina (SF2) and Fusarium redolens (RF1) with Trichoderma viride (TV1) on Coleus forskohlii in enhancing plant growth and forskolin content, field experiments were conducted. Co-inoculation of RF1+TV1 showed significant improvement in plant growth (52%), root biomass (67%), and in planter forskolin content (94%), followed by treatment with SF2+TV1 and SF1+TV1. qRT-PCR was carried out to quantify expression of five key forskolin biosynthetic pathway genes (CfTPS2, CfTPS3, CfTPS4, CfCYP76AH15, and CfACT1-8) in RF1+TV1 treated C. forskohlii plants. Elevated expression of CfTPS2, CfTPS4, CfCYP76AH15 and CfACT1-8 genes was observed with RF1+TV1 combination as compared to uninoculated C. forskohlii plants. Besides, RF1+TV1 treatment considerably reduced the severity of nematode infection of C. forskohlii plants under field conditions. Thus, congruent properties of F. redolens (RF1) were witnessed with co-inoculation of T. viride (TV1) under field conditions which resulted in enhanced forskolin content, root biomass, and reduced nematode infections in C. forskohlii. Overall, this approach could be an economical and sustainable step towards cultivation of commercially important medicinal plants.

10aCo-inoculation10aColeus forskohlii10aendophytes10aForskolin10aLamiaceae10aTrichoderma viride1 aMastan, Anthati1 aRane, Digeshwar1 aDastager, Syed, G.1 aBabu, C., S. Vivek uhttps://library.ncl.res.in/content/molecular-insights-fungal-endophyte-co-inoculation-trichoderma-viride-augmentation-forskolin02228nas a2200217 4500008004100000022001400041245006500055210006200120260000800182300001400190490000800204520159000212653002101802653001101823653001301834653001201847100002201859700001401881700002301895856009201918 2021 eng d a0302-893300aPriestia veravalensis sp. nov., isolated from coastal sample0 aPriestia veravalensis sp nov isolated from coastal sample cOCT a4839-48450 v2033 aThe taxonomic position of two isolates, SGD-V-76(T) and SGD-M-37, isolated from sediment sample of Veraval coast, India, was examined using the polyphasic taxonomic approach. The morphological and chemotaxonomic characteristics of these two organisms are typical of the genus Priestia. The phylogenetic analyses performed using almost complete 16S rRNA gene sequences demonstrated that the isolate belongs to the Bacillaceae family, and forms a clade within the cluster containing Priestia flexus MTCC 2909(T), Priestia aryabhattai B8W22(T) and Priestia megaterium KCTC 3007(T) and both strains showed highest similarity of > 98% with 3-29 nucleotide differences. The cell wall contained meso-diaminopimelic acid as the diagnostic diamino acid. The predominant isoprenoid quinone was MK-7 and the G + C content of strains was 37.5-37.7 mol%. However, the DNA-DNA hybridization and the phenotypic characteristics revealed that, the strain SGD-V-76(T) and strain SGD-M-37 are similar species but different from any known Priestia species with ANI values of 79.2, 79.3 and 79.2 and the dDDH values of 17.7, 17.8 and 18.0% respectively. On the basis of phenotypic characteristics, phylogenetic analysis and the results of biochemical and physiological tests, and genomic data strain SGD-V-76(T) was clearly distinguished from closely related members of the Priestia genus. Based on the above data analysis strain SGD-V-76(T) (= DSM28242(T) = KCTC33802(T) = CIP111056(T) = NCIM5510(T)) represents a novel species of the genus Priestia, and we propose the name Priestia veravalensis sp. nov.10aCoastal sediment10agenome10aPriestia10aVeraval1 aWagh, Vasudev, S.1 aRam, Hari1 aDastager, Syed, G. uhttps://library.ncl.res.in/content/priestia-veravalensis-sp-nov-isolated-coastal-sample02131nas a2200265 4500008004100000022001400041245011800055210006900173260000800242300001000250490000800260520122700268653002501495653001701520653002101537653002701558653001601585653001001601100002501611700002301636700002501659700002301684700002701707856013101734 2021 eng d a0168-165600aRhizobacterial consortium mediated aroma and yield enhancement in basmati and non-basmati rice ( Oryza sativa L.)0 aRhizobacterial consortium mediated aroma and yield enhancement i cFEB a47-580 v3283 a

Basmati and non-basmati rice varieties are commercially important. Aromatic rice varieties are low yielding and recently depletion in aroma is observed due to the shift towards modern agriculture. Therefore, it is necessary to restore the aroma and increase the yield through sustainable agriculture. The use of microbial bioinoculants is one of the promising ways to achieve these targets. With these objectives, rhizospheric bacterial strains Enterobacter hormaechei (AM122) and Lysinibacillus xylanilyticus (DB25) having the property of synthesizing 2acetyl-1-pyrroline (2AP) were isolated from the rhizosphere of two aromatic rice varieties, Ambemohar-157 and Dehradun Basmati respectively and their effect on plant growth, aroma and yield enhancement under mono-inoculation and consortium conditions was analyzed. The bacterial inoculum in consortium resulted in significant improvement in vegetative growth, yield and 2AP content over mono inoculation and control. The study highlights the potential of E. hormaechei and L. xylanilyticus in plant growth, yield and aroma enhancement in basmati and non-basmati rice varieties. These strains can be taken up further for developing a commercial bioformulation.

10a2-Acetyl-1-pyrroline10aBasmati rice10aNon-basmati rice10aplant growth promotion10aRhizosphere10ayield1 aDhondge, Harshal, V.1 aPable, Anupama, A.1 aBarvkar, Vitthal, T.1 aDastager, Syed, G.1 aNadaf, Altafhusain, B. uhttps://library.ncl.res.in/content/rhizobacterial-consortium-mediated-aroma-and-yield-enhancement-basmati-and-non-basmati-rice02606nas a2200265 4500008004100000022001400041245016900055210006900224260000800293300001100301490000700312520164400319653000601963653002601969653001801995653003102013653002802044100002502072700002802097700002202125700002202147700001902169700002302188856012902211 2022 eng d a1018-364700a2,4-Di-tert-butylphenol (2,4-DTBP) purified from streptomyces sp. KCA1 from phyllanthus niruri: isolation, characterization, antibacterial and anticancer properties0 a24Ditertbutylphenol 24DTBP purified from streptomyces sp KCA1 fr cJUL a1020880 v343 a

Objectives: The present study reports the bioactivity of 2,4-Di-tert-butylphenol (2,4-DTBP) purified from an endophytic Streptomyces species KCA1 isolated from the leaves of Phyllanthus niruri and its antibacterial and anticancer properties. Methods: The extracellular metabolites were produced from the strain KCA1 by submerged fermentation using ethyl acetate. The crude extract was further evaluated for antibacterial activity against set of pathogens. Active metabolite from the extract was purified using chromatography techniques and detected its antibacterial activity by disc diffusion assay. The molecular structure of the active molecule was identified through various spectral study. Moreover, the bioactive metabolite 2,4-DTBP was analyzed antibacterial and anti-proliferative activity. Results: Strain KCA1 was identified as Streptomyces sp. In the preliminary screening, the crude extract exhibited broad spectrum activity against various bacterial pathogens. Based on the spectral properties, the active metabolite was identified as 2,4-Di-tert-butylphenol. The MIC of active compound 2,4-DTBP inhibited E. coli ATCC 25922 and S. aureus ATCC 29213 at 50 lg/ml and 0.78 lg/ml, respectively. The IC50 value of 2,4-DTBP was found to be 11.0 lg/ml and 116.8 lg/ml, against breast cancer cell line (MCF7) and normal VERO cell line, respectively. Conclusions: This study concluded that 2,4-DTBP, produced from the endophytic Streptomyces sp. KCA1, is the potential candidate to develop as promising antibacterial and anticancer agent. (C) 2022 The Authors. Published by Elsevier B.V. on behalf of King Saud University.

10a210a4-Di-tert-butylphenol10aAntibacterial10aantiproliferative activity10aEndophytic Streptomyces1 aSeenivasan, Ayswarya1 aManikkam, Radhakrishnan1 aKaari, Manigundan1 aSahu, Amit, Kumar1 aSaid, Madhukar1 aDastager, Syed, G. uhttps://library.ncl.res.in/content/24-di-tert-butylphenol-24-dtbp-purified-streptomyces-sp-kca1-phyllanthus-niruri-isolation01730nas a2200241 4500008004100000022001400041245011000055210006900165260000800234300001200242490000700254520094300261653000601204653000601210653002501216653001601241653001101257653002401268100002301292700002301315700002301338856012701361 2022 eng d a1139-670900aAntifungal compound from marine Serratia marcescens BKACT and its potential activity against Fusarium sp.0 aAntifungal compound from marine Serratia marcescens BKACT and it cNOV a851-8620 v253 a

Ecofriendly biocontrol agents to control pathogenic fungi are in demand globally. The present study evaluated the antifungal potentials of marine bacteria Serratia marcescens BKACT against eight different Fusarium species. A highest 75.5 +/- 0.80% of mycelial inhibition was observed against Fusarium foetens NCIM 1330. Structural characterization of the purified compound was analyzed by GC-MS and NMR techniques; based on the analysis, it is confirmed as 2, 4-di-tert butyl phenol (2, 4-DTBP) with chemical structure C14H22O. At 0.53 mM concentration, purified compound inhibited complete spore germination of F. foetens NCIM 1330. In vitro assay showed complete inhibition of F. foetens NCIM 1330 on the wheat seeds. Tested concentration does not show any toxic effect on germination of the seeds. By this study, we conclude that, 2, 4-DTBP is a suitable candidate to be used as biocontrol agent against Fusarium infection.

