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A constant flux of ...
A constant flux of diverse thermophilic bacteria into the cold Arctic seabed
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- Hubert, Casey (author)
- Max-Planck Institute for marine Microbiology,Biogeochemistry Group
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- Loy, Alexander (author)
- Department of Microbial Ecology, University of Vienna
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- Nickel, Maren (author)
- Max-Planck Institute for marine Microbiology,Biogeochemistry Group
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- Arnosti, Carol (author)
- Deparment of Marine Sciences, University of North Carolina Chapel Hill
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- Baranyi, Christian (author)
- Department of Microbial Ecology, University of Vienna
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- Brüchert, Volker, 1965- (author)
- Stockholms universitet,Institutionen för geologi och geokemi,Geochemistry
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- Ferdelman, Timothy (author)
- Max-Planck Institute for marine Microbiology,Biogeochemistry Group
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- Finster, Kai (author)
- Department of Biological Sciences, Arhus University
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- de Rezende, Julia Rosa (author)
- Center for Geomicrobiology, Arhus University
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- Vandieken, Verona (author)
- Max-Planck Institute for Marine Microbiology,Biogeochemistry Group
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- Jørgensen, Bo Barker (author)
- Center for Geomicrobiology, Arhus University
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(creator_code:org_t)
- Washington : AAAS, 2009
- 2009
- English.
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In: Science. - Washington : AAAS. - 0036-8075 .- 1095-9203. ; 325:18, s. 1541-1544
- Related links:
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https://pure.au.dk/w...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- Microorganisms have been repeatedly discovered in environments that do not support their metabolic activity. Identifying and quantifying these misplaced organisms can reveal dispersal mechanisms that shape natural microbial diversity. Using endospore germination experiments, we estimated a stable supply of thermophilic bacteria into permanently cold Arctic marine sediment at a rate exceeding 108 spores per square meter per year. These metabolically and phylogenetically diverse Firmicutes show no detectable activity at cold in situ temperatures but rapidly mineralize organic matter by hydrolysis, fermentation, and sulfate reduction upon induction at 50°C. The closest relatives to these bacteria come from warm subsurface petroleum reservoir and ocean crust ecosystems, suggesting that seabed fluid flow from these environments is delivering thermophiles to the cold ocean. These transport pathways may broadly influence microbial community composition in the marine environment.
Subject headings
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Mikrobiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Microbiology (hsv//eng)
Keyword
- Marine ecology
- Marin ekologi
- Microbiology
- Mikrobiologi
- mikrobiologi
- Microbiology
- Biogeochemistry
- biogeokemi
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- ref (subject category)
- art (subject category)
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- By the author/editor
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Hubert, Casey
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Loy, Alexander
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Nickel, Maren
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Arnosti, Carol
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Baranyi, Christi ...
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Brüchert, Volker ...
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show more...
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Ferdelman, Timot ...
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Finster, Kai
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de Rezende, Juli ...
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Vandieken, Veron ...
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Jørgensen, Bo Ba ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Ecology
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Microbiology
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Science
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Stockholm University