02440nas a2200277   4500008004100000022001400041245013600055210006900191260000800260300001100268490000800279520148000287653001401767653001801781653003401799653002501833653001701858653002501875653001101900100002201911700002901933700002401962700002601986700002002012856013002032       2020                        eng d  a0926-669000aGeneration of novelties in the genus Ocimum as a result of natural hybridization: a morphological, genetical and chemical appraisal0 aGeneration of novelties in the genus Ocimum as a result of natur  cNOV  a1128590 v1563 a<p>The genus Ocimum is a boutique of a diverse set of specialized metabolites such as terpenoids and phenylpropanoids. Each Ocimum species and its cultivars represent a characteristic chemical profile. The present study explored the two interspecific Ocimum hybrids originating through a serendipitous natural cross between O. kilimandscharicum and O. basilicum. These two novel Ocimum hybrids exhibited intermediate morphological features of two parental species. Inter simple sequence repeats (ISSR) analysis and DNA barcoding with the plastid non-coding trnH-psbA intergenic spacer region reaffirmed unambiguous parental identification and differentiation of these natural hybrids from other available Ocimum species. Consequently, gas chromatographymass spectrometry-based metabolite profiling of two hybrids identified them as specific chemotypes with the presence of a unique blend of specialized metabolites from the parental species, which are either rich in terpenes or phenylpropanoids. Additionally, expression analysis of key genes from terpenoid and phenylpropanoid pathways corroborated with differential metabolite accumulation. Thus, these two Ocimum hybrids represented the novel chemotypes, which could be useful in commercial cultivation to produce novel essential oil and bioactive constituents. Further, the resulting metabolite diversity could have potential industrial applications in the areas of healthcare, bioremediation, and crop protection.</p>
10aChemotype10aDNA barcoding10aInter Simple Sequence Repeats10aInterspecific hybrid10aO. basilicum10aO. kilimandscharicum10aOcimum1 aGurav, Tanuja, P.1 aJayaramaiah, Ramesha, H.1 aPunekar, Sachin, A.1 aDholakia, Bhushan, B.1 aGiri, Ashok, P.  uhttps://library.ncl.res.in/content/generation-novelties-genus-ocimum-result-natural-hybridization-morphological-genetical-and02527nas a2200241   4500008004100000022001400041245014400055210006900199260000800268300001200276490000700288520167700295653001901972653001401991653001802005653002602023653001102049653002802060100002202088700002602110700002002136856012902156       2022                        eng d  a1568-776700aGlance at the chemodiversity of Ocimum species: Trends, implications, and strategies for the quality and yield improvement of essential oil0 aGlance at the chemodiversity of Ocimum species Trends implicatio  cJUN  a879-9130 v213 a<p>
	Ocimum species represent commercially important medicinal and aromatic plants. The essential oil biosynthesized by Ocimum species is enriched with specialized metabolites specifically, terpenoids and phenylpropanoids. Interestingly, various Ocimum species are known to exhibit diverse chemical profiles, and this chemical diversity has been at the center of many studies to identify commercially important chemotypes. Here, we present various chemotypes from the Ocimum species and emphasize trends, implications, and strategies for the quality and yield improvement of essential oil. Globally, many Ocimum species have been analyzed for their essential oil composition in over 50 countries. Asia represents the highest number of chemotypes, followed by Africa, South America, and Europe. Ocimum basilicum L. has been the most widespread and well-studied species, followed by O. gratissimum L., O. tenuiflorum L., O. canum Sims, O. americanum and O. kilimandscharicum Gurke. Moreover, various molecular reasons, benefits, adverse health effects and mechanisms behind this vast chemodiversity have been discussed. Different strategies of plant breeding, metabolic engineering, transgenic, and tissue-culture, along with anatomical modifications, are surveyed to enhance specific chemotypic profiles and essential oil yield in numerous Ocimum species. Consequently, chemical characterization of the essential oil obtained from Ocimum species has become indispensable for its proper utilization. The present chemodiversity knowledge from Ocimum species will help to exploit various applications in the industrial, agriculture, biopharmaceutical, and food sectors.</p>
10aChemodiversity10aChemotype10aEssential oil10aMetabolic engineering10aOcimum10aSpecialized metabolites1 aGurav, Tanuja, P.1 aDholakia, Bhushan, B.1 aGiri, Ashok, P.  uhttps://library.ncl.res.in/content/glance-chemodiversity-ocimum-species-trends-implications-and-strategies-quality-and-yield