10a210a410adi-tert butyl phenol10aFusarium sp10amarine10aSerratia marcescens1 aKharat, Bharat, A.1 aSaid, Madhukar, S.1 aDastager, Syed, G. uhttps://library.ncl.res.in/content/antifungal-compound-marine-serratia-marcescens-bkact-and-its-potential-activity-against01648nas a2200205 4500008004100000022001400041245009900055210006900154260000800223300001400231490000700245520091000252100002901162700003001191700002201221700002301243700002401266700002201290856013001312 2022 eng d a0265-056800aArtificial intelligence in microbial natural product drug discovery: current and emerging role0 aArtificial intelligence in microbial natural product drug discov cDEC a2215-22300 v393 a

Covering: up to the end of 2022 Microorganisms are exceptional sources of a wide array of unique natural products and play a significant role in drug discovery. During the golden era, several life-saving antibiotics and anticancer agents were isolated from microbes; moreover, they are still widely used. However, difficulties in the isolation methods and repeated discoveries of the same molecules have caused a setback in the past. Artificial intelligence (AI) has had a profound impact on various research fields, and its application allows the effective performance of data analyses and predictions. With the advances in omics, it is possible to obtain a wealth of information for the identification, isolation, and target prediction of secondary metabolites. In this review, we discuss drug discovery based on natural products from microorganisms with the help of AI and machine learning.

1 aSahayaSheela, Vinodh, J.1 aLankadasari, Manendra, B.1 aDan, Vipin, Mohan1 aDastager, Syed, G.1 aPandian, Ganesh, N.1 aSugiyama, Hiroshi uhttps://library.ncl.res.in/content/artificial-intelligence-microbial-natural-product-drug-discovery-current-and-emerging-role01352nas a2200217 4500008004100000022001400041245013700055210006900192260000800261300001400269490000700283520056800290100002000858700002300878700002600901700002000927700002100947700002200968700002300990856012101013 2022 eng d a0163-386400aEnceleamycins A-C, furo-naphthoquinones from amycolatopsis sp. MCC0218: isolation, structure elucidation, and antimicrobial activity0 aEnceleamycins AC furonaphthoquinones from amycolatopsis sp MCC02 cMAY a1267-12730 v853 a

Three novel furo-naphthoquinones, enceleamycins A-C (1-3), and a new N-hydroxypyrazinone acid (4) were identified from the strain Amycolatopsis sp. MCC 0218, isolated from a soil sample collected from the Western Ghats of India. Their chemical structure and absolute and relative configurations were established by 1D and 2D NMR spectroscopy, single-crystal X-ray crystallography, and high-resolution mass spectrometry. Compounds 1 and 3 were active against methicillin-susceptible and -resistant Staphylococcus aureus with MIC values of 2-16 mu g/mL.

1 aKhan, Abujunaid1 aSaid, Madhukar, S.1 aBorade, Balasaheb, R.1 aGonnade, Rajesh1 aBarvkar, Vitthal1 aKontham, Ravindar1 aDastager, Syed, G. uhttps://library.ncl.res.in/content/enceleamycins-c-furo-naphthoquinones-amycolatopsis-sp-mcc0218-isolation-structure02726nas a2200277 4500008004100000022001400041245011000055210006900165260000800234300001100242490000800253520182900261653001502090653002402105653001502129653001702144653001602161653000902177100002102186700002502207700001702232700002302249700002302272700002702295856012602322 2022 eng d a0944-501300aExploring the core microbiota in scented rice (Oryza sativa L.) rhizosphere through metagenomics approach0 aExploring the core microbiota in scented rice Oryza sativa L rhi cOCT a1271570 v2633 a

Rice is a major food crop cultivated around the globe. Specially scented rice varieties are of commercial importance but they are low-yielding. The rhizospheric microflora plays a significant role in improving yield and aroma. However, the core microbiome of the scented rice rhizosphere is comparatively less explored. Here, we analyzed the core microbiome associated with the rhizosphere of the scented (Ambemohar-157 and Dehradun basmati) in comparison with non-scented rice (Kolam and Arize 6444 Gold) cultivated at two different geoclimatic zones of India (Maharashtra and Uttarakhand) using the metagenomics approach. The alpha and beta diversity analysis showed that the microbial communities associated with scented and non-scented varieties significantly changes with respect to richness, diversity, and evenness. The taxonomic profiling revealed the variation in composition, diversity, and abundance of the microbiome in terms of phyla and genera associated with scented rice varieties over non-scented. The cluster analysis distinguishes the microbial communities based on their geographical positions. The core microbiome analysis revealed that scented rice rhizosphere shelters distinct and unique microbiota. 28.6 % of genera were exclusively present only in the scented rice rhizosphere. The putative functional gene annotation revealed the high abundance of genes related to the biosynthesis of 2-acetyl-1-pyrroline (2AP) precursors in scented rice. The precursor feeding analysis revealed proline as a preferred substrate by 2AP synthesizing bacteria. The 2AP precursor proline and proline metabolism genes showed a positive correlation. The scented rice-specific rhizobacteria pointed out in this study can be used as bioinoculants for enhancing aroma, yield, and sustainable rice cultivation.

10aMetagenome10aMicrobial community10aMicrobiome10aOryza sativa10aRhizosphere10arice1 aDhondge, Harshal1 aBarvkar, Vitthal, T.1 aPaul, Dhiraj1 aDastager, Syed, G.1 aPable, Anupama, A.1 aNadaf, Altafhusain, B. uhttps://library.ncl.res.in/content/exploring-core-microbiota-scented-rice-oryza-sativa-l-rhizosphere-through-metagenomics02709nas a2200313 4500008004100000022001400041245011200055210006900167260000900236300001100245490000800256520169600264653001901960653001701979653001701996653002402013653001502037653001502052100002602067700001802093700002302111700002502134700001802159700001802177700002302195700002302218700002302241856013102264 2022 eng d a0048-969700aHigh throughput sequencing based direct detection of SARS-CoV-2 fragments in wastewater of Pune, West India0 aHigh throughput sequencing based direct detection of SARSCoV2 fr cFEB  a1510380 v8073 aGiven a large number of SARS-CoV-2 infected individuals, clinical detection has proved challenging. The wastewater-based epidemiological paradigm would cover the clinically escaped asymptomatic individuals owing to the faecal shedding of the virus. We hypothesised using wastewater as a valuable resource for analysing SARS-CoV-2 mutations circulating in the wastewater of Pune region (Maharashtra; India), one of the most affected during the covid-19 pandemic. We conducted study in open wastewater drains from December 2020- March 2021 to assess the presence of SARS-CoV-2 nucleic acid and further detect mutations using ARTIC protocol of MinION sequencing. The analysis revealed 108 mutations across six samples categorised into 39 types of mutations. We report the occurrence of mutations associated with Delta variant lineage in March-2021 samples, simultaneously also reported as a Variant of Concern (VoC) responsible for the rapid increase in infections. The study also revealed four mutations; S:N801, S:C480R, NSP14:C279F and NSP3:L550del not currently reported from wastewater or clinical data in India but reported worldwide. Further, a novel mutation NSP13:G206F mapping to NSP13 region was observed from wastewater. Notably, S:P1140del mutation was detected in December 2020 samples while it was reported in February 2021 from clinical data, indicating the instrumentality of wastewater data in early detection. This is the first study in India to demonstrate utility of sequencing in wastewater based epidemiology to identify mutations associated with SARS-CoV-2 virus fragments from wastewater as an early warning indicator system. (c) 2021 Elsevier B.V. All rights reserved.10aARTIC protocol10aEpidemiology10aMetagenomics10aNanopore sequencing10aSARS-CoV-210awastewater1 aDharmadhikari, Tanmay1 aRajput, Vinay1 aYadav, Rakeshkumar1 aBoargaonkar, Radhika1 aPatil, Dhawal1 aKale, Saurabh1 aKamble, Sanjay, P.1 aDastager, Syed, G.1 aDharne, Mahesh, S. uhttps://library.ncl.res.in/content/high-throughput-sequencing-based-direct-detection-sars-cov-2-fragments-wastewater-pune-west02616nas a2200265 4500008004100000022001400041245019700055210006900252260000800321300001100329490000700340520163800347653002401985653002302009653001802032653002302050653002202073100002002095700002302115700001402138700002202152700002302174700002302197856013002220 2022 eng d a2212-429200aInsights on biorational potential of Ocimum gratissimum essential oil and its binary combination with monoterpene phenol for control of rice weevil (Sitophilus oryzae) and aflatoxigenic fungi.0 aInsights on biorational potential of Ocimum gratissimum essentia cDEC a1020190 v503 a

