Characterization of multidrug resistance in Vibriospecies isolated from marine invertebrates from Andaman Sea

TitleCharacterization of multidrug resistance in Vibriospecies isolated from marine invertebrates from Andaman Sea
Publication TypeJournal Article
Year of Publication2020
AuthorsKumari, P, Poddar, A, Das, SK
Journal3 Biotech
Volume10
Issue10
Pagination456
Date PublishedSEP
Type of ArticleArticle
ISSN2190-572X
KeywordsDrug-resistant, Genetic diversity, marine invertebrate, Multilocus sequence analysis, Vibrio
Abstract

This study describes the abundance of multidrug-resistantVibriosassociated with marine invertebrate hosts from the Andaman Sea, India. Thirty-eightVibriostrains were isolated from surface mucus layers of coralPorites,Goniastrea, Pocillopora, Fungia, and eggs of spiny lobster (Panulirus penicillatus). Phenotypically, the majority of strains exhibited growth at a wide range of temperatures, salt tolerance, and diverse nutritional requirements. All the strains had more than 97% 16S rRNA sequence similarity with type species of the genusVibriowhereVibrio fortis, andVibrio alginolyticuswere predominant. Multilocus Sequence Analysis (MLSA) using eight housekeeping genes namelyftsZ,gapA,gyrB,mreB,pyrH,recA,rpoA,andtopAdistributed the strains into 6 reported clades i.e.,Harveyi, Ponticus, Nereis, Orientalis, Splendidus,andMediterraneiwhere nearly half of the total strains represented the cladeHarveyi, followed by the cladeSplendidus.Likewise, the PFGE profile indicated genomic heterogeneity among the strains resulting in their distribution in five major clusters. Resistance to different antimicrobials was tested following the disc diffusion method where all strains were found susceptible to chloramphenicol (30 mu g) and resistant to streptomycin (10 mu g), vancomycin (30 mu g), sulfamethoxazole-trimethoprim (25 mu g). Moreover, the resistant phenotype to other antimicrobials confirmed the abundance of multidrug resistance strains in this marine environment.

DOI10.1007/s13205-020-02445-5
Type of Journal (Indian or Foreign)

Foreign

Impact Factor (IF)

1.798

Divison category: 
Biochemical Sciences

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