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dc.contributor.authorBiche, S.U.
dc.contributor.authorDas, A.
dc.contributor.authorMascarenhas-Pereira, M.B.L.
dc.contributor.authorNath, B.N.
dc.contributor.authorNaik, Sonali
dc.contributor.authorHelekar, S.
dc.contributor.authorSharma, R.
dc.contributor.authorValsangkar, A.B.
dc.contributor.authorLokaBharathi, P.A.
dc.date.accessioned2017-09-27T13:09:58Z
dc.date.available2017-09-27T13:09:58Z
dc.date.issued2017
dc.identifier.citationGeomicrobiology Journal, vol.34(3); 2017; 274-288
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/5196
dc.description.abstractAlkaline phosphatase (ALP) is a hydrolase that releases phosphate, a crucial nutrient supporting formation of many macromolecules. The oligotrophic sediments of Central Indian Basin (CIB) were examined for the extent of ALP activity in 20 cores up to 20 cm depth along with other biogeochemical parameters. Northern and southern stations distinctly clustered based on pore water phosphorus (P) concentrations. ALP appeared more active in south due to more P and organic carbon (C) limitation. Central transition profiles revealed interesting mixed diagenetic and geothermal influence. Inter- and intrazonal differences suggest that broadly established paradigms applicable to water columns may deviate in space and time in sedimentary systems. Gross differences in redox status could govern differential response in ALP activity under similar hydrostatic pressure. Hydrothermal scavenging reactions striping soluble P from pore water might be widespread in CIB albeit at extreme low intensities. ALP might redissolve the precipitated P and make it reavailable to microbes
dc.language.isoen
dc.publisherTaylor & Francis Group
dc.rightsThe final and definitive form of the preprint has been published in the "Geomicrobiology Journal" © 2017 Taylor & Francis; "Geomicrobiology Journal" is available online at http://www.tandfonline.com/loi/ugmb20 with open URL of article : http://www.tandfonline.com/doi/abs/10.1080/01490451.2016.1190804. The term & condition associated with this preprint is at http://www.tandfonline.com/page/terms-and-conditions
dc.subjectGeology and geophysics
dc.subjectGeology and geophysics
dc.subjectMicrobiology
dc.subjectChemistry and biogeochemistry
dc.titleAlkaline phosphatase: An appraisal of its critical role in c-limited deep-sea sediments of central Indian Basin
dc.typeJournal Article


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