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dc.contributor.authorGawas, V.S.
dc.contributor.authorMamatha, S.S.
dc.contributor.authorDamare, S.R.
dc.contributor.authorPujitha, D.
dc.contributor.authorMeena, R.M.
dc.contributor.authorShenoy, B.D.
dc.date.accessioned2019-12-31
dc.date.accessioned2020-02-04T09:38:21Z
dc.date.available2019-12-01
dc.date.available2020-02-04T09:38:21Z
dc.date.issued2019
dc.identifier.citationScientific Reports, vol.9(1); 2019; Article no: 9403
dc.identifier.urihttps://doi.org/10.1038/s41598-019-45792-x
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/8228
dc.description.abstractSedimentary bacteria play a role in polymetallic nodule formation and growth. There are, however, limited reports on bacterial diversity in nodule-rich areas of the Central Indian Ocean Basin (CIOB). In this study, bacterial abundance in thirteen sediment cores collected from the CIOB was enumerated, followed by phylogenetic characterisation and, screening of select heterotrophic bacteria for extracellular enzyme activities. Total bacterial counts (TBC) were in the order of 107 cells g-1; there was a significant difference (p > 0.05) among the cores but not within the sub-sections of the cores. The retrievable heterotrophic counts ranged from non-detectable to 5.33 x 105 g-1; the heterotrophic bacteria clustered within the phyla Firmicutes, Proteobacteria and Actinobacteria. Bacillus was the most abundant genus. The extracellular enzyme activities were in the order: amylase > lipase > protease > phosphatase > Dnase > urease. Major findings are compared with previous studies from the CIOB and other areas.
dc.languageen
dc.relation.isreferencedbySCI
dc.rightsOnly the author version of the copright reserved papers uploaded. Contact drs@nio.org for any complaints regarding copyright violations
dc.titleDiversity and extracellular enzyme activities of heterotrophic bacteria from sediments of the Central Indian Ocean Basin
dc.typeJournal Article


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