Food grain storage is a difficult task due to insect infestation and subsequent mycotoxin contaminations which adversely affects the nutritional quality of grains and leading to economic loss. Current research focuses on contact and fumigant toxicity effects of essential oils (EO) and aroma compounds against Sitophilus oryzae and growth inhibition of aflatoxigenic fungi. The EO of Ocimum gratissimum comprised of thymol (46.8%), gamma-terpi-nene (14.04%) along with o-cymene (11.76%). Also, Cymbopogon flexuosus rich in citral (76.3%) and geraniol (84.6%) and Cymbopogon nardus having geraniol (49.24%) and geranyl acetate (20.9%) were all evaluated using a dose of 25 mu L (Conc-833.3 mu L/L air) against S. oryzae. All the compounds showed significant mortality (>95%) at 24 h of exposure. The insecticidal property of O. gratissimum oil chemotype showed a strong contact and fumigant toxicity against S. oryzae at a highest dose of 25 mu L (Conc-833.3 mu L/L air) within 24 h. It has been further evaluated on three aflatoxigenic fungal strains which showed reduction in growth and aflatoxin content (Aflatoxin B and G), which was markedly reduced upon the treatment. The binary mixture interaction of O. gratissimum oil with monoterpene phenol (carvacrol) was assessed and the specific binary mixture of 80:20 ratio (having additive property) acts as a contact insecticide with 100% mortality. Hence, essential oil of less explored Ocimum species (O. gratissimum) and its binary mixture could be deployed as potential biorational for control of rice weevil (Sitophilus oryzae) and aflatoxigenic Aspergillus spp.

10aAflatoxigenic fungi10aBinary combination10aEssential oil10aOcimum gratissimum10aSitophilus oryzae1 aRemesh, Archana1 aRaveendran, Ashika1 aBincy, K.1 aWagh, Vasudev, S.1 aDastager, Syed, G.1 aBabu, C., S. Vivek uhttps://library.ncl.res.in/content/insights-biorational-potential-ocimum-gratissimum-essential-oil-and-its-binary-combination01721nas a2200241 4500008004100000022001400041245013200055210006900187260000900256300001100265490000800276520090500284653000801189653001101197653002001208653001701228653001401245100002201259700002301281700002601304700002301330856012601353 2022 eng d a0144-861700aIsolation and structural characterization of exopolysaccharide from marine Bacillus sp. and its optimization by Microbioreactor0 aIsolation and structural characterization of exopolysaccharide f cJUN  a1192410 v2853 a

In the present study, a cost-effective, robust Microbioreactor based production optimization of levan like exopolysaccharide from marine Bacillus sp. SGD-03 was analysed. FE-SEM analysis has showed the significant fibrillar structure of EPS. Size exclusion chromatography and other analytical data revealed that, produced EPS has a molecular weight of 1.0 x 10(4) Da and is composed of fructose monosaccharide with hydroxyl, carbonyl, and ether groups. The backbone structure of EPS has a branching pattern of beta-(2,6) linkages which confirms the similarity with available levan like polymers. The cost-effective media composition for levan production was demonstrated. The maximum yield of crude levan obtained was 123.9 g/L by response surface methodology using robust BioLector Pro Microbioreactor, and same has been validated with shake flask, 1 L and 10 L pilot-scale fermentation.

10aEPS10amarine10aMicrobioreactor10aOptimization10astructure1 aWagh, Vasudev, S.1 aSaid, Madhukar, S.1 aBennale, Jagadish, S.1 aDastager, Syed, G. uhttps://library.ncl.res.in/content/isolation-and-structural-characterization-exopolysaccharide-marine-bacillus-sp-and-its01594nas a2200241 4500008004100000022001400041245005500055210005500110260000800165300001200173490000800185520088100193653001501074653002401089653003301113653002301146653001001169653002101179100002201200700002301222700002301245856008401268 2022 eng d a0378-109700aOverview of erythritol production by yeast strains0 aOverview of erythritol production by yeast strains cNOV afnac1070 v3693 a

Erythritol is a 4-carbon polyol produced with the aid of microbes in presence of hyper-osmotic stress. It is the most effective sugar alcohol that is produced predominantly by fermentation. In comparison to various polyols, it has many precise functions and is used as a flavor enhancer, sequestrant, humectant, nutritive sweetener, stabilizer, formulation aid, thickener, and a texturizer. Erythritol production is a common trait in a number of the yeast genera viz., Trigonopsis, Candida, Pichia, Moniliella, Yarrowia, Pseudozyma, Trichosporonoides, Aureobasidium, and Trichoderma. Extensive work has been carried out on the biological production of erythritol through Yarrowia, Moniliella, Candida, and other yeast strains, and numerous strategies used to improve erythritol productivity through mutagenesis and genetic engineering are discussed in this review.

10aErythritol10aerythrose reductase10ahyperosmotic stress response10ametabolic pathways10aYeast10ayeast expression1 aKhatape, Anil, B.1 aDastager, Syed, G.1 aRangaswamy, Vidhya uhttps://library.ncl.res.in/content/overview-erythritol-production-yeast-strains02733nas a2200349 4500008004100000022001400041245012900055210006900184260000800253300001400261490000800275520154800283653001901831653002001850653001301870653001801883653002601901100002801927700002201955700002801977700002202005700002202027700001902049700002702068700002202095700002902117700003802146700002302184700002702207700001802234856013102252 2023 eng d a0273-228900aAntibacterial and anti-HIV metabolites from marine streptomyces albus MAB56 isolated from Andaman and Nicobar Islands, India0 aAntibacterial and antiHIV metabolites from marine streptomyces a cDEC a7738-77540 v1953 a

Marine-derived actinobacteria have tremendous potential to produce novel metabolites with diverse biological activities. The Andaman coast of India has a lot of microbial diversity, but it is still a relatively unknown ecology for isolating novel actinobacteria with beneficial bioactive compounds. We have isolated 568 actinobacterial strains from mangrove rhizosphere sediments and sponge samples. Crude extracts from 75 distinct strains were produced by agar surface fermentation and extracted using ethyl acetate. In the disc diffusion method, 25 actinobacterial strains showed antimicrobial activity; notably, the strain MAB56 demonstrated promising broad-spectrum activity. Strain MAB56 was identified as Streptomyces albus by cultural, microscopic, and molecular methods. Conditions for bioactive metabolites from MAB56 were optimized and produced in a lab-scale fermenter. Three active metabolites (C1, C2, and C3) that showed promising broad-spectrum antimicrobial activity were isolated through HPLC-based purification. Based on the UV, FT-IR, NMR, and LC-MS analysis, the chemical nature of the active compounds was confirmed as 12-methyltetradecanoic acid (C1), palmitic acid (C2), and tridecanoic acid (C3) with molecular formulae C14H28O2, C16H32O2, and C13H26O2, respectively. Interestingly, palmitic acid (C2) also exhibited anti-HIV activity with an IC50 value of < 1 mu g/ml. Our findings reveal that the actinobacteria from the Andaman marine ecosystems are promising for isolating anti-infective metabolites.

10aactinobacteria10aAndaman Islands10aanti-HIV10aAntibacterial10aBioactive metabolites1 aManikkam, Radhakrishnan1 aMurthy, Sangeetha1 aPalaniappan, Sivasankar1 aKaari, Manigundan1 aSahu, Amit, Kumar1 aSaid, Madhukar1 aGanesan, Vijayalakshmi1 aKannan, Sivakumar1 aRamasamy, Balagurunathan1 aThirugnanasambandan, Somasundaram1 aDastager, Syed, G.1 aHanna, Luke, Elizabeth1 aKumar, Vanaja uhttps://library.ncl.res.in/content/antibacterial-and-anti-hiv-metabolites-marine-streptomyces-albus-mab56-isolated-andaman-and02848nas a2200313 4500008004100000022001400041245021800055210006900273260000800342300001600350490000700366520167100373653002502044653002202069653002902091653002202120653002902142100001702171700001702188700002302205700003002228700002602258700002202284700001702306700003002323700002802353700002302381856013002404 2023 eng d a0272-884200aDesign and development of multi-functional graphitic carbon nitride heterostructures embedded with copper and iron oxide nanoparticles as versatile sensing platforms for environmental and agricultural applications0 aDesign and development of multifunctional graphitic carbon nitri cJUN a20688-206980 v493 a

In the recent past, agrotechnology has witnessed a tremendous change due to the advent of technologies employed towards enhancing the yield and quality of the crops. The application of nanotechnology in agriculture is promoting sustainable practices and smart farming. Currently, nanomaterial-based sensors are gaining considerable attention in agrotechnology, such sensors can detect the environmental conditions and support for crop growth and enhances the agricultural yield. Graphiticcarbon nitride (g-C3N4), a soft polymer belongs to a class of 2-D semiconductors which are affordable, metal-free, indispensable for sensing applications due to significant changes in their conductivity upon exposure to analyte molecules in nano-regime. Further, this g-C3N4 can be combined with other nano metal oxides to form nanocomposites with remarkable properties and superior performance. In this work we report development of high-performance sensors based on graphitic carbon nitride embedded with copper and iron oxide nanoparticles. These heterostructures offers tremendous improvement in the physical and chemical properties due to the synergetic interactions between various phases. The chemiresistive sensor fabricated from these nanocomposites exhibit excellent sensitivity towards monitoring methane gas @ ppb level, relative humidity (% RH), and soil moisture content. Owing to their excellent sensitivity, stability and selectivity, this graphitic carbon nitride embedded with Cu and Fe oxide nanoparticles could be potentially used as multifunctional sensors towards environmental monitoring and greenhouse conditions in agricultural applications.

