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Distributions of Microbial Activities in Deep Subseafloor Sediments

D'Hondt, Steven, Jørgensen, Bo Barker, Miller, D. Jay, Batzke, Anja, Blake, Ruth, Cragg, Barry Andrew, Cypionka, Heribert, Dickens, Gerald R., Ferdelman, Timothy, Hinrichs, Kai-Uwe, Holm, NIls G., Mitterer, Richard, Spivack, Arthur, Wang, Guizhi, Bekins, Barbara, Engelen, Bert, Ford, Kathyrn, Gettemy, Glen, Rutherford, Scott D., Sass, Henrik ORCID:, Skilbeck, C. Gregory, Aiello, Ivano W., Guèrin, Gilles, House, Chistopher H., Inagaki, Fumio, Meister, Patrick, Naehr, Thomas, Niitsuma, Sachiko, Parkes, Ronald John, Schippers, Axel, Smith, David C., Teske, Andreas, Wiegel, Juergen, Padilla, Christian Naranjo and Acosta, Juana Luz Solis 2004. Distributions of Microbial Activities in Deep Subseafloor Sediments. Science 306 (5705) , pp. 2216-2221. 10.1126/science.1101155

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Diverse 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.

Item Type: Article
Status: Published
Schools: Earth and Environmental Sciences
Subjects: Q Science > QE Geology
Q Science > QR Microbiology
ISSN: 0036-8075
Last Modified: 02 Dec 2022 11:44

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