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- Beulig, F. (author)
Rapid metabolism fosters microbial survival in the deep, hot subseafloor biosphere
- Article/chapterEnglish2022
Publisher, publication year, extent ...
- 2022-01-25
- Springer Science and Business Media LLC,2022
Numbers
- LIBRIS-ID:oai:gup.ub.gu.se/313566
- https://gup.ub.gu.se/publication/313566URI
- https://doi.org/10.1038/s41467-021-27802-7DOI
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- Language:English
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- SwePubSwePub
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Notes
- A fourth of the global seabed sediment volume is buried at depths where temperatures exceed 80 °C, a previously proposed thermal barrier for life in the subsurface. Here, we demonstrate, utilizing an extensive suite of radiotracer experiments, the prevalence of active methanogenic and sulfate-reducing populations in deeply buried marine sediment from the Nankai Trough subduction zone, heated to extreme temperature (up to ~120 °C). The small microbial community subsisted with high potential cell-specific rates of energy metabolism, which approach the rates of active surface sediments and laboratory cultures. Our discovery is in stark contrast to the extremely low metabolic rates otherwise observed in the deep subseafloor. As cells appear to invest most of their energy to repair thermal cell damage in the hot sediment, they are forced to balance delicately between subsistence near the upper temperature limit for life and a rich supply of substrates and energy from thermally driven reactions of the sedimentary organic matter. © 2022, The Author(s).
Subject headings and genre
- NATURVETENSKAP Biologi Ekologi hsv//swe
- NATURAL SCIENCES Biological Sciences Ecology hsv//eng
- biosphere
- marine sediment
- metabolism
- methanogenic bacterium
- microbial community
- subsistence
- China
- Nankai
- Nankai Trough
- Pacific Ocean
- Tianjin
Added entries (persons, corporate bodies, meetings, titles ...)
- Schubert, F. (author)
- Adhikari, R. R. (author)
- Glombitza, C. (author)
- Heuer, V. B. (author)
- Hinrichs, K. U. (author)
- Homola, K. L. (author)
- Inagaki, F. (author)
- Jørgensen, B. B. (author)
- Kallmeyer, J. (author)
- Krause, S. J. E. (author)
- Morono, Y. (author)
- Sauvage, JustineGothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper,Department of marine sciences(Swepub:gu)xsauju (author)
- Spivack, A. J. (author)
- Treude, T. (author)
- Göteborgs universitetInstitutionen för marina vetenskaper (creator_code:org_t)
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- In:Nature Communications: Springer Science and Business Media LLC13:12041-1723
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- Homola, K. L.
- Inagaki, F.
- Jørgensen, B. B.
- Kallmeyer, J.
- Krause, S. J. E.
- Morono, Y.
- Sauvage, Justine
- Spivack, A. J.
- Treude, T.
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