10aAgricultural sensors10aCuO nanoparticles10aEnvironmental monitoring10aFeO nanoparticles10aGraphitic carbon nitride1 aKhasim, Syed1 aPasha, Apsar1 aDastager, Syed, G.1 aPanneerselvam, Chellasamy1 aHamdalla, Taymour, A.1 aAl-Ghamdi, S., A.1 aAlfadhli, S.1 aMakandar, Mohammad, Basha1 aAlbalawi, Jalal, Bassam1 aDarwish, A., A. A. uhttps://library.ncl.res.in/content/design-and-development-multi-functional-graphitic-carbon-nitride-heterostructures-embedded02106nas a2200217 4500008004100000245007300041210006900114260000900183300001600192490000700208520144800215653001001663653001101673653001601684653002001700653001001720100002001730700001601750700002301766856009901789 2023 eng d00aIn vitro anticancer evaluation of enceleamycin A and its underlying 0 aIn vitro anticancer evaluation of enceleamycin A and its underly cNOV  a34183-341930 v133 a

It has become more crucial than ever to find novel anticancer compounds due to the rise in cancer mortality and resistance to the present chemotherapeutic drugs. Naphthoquinones are regarded as privileged structures for their ability to inhibit various cancers. The current study examined three novel furo-naphthoquinones (Enceleamycins A-C) previously isolated from Amycolatopsis sp. MCC 0218 for their anticancer potential. Enceleamycin A demonstrated considerable cytotoxicity for triple-negative breast cancer (TNBC) MDA-MB-231 cells with an IC50 value of 1.25 mu g mL(-1) (3.78 mu M). It also showed the ability to inhibit MDA-MB-231 cell migration. Enceleamycin A raises intracellular ROS levels in TNBC cells, ultimately leading to apoptotic cell death, as demonstrated by Annexin V/PI staining. The molecular docking and simulation investigation revealed better binding affinity of Enceleamycin A with AKT2, which plays a vital role in breast cancer's invasiveness and chemo-resistance. Enceleamycin A inhibits the AKT2 enzyme in vitro with an IC50 value of 0.736 mu g mL(-1) (2.22 mu M), further validating the docking study. The in silico physicochemical and pharmacokinetics characteristics of Enceleamycin A demonstrated its drug-likeness. Intriguingly, Enceleamycin A is non-hemolytic in nature. Taken together, Enceleamycin A could be a candidate molecule for treating TNBC cells by targeting the AKT2 signaling pathway.

10aAssay10acancer10aDerivatives10aNaphthoquinones10aPlays1 aKhan, Abujunaid1 aPradeep, S.1 aDastager, Syed, G. uhttps://library.ncl.res.in/content/vitro-anticancer-evaluation-enceleamycin-and-its-underlying02708nas a2200277 4500008004100000022001400041245010300055210006900158260000800227300001600235490000700251520178400258653002202042653001902064653002702083653000702110653002102117653001102138100001702149700002302166700002802189700002602217700003002243700003002273856012702303 2023 eng d a0272-884200aNovel Biogenic Synthesis of Pd/TiO@BC as an electrocatalytic and possible energy storage materials0 aNovel Biogenic Synthesis of PdTiOBC as an electrocatalytic and p cMAY a15874-158830 v493 a

The standard approach towards synthesizing nanomaterials exercising chemical or physical techniques generally costs more and necessitates using toxic chemicals, which negatively affect the environment. For the first time, an investigation of a basic green synthesis approach for Phyto fabrication of Pd/TiO@BC nanocomposite via biomass of rice husk (Oryza sativa L) is conducted to sustain the green chemistry for synthesis of less toxic chemicals. XRD analysis revealed that the structure of Phyto synthesized Pd/TiO@BC is crystalline, while UV, FTIR, SEM and EDX analyses marked the victorious nanocomposite biosynthesis. We have investigated the electrocatalytic and biomedical applications of the novel nanocomposite Pd/TiO@BC at different environmental conditions. Testing the potential electrochemical properties of Pd/TiO@BC to eliminate the Congo red (CR) dye from wastewater marked its high removal efficiency, which attained 90% owing to the higher electron efficiency. Its sensitivity for CR was also examined, and acceptable degradation activity was observed. These Pd/TiO@BC proved to be beneficial in various fields, including electrochemistry, catalysis sensors, wastewater treatment, and nano-devices, and in the transformation of hazardous particles into less harmful substances. Its great potential for use as a supercapacitor is promised by its feature, including durability and compact stability. Significant guidelines could be extracted from the results, which are helpful in material size, synthesis, selection, and configuration design for various energy storage gadgets. The synthesis of high performance and economical materials through green chemistry is a novel approach towards effective energy storage and alteration procedure operation.

10aElectro catalytic10aEnergy storage10aOryza sativa L biochar10aPd10aPdNPs and TiONPs10aTiO@BC1 aKhasim, Syed1 aDastager, Syed, G.1 aAlahmdi, Mohammed, Issa1 aHamdalla, Taymour, A.1 aPanneerselvam, Chellasamy1 aMakandar, Mohammad, Basha uhttps://library.ncl.res.in/content/novel-biogenic-synthesis-pdtiobc-electrocatalytic-and-possible-energy-storage-materials02704nas a2200337 4500008004100000022001400041245014400055210006900199260000800268300001400276490000800290520156600298653000601864653002601870653001601896653002001912653002201932653002801954100002201982700002002004700002802024700002902052700002202081700002502103700002202128700002202150700001902172700002302191700002902214856012302243 2023 eng d a0273-228900aNovel finding: 2,4-Di-tert-butylphenol from streptomyces bacillaris ANS2 effective against mycobacterium tuberculosis and cancer cell lines0 aNovel finding 24Ditertbutylphenol from streptomyces bacillaris A cNOV a6572-65850 v1953 a

The aim of the present study is to identify actinobacteria Streptomyces bacillaris ANS2 as the source of the potentially beneficial compound 2,4-di-tert-butylphenol, describe its chemical components, and assess its anti-tubercular (TB) and anti-cancer properties. Ethyl acetate was used in the agar surface fermentation of S. bacillaris ANS2 to produce the bioactive metabolites. Using various chromatographic and spectroscopy analyses, the potential bioactive metabolite separated and identified as 2,4-di-tert-butylphenol (2,4-DTBP). The lead compound 2,4-DTBP inhibited 78% and 74% of relative light unit (RLU) decrease against MDR Mycobacterium tuberculosis at 100ug/ml and 50ug/ml concentrations, respectively. The Wayne model was used to assess the latent/dormant potential in M. tuberculosis H37RV at various doses, and the MIC for the isolated molecule was found to be 100ug/ml. Furthermore, the molecular docking of 2,4-DTBP was docked using Autodock Vinasuite onto the substrate binding site of the target Mycobacterium lysine aminotransferase (LAT) and the grid box was configured for the docking run to cover the whole LAT dimer interface. At a dosage of 1 mg/ml, the anti-cancer activity of the compound 2,4-DTBP was 88% and 89% inhibited against the HT 29 (colon cancer) and HeLa (cervical cancer) cell lines. According to our literature survey, this present finding may be the first report on anti-TB activity of 2,4-DTBP and has the potential to become an effective natural source and the promising pharmaceutical drug in the future.

