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Distributions of microbial activities in deep subseafloor sedimentsDiverse microbial communities and numerous energy-yielding activities occur in deeply buried sediments of the eastern Pacific Ocean. Distributions of metabolic activities often deviate from the standard model. Rates of activities, cell concentrations, and populations of cultured bacteria vary consistently from one subseafloor environment to another. Net rates of major activities principally rely on electron acceptors and electron donors from the photosynthetic surface world. At open-ocean sites, nitrate and oxygen are supplied to the deepest sedimentary communities through the underlying basaltic aquifer. In turn, these sedimentary communities may supply dissolved electron donors and nutrients to the underlying crustal biosphere.
Document ID
20050148291
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
D'Hondt, Steven
(NASA Headquarters Washington, DC United States)
Jorgensen, Bo Barker
Miller, D. Jay
Batzke, Anja
Blake, Ruth
Cragg, Barry A.
Cypionka, Heribert
Dickens, Gerald R.
Ferdelman, Timothy
Hinrichs, Kai-Uwe
Holm, Nils G.
Mitterer, Richard
Spivack, Arthur
Wang, Guizhi
Bekins, Barbara
Engelen, Bert
Ford, Kathryn
Gettemy, Glen
Rutherford, Scott D.
Sass, Henrik
Skilbeck, C. Gregory
Aiello, Ivano W.
Guerin, Gilles
House, Christopher H.
Inagaki, Fumio
Date Acquired
August 23, 2013
Publication Date
December 24, 2004
Publication Information
Publication: Science
Volume: 306
Issue: 5705
ISSN: 0036-8075
Subject Category
Life Sciences (General)
Distribution Limits
Public
Copyright
Other

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