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dc.contributor.authorSujith, P.P.
dc.contributor.authorSheba, M.
dc.contributor.authorGonsalves, M.J.B.D.
dc.date.accessioned2016-06-14T06:57:09Z
dc.date.available2016-06-14T06:57:09Z
dc.date.issued2016
dc.identifier.citationCurrent Science, vol.110(9); 2016; 1801-1809
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/4978
dc.description.abstractThe present study assesses the distribution, diversity and activity of aerobic methanotrophic related bacteria (MRB) dwelling in Krishna-Godavari (KG) basin, India. The counts of MRB ranged from non-detectable(ND) to 8.6 Ã- 10<sup>4</sup> CFU gram dry weight of the sediment, with maximum counts at 24.2 m below seafloor. Greater methanotrophic bacterial abundance was at the surface/subsurface sediments of the core at station MD161-8 than at the bottom sediments. Identification of these isolates by 16S rDNA sequence analysis showed their taxonomic affiliation to Alcanivorax, Methylophaga, Marinobacter, Joostella, Methylobacterium, Desulfovibrio species and other uncultured bacterial clones. The isolates grew under optimum pH of 8, temperature of 28degreeC and salinity of 35, and on different carbon sources like yeast extract, D-glucose, ethanol and methanol. The addition of nitrogen sources like amino acids and yeast extract improved methanotrophic activity by the isolates. These results add to our understanding of MRB and their activity in modulating the emission of methane from gas hydrate -rich ecosystems like the KG basin
dc.language.isoen
dc.publisherCurrent Science Association
dc.rightsCopyright [2016]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
dc.subjectMICROBIOLOGY::General
dc.subjectGEOLOGY AND GEOPHYSICS::Sediments and sedimentation
dc.subjectAQUATIC ECOLOGY, PRODUCTIVITY::Ecosystems and energetics
dc.subjectMICROBIOLOGY::Geographic distribution
dc.subjectMICROBIOLOGY::Taxonomy and morphology
dc.subjectMICROBIOLOGY::Genetics and evolution
dc.titleDiversity and activity of methanotrophic related bacteria in subsurface sediments of the Krishna-Godavari Basin, India
dc.typeJournal Article


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