10a210a4-Di-tert-butylphenol10aanti-cancer10aAnti-tubercular10aMolecular docking10aStreptomyces bacillaris1 aKaari, Manigundan1 aJoseph, Jerrine1 aManikkam, Radhakrishnan1 aKalyanasundaram, Revathy1 aSivaraj, Anbarasu1 aAnbalmani, Sivarajan1 aMurthy, Sangeetha1 aSahu, Amit, Kumar1 aSaid, Madhukar1 aDastager, Syed, G.1 aRamasamy, Balagurunathan uhttps://library.ncl.res.in/content/novel-finding-24-di-tert-butylphenol-streptomyces-bacillaris-ans2-effective-against02268nas a2200193 4500008004100000022001400041245011900055210006900174260000800243490000800251520156300259653002801822653001901850653001901869653001601888100001901904700002301923856012801946 2024 eng d a0006-352500aBacterial nanocellulose: a versatile biopolymer production using a cost-effective wooden disc based rotary reactor0 aBacterial nanocellulose a versatile biopolymer production using  cJUL0 v1153 a

Bacterial nanocellulose (BNC) has various unique qualities, including high mechanical strength, crystallinity, and high water-holding capacity, which makes it appropriate for a wide range of industrial applications. But its lower yield coupled with its high production cost creates a barrier to its usage. In this study, we have demonstrated the better yield of BNC from an indigenous strain Komagataeibacter rhaeticus MCC-0157 using a rotary disc bioreactor (RDB) having a wooden disc. The RDB was optimized based on the type of disc material, distance between the disc, and rotation speed to get the highest yield of 13.0 g/L dry material using Hestrin-Schramm (H-S) medium. Further, the bioreactor was compared for the BNC production using reported medium, which is used for static condition; the RDB showed up to fivefold increase in comparison with the static condition reported. Komagataeibacter rhaeticus MCC-0157 was previously reported to be one of the highest BNC producing stains, with 8.37 g/L of dry yield in static condition in 15 days incubation. The designed RDB demonstrated 13.0 g/L dry yield of BNC in just 5 days. Other characteristics of BNC remain same as compared with static BNC production, although the difference in the crystallinity index was observed in RDB (84.44%) in comparison with static (89.74%). For the first time, wooden disc was used for rotary bioreactor approach, which demonstrated higher yield of BNC in lesser time and can be further used for sustainable production of BNC at the industrial level. image

10abacterial nanocellulose10arotary reactor10aSustainability10awooden disc1 aJagtap, Ashish1 aDastager, Syed, G. uhttps://library.ncl.res.in/content/bacterial-nanocellulose-versatile-biopolymer-production-using-cost-effective-wooden-disc02477nas a2200301 4500008004100000022001400041245012900055210006900184260000800253300001100261490000800272520146800280653002901748653001301777653001801790653001601808653001401824653001401838653002301852100002201875700002301897700002601920700002301946700002501969700002601994700002802020856012702048 2024 eng d a0014-305700aCatechol- and phenolic hydroxyl-functionalized partially bio-based (Co) poly(ether sulfone)s with multifarious applicability0 aCatechol and phenolic hydroxylfunctionalized partially biobased  cNOV a1134840 v2203 a

A largely bio-based new bisphenol, namely, 4,4 `-((3,4-dimethoxyphenyl)methylene)-bis(2-methoxyphenol) (DMBM) was synthesized by the reaction of veratraldehyde with guaiacol. DMBM and varying compositions of DMBM and bisphenol A were polycondensed with bis(4-fluorophenyl) sulfone to afford reasonably high molecular weight film-forming (co)poly(ether sulfone)s possessing built-in methoxyl groups. T10 and Tg values of (co)poly(ether sulfone)s were in the range 382-478 degrees C and 171-187 degrees C, respectively indicating their good thermal stability and the values decreased with increase in mol % incorporation of DMBM. The methoxyl groups present in (co)poly (ether sulfone)s were quantitatively de-blocked resulting in the formation of corresponding polymers possessing pendant catechol moieties and free phenolic hydroxyl groups. By virtue of the presence of these functional moieties, (co)poly(ether sulfone)s are amenable for post-polymerization modifications, and exhibited properties such as antimicrobial (23 mm against Staphylococcus aureus and 18 mm against Escherichia coli)), antioxidant (72 % scavenger of free radicals), adhesive (2.24 MPa lap shear strength) and usefulness as redox-active agent in zinc-ion batteries. These data underscore the promise of DMBM as a versatile monomer of wider utility for the synthesis of functional (co)poly(ether sulfone)s capable of expanding their applicability beyond the conventional ones.

10a(Co)poly(ether sulfone)s10aadhesive10aAntimicrobial10aAntioxidant10abio-based10abisphenol10aZinc-ion batteries1 aWale, Apparav, K.1 aJagtap, Ashish, S.1 aPandey, Priyanshi, R.1 aDastager, Syed, G.1 aShelke, Manjusha, V.1 aAmbade, Ashootosh, V.1 aWadgaonkar, Prakash, P. uhttps://library.ncl.res.in/content/catechol-and-phenolic-hydroxyl-functionalized-partially-bio-based-co-polyether-sulfones02735nas a2200277 4500008004100000022001400041245006700055210006400122260000800186300000700194490000800201520192800209653001302137653001802150653002402168100001602192700002102208700001802229700001802247700001802265700002002283700001902303700001802322700002302340856009402363 2024 eng d a0302-893300aFictibacillus fluitans sp. nov., isolated from freshwater pond0 aFictibacillus fluitans sp nov isolated from freshwater pond cFEB a700 v2063 a

A Gram-positive, aerobic, rod-shaped, spore-forming bacterium, designated NE201(T), was isolated from a freshwater pond in Village Nerur, India. Growth was observed in the range of 15-45 degrees C temperature with optimum at 30 degrees C, pH range of 5-9 (optimum at 7.0), and at concentrations of NaCl ranging between 0 and 14% (optimum 0%, w/v). The 16S rRNA gene sequence showed the highest similarity with Fictibacillus enclensis NIO-1003(T) (JF893461) at 99.01% followed by F. rigui WPCB074(T) (EU939689) at 98.9% and F. solisalsi CGMCC 1.6854(T) (EU046268) at 98.66%. The digital DNA-DNA hybridization (dDDH) and orthoANI values for strain NE201(T) against F. enclensis NIO-1003(T) (GCA_900094955.1) were 33.7% and 87.68%, respectively. The phylogenetic analysis based on the 16S rRNA gene, 92 core genes derived from the genome, and 20 proteins involving over 20,236 amino acid positions revealed the distinct phylogenetic position of strain NE201(T) and the formation of a clearly defined monophyletic clade with F. enclensis. The strain NE201(T) showed a unique carbon utilization and assimilation pattern that differentiated it from F. enclensis NIO-1003(T). The major fatty acids were anteiso -C-15:0 (51.42%) and iso-C-15:0 (18.88%). The major polar lipids were phosphatidylglycerol (PG), phosphatidylethanolamine (PE, and diphosphatidylglycerol (DPG). The antiSMASH analyzed genome of NE201(T) highlighted its diverse biosynthetic potential, unveiling regions associated with terpene, non-ribosomal peptide synthetases (NRPS), lassopeptides, NI-siderophores, lanthipeptides (LAP), and Type 3 Polyketide Synthases (T3PKS). The overall phenotypic, genotypic, and chemotaxonomic characters strongly suggested that the strain NE201(T) represents a novel species of genus Fictibacillus for which the name Fictibacillus fluitans sp. nov. is proposed. The type strain is NE201(T) (= MCC 5285 = JCM 36474).

10aBacillus10aFictibacillus10aFreshwater bacteria1 aYadav, Amit1 aMaurya, Akanksha1 aBhavsar, Yash1 aTeware, Ruchi1 aBhatt, Agrima1 aDaCosta, Elaine1 aThorat, Vipool1 aKirdat, Kiran1 aDastager, Syed, G. uhttps://library.ncl.res.in/content/fictibacillus-fluitans-sp-nov-isolated-freshwater-pond02902nas a2200301 4500008004100000022001400041245009800055210006900153260000900222300001100231490000800242520188100250653002502131653002402156653003702180653002702217653001802244653002602262100002502288700002502313700002302338700002302361700001802384700002302402700002202425700002702447856012602474 2024 eng d a0168-160500aGenome sequencing and protein modeling unraveled the 2AP biosynthesis in Bacillus cereus DB250 aGenome sequencing and protein modeling unraveled the 2AP biosynt cMAR  a1106000 v4133 a

2-Acetyl-1-pyrroline (2AP) is an important and major flavor aroma compound responsible for the fragrance of basmati rice, cheese, wine, and several other food products. Biosynthesis of 2AP in aromatic rice and a few other plant species is associated with a recessive Betaine aldehyde dehydrogenase 2 (BADH2) gene. However, the literature is scant on the relationship between the functional BADH2 gene and 2AP biosynthesis in prokaryotic systems. Therefore, in the present study, we aimed to explore the functionality of the BADH2 gene for 2AP biosynthesis in 2AP synthesizing rice rhizobacterial isolate Bacillus cereus DB25 isolated from the rhizosphere of basmati rice (Oryza sativa L.). Full-length BcBADH2 sequence was obtained through whole genome sequencing (WGS) and further confirmed through traditional PCR and Sanger sequencing. Then the functionality of the BcBADH2 gene was evaluated in-silico through bioinformatics analysis and protein docking studies and further experimentally validated through enzyme assay. The sequencing and bioinformatics analysis results revealed a full-length 1485 bp BcBADH2 coding sequence without any deletion or premature stop codons. Full-length BcBADH2 was found to encode a fully functional protein of 54.08 kDa with pI of 5.22 and showed the presence of the conserved amino acids responsible for enzyme activity. The docking studies confirmed a good affinity between the protein and its substrate whereas the presence of BcBADH2 enzyme activity confirmed the functionality of BADH2 enzyme in B. cereus DB25. In conclusion, the findings of the present study suggest that B. cereus DB25 is able to synthesize 2AP despite a functional BADH2 gene and there may be a different molecular mechanism responsible for 2AP biosynthesis in bacterial systems, unlike that found in aromatic rice and other eukaryotic plant species.

