Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/49549
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dc.contributor.authorPadmanaban, Vishnu Priya-
dc.contributor.authorVerma, Pankaj-
dc.contributor.authorGopal, Dharani-
dc.contributor.authorSekar, Ashok Kumar-
dc.contributor.authorRamalingam, Kirubagaran-
dc.date.accessioned2019-08-01T05:11:07Z-
dc.date.available2019-08-01T05:11:07Z-
dc.date.issued2019-08-
dc.identifier.issn0975-1009 (Online); 0019-5189 (Print)-
dc.identifier.urihttp://nopr.niscair.res.in/handle/123456789/49549-
dc.description561-572en_US
dc.description.abstractDeep sea is an extreme environment which harbours diverse microbial communities. The deep sea ecosystem of the northeastern part of Indian Ocean is poorly studied. In this study, to explore the bacterial diversity of the unexplored environment, we designed culture independent (denaturant gradient gel electrophoresis DGGE) and culture dependent (16S rDNA) methods. The samples for this study were taken from the depths of 1850 m off Barren Island of the Andaman Sea, and 2000 and 1400 m off Chennai and Cudallore of the Bay of Bengal. The phylogenetic analysis, based on 16S rDNA sequence data, has suggests their affiliation to three major phyla viz. Firmicutes (48%), Proteobacteria (30%, alpha and gamma-class) and Actinobacteria (22%). Bacillus was the most frequently isolated genus. This is the first report on the isolation of Brucella, Fictibacillus, Mesorhizobium and Cobetia spp. from deep sea sediments. Eleven of the 34 operational taxonomic units probably represents new species. To investigate the metabolic potential, the isolates were screened for production of the extracellular hydrolytic enzyme and antibacterial compound. Almost 91% of isolates showed production of at least one of the extracellular hydrolytic enzymes, such as caesinase, alpha-amylase, urease, gelatinase, lipase and DNase. Streptomyces was the only genus which showed antibacterial activity. This study highlights that the examined deep sea environment could be a hot spot for microbial derived natural products.en_US
dc.language.isoen_USen_US
dc.publisherNISCAIR-CSIR, Indiaen_US
dc.rights CC Attribution-Noncommercial-No Derivative Works 2.5 Indiaen_US
dc.sourceIJEB Vol.57(08) [August 2019]en_US
dc.subjectAntibacterialen_US
dc.subjectDeep sea Bacteriaen_US
dc.subjectDGGEen_US
dc.subjectExtracellular hydrolytic enzymesen_US
dc.subjectMetagenomic DNAen_US
dc.subjectStreptomycesen_US
dc.titlePhylogenetic identification and metabolic potential of bacteria isolated from deep sea sediments of Bay of Bengal and Andaman Seaen_US
dc.typeArticleen_US
Appears in Collections:IJEB Vol.57(08) [August 2019]

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