10a2-Acetyl-1-pyrroline10aBasmati rice flavor10aBetaine aldehyde dehydrogenase 210aProtein-ligand docking10aRhizobacteria10aWhole-genome sequence1 aDhondge, Harshal, V.1 aBarvkar, Vitthal, T.1 aDastager, Syed, G.1 aDharne, Mahesh, S.1 aRajput, Vinay1 aPable, Anupama, A.1 aHenry, Robert, J.1 aNadaf, Altafhusain, B. uhttps://library.ncl.res.in/content/genome-sequencing-and-protein-modeling-unraveled-2ap-biosynthesis-bacillus-cereus-db2504223nas a2200205 4500008004100000245009500041210006900136260000800205520345300213100002203666700002503688700002603713700002503739700002803764700002203792700002303814700002903837700002903866856012203895 2024 eng d00aMultifunctional metabolites of Streptomyces kunmingensis BS19 from bamboo rhizosphere soil0 aMultifunctional metabolites of Streptomyces kunmingensis BS19 fr cNOV3 a

A pigmented bioactive molecule from Streptomyces kunmingensis BS19 was isolated, characterized, and evaluated for anti-infective, antiproliferative, and wound-healing properties. The yellow–red pigment produced from the strain BS19 showed promising activity against methicillin-resistant Staphylococcus aureus (MRSA) and Mycobacterium tuberculosis. Extracellular bioactive pigment from the strain BS19 was produced by agar surface fermentation and purified through bioassay guided preparative HPLC-based purification. Based on the results of UV, FT-IR, GC–MS, 1H NMR, and 13C NMR spectral analyses, the purified pigment was identified as a chromopeptide class of molecule with phenoxazinone chromophore. Its molecular weight was determined as the chemical formula C64H90N12O16 and molecular weight 1283 g/mol. It exhibited promising antimicrobial activity against Staphylococcus aureus (ATCC 1720) and antiproliferative activity against 14 types of human cancer cell lines. It showed good in vivo wound-healing activity in the rat model. The present study explored Streptomyces kunmingensis as a newly added source for the isolation of chromopeptide antibiotics for antimicrobial, wound-healing, and anticancer applications.

1 aSangeetha, Murthy1 aSasirekha, Sivakumar1 aMahendran, Jaganathan1 aSivarajan, Anbalmani1 aRadhakrishnan, Manikkam1 aManigundan, Kaari1 aDastager, Syed, G.1 aSengottuvelu, Singaravel1 aBalagurunathan, Ramasamy uhttps://library.ncl.res.in/content/multifunctional-metabolites-streptomyces-kunmingensis-bs19-bamboo-rhizosphere-soil02655nas a2200241 4500008004100000022001400041245013500055210006900190260000800259300001200267490000700279520182500286653001502111653001702126653002402143653001302167653001702180653002302197100002202220700002302242700002302265856012502288 2024 eng d a1139-670900aStrain improvement for enhanced erythritol production by Moniliella pollinis Mutant-58 using jaggery as a cost-effective substrate0 aStrain improvement for enhanced erythritol production by Monilie cAPR a581-5960 v273 a

Erythritol has been produced by various microorganisms including Yarrowia, Moniliella, Aureobasidium, and Candida strains. Due to its relatively high price, erythritol sweetener is used lesser than other polyols despite having many advantages. Therefore, in this study, Moniliella pollinis strain was improved for erythritol production by chemical mutagenesis and subsequently screening for cost-effective carbon sources for the enhanced erythritol yield. M. pollinis was subjected to N-methyl N-nitro N-nitroso guanidine (NTG), ethyl methyl sulfonate (EMS), and UV mutagenesis for improved erythritol production. The fmutant strains were evaluated for enhanced erythritol production medium optimization by using different carbon substrates at the shake flask level. To enhance the production of erythritol and statistical media, optimization was carried out using a central composite design (CCD). Among 198 isolated mutants, Mutant-58 strain generated by EMS mutagenesis was selected for further assessment. The Mutant-58 strain showed significant morphological changes as compared to the parent strain. Furthermore, statistically optimized media composition resulted in the higher production of erythritol (91.2 & PLUSMN; 3.4 g/L) with a yield of 40.7 & PLUSMN; 3.4 % in shake flask experiments. The optimized medium composition for erythritol production constitutes (g/L) 225 jaggery, 4.4 yeast extract (YE), 4.4 KH2PO4, 0.31 MgSO4, and pH 5.5. The present study demonstrated strain improvement, media, and process optimization resulting in a 30% increase in the erythritol production in the Mutant-58 as compared to the parent strain. This is also the first instance where jaggery has been used as a cost-effective carbon source alternative to glucose for industrial-scale erythritol production.

10aErythritol10aFermentation10aMoniliella pollinis10aMutation10aOptimization10arenewable resource1 aKhatape, Anil, B.1 aRangaswamy, Vidhya1 aDastager, Syed, G. uhttps://library.ncl.res.in/content/strain-improvement-enhanced-erythritol-production-moniliella-pollinis-mutant-58-using02210nas a2200217 4500008004100000022001400041245011100055210006900166260000800235300001100243490000800254520145000262653002801712653001701740653002501757653001301782100001901795700002501814700002301839856013001862 2025 eng d a0141-813000aBacterial nanocellulose (BNC) produced from sorbitol as a sustainable nano-filter for oil-water separation0 aBacterial nanocellulose BNC produced from sorbitol as a sustaina cJAN a1379530 v2843 a

Oil spillage is one of the serious problems for sustainable environment. Bacterial nanocellulose (BNC), a hydrophilic and highly porous material holds a promising material for oil-water separation from contaminants. In the present work, a hydrophilic BNC produced from a sorbitol as the carbon source demonstrated the unique porous symmetrical arrangement having an oleophilic property. The BNC membrane obtained showed the highest water holding capacity (WHC) of approximate to 147 gg 1 . The Brunauer-Emmett-Teller (BET) analysis of BNC revealed the unique characteristics of isothermic patterns, having macro sized pores with diameter of 121.3 nm and surface area of 40.6m2/g, which plays a vital role in separation of oil from water by allowing passage of only water through it. The separation efficiency of BNC membrane produced after 5th day of incubation has showed 99.0 % oil removal compared to 10 and 15th day incubated BNC membranes. a CFD model to investigate the possibilities of BNC membranes and clarify the dynamics of oil-water separation. The nanostructured network of BNC offers a tortuous path for oil molecules while allowing rapid permeation of water, leading to high separation selectivity and flux. Although BNC has been previously studied for oil water separation, this study provides new insights into the use of wet BNC membranes into its pristine state with sorbitol as carbon source for this application.

10abacterial nanocellulose10aMacro porous10aOil-water separation10aSorbitol1 aJagtap, Ashish1 aKrushnatray, Ajinkya1 aDastager, Syed, G. uhttps://library.ncl.res.in/content/bacterial-nanocellulose-bnc-produced-sorbitol-sustainable-nano-filter-oil-water-separation02258nas a2200277 4500008004100000022001400041245009400055210006900149260000800218300000800226490000800234520130900242653003301551653001301584653001201597653003001609653001401639100003801653700002701691700002301718700003701741700002401778700002701802700003401829856011701863 2025 eng d a0175-759800aLow-cost gelatin/collagen scaffolds for bacterial growth in bioreactors for biotechnology0 aLowcost gelatincollagen scaffolds for bacterial growth in biorea cMAY a1130 v1093 a

A wide array of pharmaceutical and industrial products available in today's market stems from bioreactors. Meeting the escalating demand for these products necessitates significant enhancements in biotechnological processes. This study focuses on developing cost-effective scaffolds designed explicitly for use within bioreactors, employing commonly used polymers such as gelatin and collagen. Bacterial proliferation assays involving Escherichia coli, Staphylococcus aureus, and Pseudomonas aeruginosa were conducted to assess the effectiveness of these scaffolds. The scaffolds were produced by electrospinning polymeric solutions with varying concentrations of gelatin and collagen and were characterized using scanning electron microscopy, Fourier transform infrared spectroscopy, differential scanning calorimetry, and thermogravimetric analysis. Results revealed that scaffolds with 15% gelatin increased the 24-h proliferation of S. aureus, P. aeruginosa, and E. coli by 52%, 35%, and 20%, respectively. In the case of E. coli, scaffolds with lower gelatin concentrations (1-10%) were more effective, leading to 35-55% proliferation growth. These findings highlight the potential application of gelatin/collagen scaffolds in fabricating industrial products derived from these bacteria.

10aBacterial cell proliferation10acollagen10agelatin10aPolymeric electrospinning10ascaffolds1 aPompa-Monroy, Daniella, Alejandra1 aVera-Graziano, Ricardo1 aDastager, Syed, G.1 aPerez-Gonzalez, Graciela, Lizeth1 aBogdanchikova, Nina1 aIglesias, Ana, Leticia1 aVillarreal-Gomez, Luis, Jesus uhttps://library.ncl.res.in/content/low-cost-gelatincollagen-scaffolds-bacterial-growth-bioreactors-biotechnology02702nas a2200265 4500008004100000022001400041245010900055210006900164260000800233300001400241490000700255520179800262653003302060653002602093653001402119653003002133653001402163100002602177700002402203700001402227700002202241700002302263700002002286856013002306 2025 eng d a0965-040700aNigericin-induced apoptosis in acute myeloid leukemia via mitochondrial dysfunction and oxidative stress0 aNigericininduced apoptosis in acute myeloid leukemia via mitocho cAUG a2161-21740 v333 a

Background: Acute Myeloid Leukemia (AML) is a highly aggressive clonal hematological malignancy with limited treatment options. This study aimed to evaluate the therapeutic potential of nigericin, a polyether ionophore derived from Streptomyces DASNCL-29, as a mitochondrial-targeted agent for AML treatment. Methods: Nigericin was isolated from Streptomyces DASNCL-29 and characterized via chromatography and NMR. Its cytotoxicity was tested in MOLM13 (sensitive and venetoclax-resistant) and HL60 (sensitive and cytarabine-resistant) cells using the MTT assay. Mitochondrial dysfunction was assessed by measuring reactive oxygen species (ROS), mitochondrial membrane potential (Arum), and mitochondrial mass. Apoptosis was evaluated with Annexin V/PI assays and immunoblotting, while proteomic analysis was conducted using Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS) to identify differentially regulated proteins. Results: Nigericin demonstrated potent cytotoxicity with IC50 values of 57.02 nM in MOLM13-sensitive, 35.29 nM in MOLM13-resistant, 20.49 nM in HL60-sensitive, and 1.197 nM in HL60-cytarabine-resistant cells. Apoptosis was confirmed by Annexin V/PI staining and caspase-3/PARP cleavage, along with MCL-1 downregulation. Mitochondrial dysfunction was evident from increased ROS, reduced Arum, and decreased mitochondrial mass. Proteomic profiling identified 264 dysregulated proteins, including a 3.8-fold upregulation of Succinate Dehydrogenase [Ubiquinone] Flavoprotein Subunit A (SDHA). Conclusion: Nigericin induces apoptosis in AML cells by disrupting mitochondrial function and enhancing oxidative stress. Its nanomolar potency highlights the need for further mechanistic studies and in vivo evaluations to explore its potential in AML treatment.

10aAcute myeloid leukemia (AML)10aAntineoplastic agents10aApoptosis10aMitochondrial dysfunction10aNigericin1 aArun, Bhavyadharshini1 aGopinath, Prarthana1 aJha, Anup1 aTripathi, Nishtha1 aDastager, Syed, G.1 aHasan, Syed, K. uhttps://library.ncl.res.in/content/nigericin-induced-apoptosis-acute-myeloid-leukemia-mitochondrial-dysfunction-and-oxidative02793nas a2200301 4500008004100000022001400041245009500055210006900150260000900219300001100228490000800239520180900247653001302056653002202069653003102091653002402122653001402146653001802160100002702178700002902205700002502234700002302259700001802282700002902300700001602329700002302345856012302368 2025 eng d a0378-517300aStimulant immobilized bioactive film of functionalized egg albumin blend for wound healing0 aStimulant immobilized bioactive film of functionalized egg album cSEP  a1258960 v6823 a

Wound healing materials with advanced properties that facilitates higher collagen deposition, improved angiogenesis and quick tissue regeneration are crucial for clinical wound management. To meet the requirement, for the first time, our studies focus on engineering bio-originated natural materials, which are tested in combination with the active agents, ascorbic acid (AA), a stimulant and metronidazole (Mtz), an anti-microbial drug. Accordingly, a dual drug (AA, and Mtz) loaded film of functionalized egg albumin (FEA)-poly(vinyl alcohol) (PVA) was fabricated following the solution casting method. The film was characterized for its morphology and physicochemical properties using various analytical tools. The potential of the film as a wound healing material was evaluated, by in vitro drug release, degradation, cell viability, antimicrobial studies, in vivo wound healing, and histopathological analyses. In vitro degradation studies confirmed their degradability in enzymatic and soil burial conditions. Cytotoxicity studies demonstrated their non-toxicity, and the antimicrobial investigations showcased that the material was antibacterial. On the 14th day, the wound closure percentage of the wound induced control group, GI (without treatment) was notably higher at 95 % compared to the test formulation group, GV [FEA-PVA (30/70 w/w) loaded with Mtz and AA (10 % w/w of the total polymer weight), respectively], which exhibited a wound closure of 83 %. Furthermore, the histopathological examinations revealed that the inner wound healing in GV was comparatively better than in GI in terms of angiogenesis, epidermal remodeling, higher collagen deposition, coherency, and tissue regeneration. Consequently, the formulated film can be deemed a suitable wound dressing material.

10acollagen10aDual drug release10aFunctionalized egg albumin10aPolymer blend films10aStimulant10awound Healing1 aGautam, Tripurari, Rao1 aPatel, Pratikshkumar, R.1 aSingam, Amarnath, R.1 aJagtap, Ashish, S.1 aDesai, Prasad1 aGundloori, Rathna, V. N.1 aPawar, Anil1 aDastager, Syed, G. uhttps://library.ncl.res.in/content/stimulant-immobilized-bioactive-film-functionalized-egg-albumin-blend-wound-healing01918nas a2200205 4500008004100000022001400041245011000055210006900165260000800234300001200242490000700254520118700261100002701448700002201475700002101497700002801518700002301546700002401569856011901593 2025 eng d a1525-779700aVat-based 3D-bioprinted scaffolds from photocurable bacterial levan for osteogenesis and immunomodulation0 aVatbased 3Dbioprinted scaffolds from photocurable bacterial leva cJAN a954-9660 v263 a

Emerging techniques of additive manufacturing, such as vat-based three-dimensional (3D) bioprinting, offer novel routes to prepare personalized scaffolds of complex geometries. However, there is a need to develop bioinks suitable for clinical translation. This study explored the potential of bacterial-sourced methacrylate levan (LeMA) as a bioink for the digital light processing (DLP) 3D bioprinting of bone tissue scaffolds. LeMA was successfully synthesized, characterized, and used to fabricate 3D-bioprinted scaffolds with excellent printability and physicochemical properties. In vitro studies demonstrated superior cytocompatibility of 15% w/v LeMA gels compared to 20% gels. 15% LeMA gels supported osteogenic differentiation , as evidenced by alkaline phosphatase activity and mineral deposition by MC3T3 pre-osteoblasts. Importantly, the LeMA hydrogels positively modulated the macrophage phenotype, promoting the expression of the anti-inflammatory marker CD206. These findings suggest that 3D-printed LeMA scaffolds can create a favorable microenvironment for bone regeneration, highlighting their potential for tissue repair and regeneration applications.

1 aWaidi, Yusuf, Olatunji1 aWagh, Vasudev, S.1 aMishra, Shivangi1 aJhunjhunwala, Siddharth1 aDastager, Syed, G.1 aChatterjee, Kaushik uhttps://library.ncl.res.in/content/vat-based-3d-bioprinted-scaffolds-photocurable-bacterial-levan-osteogenesis-and02080nas a2200229 4500008004100000022001400041245011800055210006900173260000800242300001400250490000800264520125900272653003401531653002401565653002401589653002001613653001901633100002301652700002301675700002301698856012901721 2026 eng d a0929-187300aMarine Arthrobacter enclensis NIO-1008T as a salicylic acid producing biocontrol agent against Fusarium oxysporum0 aMarine Arthrobacter enclensis NIO1008T as a salicylic acid produ cJUN a1103-11200 v1743 a

The importance of microorganisms in plant growth promotion (PGP) and disease control has long been acknowledged. However, marine bacteria have been largely neglected in agricultural applications. In this study, previously identified marine strain Arthrobacter enclensis NIO-1008T has been explored for mitigation of Fusarium oxysporum NCIM 1281 infestation on wheat plants. A genome analysis study confirmed strain NIO-1008T has protein encoding genes associated with stress tolerance, antifungal activity and PGP. A growth attributes study showed strain NIO-1008T has the ability to grow at 4-11 pH, 6% NaCl and in presence of heavy metals. PGP traits, such as ammonia, siderophore and total indole (640 +/- 9 mu g/mL), were also confirmed. Moreover, an antagonistic assay showed 66 +/- 2% F. oxysporum mycelial growth inhibition. Furthermore, NMR data confirmed strain NIO-1008T produced salicylic acid (SA), which inhibited spore germination and mycelial growth. A greenhouse pot experiment showed that disease incidence significantly reduced to 70% in the presence of strain NIO-1008T, and 45.7% in SA, compared to control wheat plants. This study concludes A. enclensis NIO-1008T is a potential biocontrol candidate against F. oxysporum.

10aF. oxysporum10aAntifungal compound10aBiocontrol activity10aMarine bacteria10aSalicylic acid1 aKharat, Bharat, A.1 aSaid, Madhukar, S.1 aDastager, Syed, G. uhttps://library.ncl.res.in/content/marine-arthrobacter-enclensis-nio-1008t-salicylic-acid-producing-biocontrol-agent-against02398nas a2200289 4500008004100000022001400041245011100055210006900166260000800235300001100243490000800254520145100262653001901713653003101732653002401763653001601787653001601803653002001819100002101839700001601860700002201876700001801898700002501916700001801941700002301959856012601982 2026 eng d a0141-391000aNovel biosurfactant assisted biodegradation of polystyrene by Actinomycetes and its chemical understanding0 aNovel biosurfactant assisted biodegradation of polystyrene by Ac cAPR a1119460 v2463 a

The current study highlights the effective biodegradation of polystyrene by two actinobacterial strains, Glutamicibacter sp. K-1 and Rhodococcus sp. BG-30. FT-IR, Raman spectroscopy, and GPC data showed the degradation pattern of polystyrene. Additionally, GC-MS analysis showed that strain K-1 produced a variety of degradation by-products, including alkanes, 2,4-Di-ter-butyl phenol, 2-propenoic acid, tridecyl ester, and dibutyl phthalate, while strain BG-30 produced a greater amount of alkenes, phthalic acid, and isobutyl octyl esters. GPC detected a drop in polystyrene's average molecular weight (Mn), which suggests chain scission of the polymer. Changes in polystyrene's roughness and other morphological properties were shown by AFM and FE-SEM. The effects of a conventional rhamnolipid and a novel thermostable biosurfactant fatty alkene (0.1 % each) on the breakdown of polystyrene were examined. Strain K-1 and BG-30 resulted in increasing the degradation of polystyrene to 12 % (w/w) and 16 % (w/w), respectively in the presence of fatty alkene biosurfactant, there was 10 % (w/w) and 8 % (w/w), degradation in presence of rhamnolipid. To the best of our knowledge, degradation of polystyrene by Glutamicibacter sp. has been reported as a newly identified strain and use of a novel biosurfactant together revealed their potential in biodegradation of plastic to mitigate the plastic pollution using microbial resources.

10aBiodegradation10aFatty alkene biosurfactant10aGlutamicibacter sp.10aPolystyrene10aRhamnolipid10aRhodococcus sp.1 aSakpal, Amrapali1 aHaq, Nazrul1 aDasgupta, Santanu1 aAlanazi, Fars1 aAlsarra, Ibrahim, A.1 aAlam, Mahboob1 aDastager, Syed, G. uhttps://library.ncl.res.in/content/novel-biosurfactant-assisted-biodegradation-polystyrene-actinomycetes-and-its-chemical02916nas a2200301 4500008004100000022001400041245015000055210006900205260000800274300001400282490000600296520186400302653003302166653001802199653002702217653001302244653001802257653002102275100002002296700002802316700001602344700002502360700002302385700002902408700002702437700002602464856012402490 2026 eng d a2637-610500apH-Responsive and antimicrobial polymer synthesis in continuous flow and effect of pendant alkylamine on the squaraine dye photocatalyst activity0 apHResponsive and antimicrobial polymer synthesis in continuous f cMAY a6287-63000 v83 a

pH-responsive and antimicrobial polymers were synthesized by photoinduced electron transfer-reversible addition-fragmentation chain transfer (PET-RAFT) polymerization under blue light (lambda max = 485 nm) using a scalable continuous flow method. The effect of pendant alkylamino groups with different alkyl substituents on methacrylate monomers under blue light is investigated in the absence of a tertiary alkylamine reagent and in the presence of cyanopentanoic acid dithiobenzoate and 4-cyano-4-[(dodecylsulfanylthiocarbonyl) sulfanyl]pentanoic acid as RAFT agents. The rate of polymerization is found to vary with the size of the alkyl chain and with the tertiary, secondary, or quaternary nature of the amino group. The ability of pendant alkylamino groups to transfer electrons to the photocatalyst is shown using cyclic voltammetry and fluorescence quenching experiments; the tendency to suppress dye aggregation is observed using UV-vis spectroscopy; and the rates of polymerization could be correlated with the trend in these results. The mechanism of polymerization is proposed to follow a reductive or oxidative electron transfer pathway depending on the nature of the pendant group. Statistical and diblock copolymers with 2-hydroxyethyl methacrylate are synthesized in batch and continuous flow processes with a comparative study of kinetics in the two methods. The synthesis of high-molecular-weight homopolymer (55,000 g/mol) and statistical copolymer (85,000 g/mol) of N,N-diisopropylaminoethyl methacrylate is shown in continuous flow. The solution self-assembly of diblock copolymers is studied, and the pH-responsive morphology change leading to disassembly is shown. The antimicrobial properties of polymers with a quaternary ammonium pendant group are evaluated. The thermal degradation of statistical copolymers is analyzed.

10aalkylaminoethyl methacrylate10aAntimicrobial10acontinuous flowprocess10aPET-RAFT10apH-responsive10aself-aggregation1 aPatil, Anil, M.1 aNawghare, Indrajeet, S.1 aSiby, Jesna1 aBankar, Priyanka, M.1 aDastager, Syed, G.1 aRode, Chandrashekhar, V.1 aNithyanandhan, Jayaraj1 aAmbade, Ashootosh, V. uhttps://library.ncl.res.in/content/ph-responsive-and-antimicrobial-polymer-synthesis-continuous-flow-and-effect-pendant02850nas a2200301 4500008004100000022001400041245011900055210006900174260001000243300001100253490000900264520183800273653002502111653002202136653002002158653002002178653001902198653002602217100002502243700002302268700001902291700002202310700002402332700001602356700002302372700002402395856012902419 2026 eng d a0022-286000aTransition metal complexes of Thiadiazole-Picolinic acid: Crystal structures, DFT insights and anticancer activity0 aTransition metal complexes of ThiadiazolePicolinic acid Crystal  cMAR 5 a1447630 v13543 a

Five novel transition metal complexes [Ni(H2aeth)2(Pic)2] (1), [Co(H2aeth)2(Pic)2] (2), [Ni(H2aeth)2(Pic)(HPic)] ClO4 (3), [Co(H2aeth)2(Pic)(HPic)]ClO4 (4) and [Zn(H2aeth)2 (Pic)(HPic)]ClO4 (5) were synthesized using a 2amino-5-ethylthio-1,3,4-thiadiazole (H2aeth) and picolinic acid (HPic) as co-ligands. These complexes were characterized by FT-IR, UV-Vis., X-ray photoelectron spectroscopy, TG-DTA, and single-crystal X-ray techniques. Crystallographic analysis confirmed distorted octahedral geometries around the metal centers with extensive hydrogen bonding networks promoting supramolecular assembly in the solid state. X-ray photoelectron spectroscopy (XPS), validated the +2 oxidation state of each metal center. Thermal studies indicated multistep decomposition processes resulting in the formation of metal oxides. Density functional theory (DFT) and timedependent DFT calculations were employed to explore electronic structures and predict UV-Vis. transitions, which showed good agreement with experimental data. Frontier molecular orbital (FMO) analysis revealed that Ni(II) complexes 1 and 3 are softer and more reactive, consistent with their observed biological activity. The anticancer potential of complexes 1-5 was evaluated in vitro using the MCF-7 human breast cancer cell line and the MTT assay. Complex 1 exhibited the strongest cytotoxicity (IC50 = 26.5 mu g/mL) followed by complexes 3 (34.9 mu g/mL), 4 (46.4 mu g/mL), 2 (81.1 mu g/mL), and 5 (103.3 mu g/mL). The observed activity trends correlate with metal identity and coordination environment, underlining the role of electronic and structural factors in modulating bioactivity. These findings suggest that thiadiazole-picolinate metal complexes, particularly those based on Ni (II), are promising scaffolds for anticancer drug development.

10aAnti-cancer activity10acrystal structure10aDFT calculation10aMCF-7 cell line10aPicolinic acid10aThiadiazole complexes1 aTorambetov, Batirbay1 aKhojabaeva, Gulnaz1 aBharty, M., K.1 aGupta, Sushil, K.1 aKadirova, Shakhnoza1 aPradeep, S.1 aDastager, Syed, G.1 aGonnade, Rajesh, G. uhttps://library.ncl.res.in/content/transition-metal-complexes-thiadiazole-picolinic-acid-crystal-structures-dft-insights-and