A constant flux of diverse thermophilic bacteria into the cold arctic seabed
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 su...
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2009
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Online Access: | https://pure.au.dk/portal/da/publications/a-constant-flux-of-diverse-thermophilic-bacteria-into-the-cold-arctic-seabed(3095acb0-ae6c-11de-a554-000ea68e967b).html https://doi.org/10.1126/science.1174012 https://pure.au.dk/ws/files/47796052/Hubert_etal_A_constant_flux_of_diverse_thermophilic_bact_into_the_cold_arctic_seabed_Science_2009.pdf http://www.sciencemag.org/content/325/5947/1541.full |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/3095acb0-ae6c-11de-a554-000ea68e967b 2023-05-15T14:25:59+02:00 A constant flux of diverse thermophilic bacteria into the cold arctic seabed Hubert, Casey Loy, Alexander Nickel, Maren Arnosti, Carol Baranyi, Christian Brüchert, Volker Ferdelman, Timothy Finster, Kai Christensen, Flemming Mønsted Rezende, Julia Rosa de Vandieken, Verona Jørgensen, Bo Barker 2009-09-18 application/pdf https://pure.au.dk/portal/da/publications/a-constant-flux-of-diverse-thermophilic-bacteria-into-the-cold-arctic-seabed(3095acb0-ae6c-11de-a554-000ea68e967b).html https://doi.org/10.1126/science.1174012 https://pure.au.dk/ws/files/47796052/Hubert_etal_A_constant_flux_of_diverse_thermophilic_bact_into_the_cold_arctic_seabed_Science_2009.pdf http://www.sciencemag.org/content/325/5947/1541.full eng eng info:eu-repo/semantics/restrictedAccess Hubert , C , Loy , A , Nickel , M , Arnosti , C , Baranyi , C , Brüchert , V , Ferdelman , T , Finster , K , Christensen , F M , Rezende , J R D , Vandieken , V & Jørgensen , B B 2009 , ' A constant flux of diverse thermophilic bacteria into the cold arctic seabed ' , Science , vol. 325 , pp. 1541-1544 . https://doi.org/10.1126/science.1174012 article 2009 ftuniaarhuspubl https://doi.org/10.1126/science.1174012 2022-02-09T23:49:39Z 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 10 8 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. Article in Journal/Newspaper Arctic Arctic Aarhus University: Research Arctic Science 325 5947 1541 1544 |
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Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
description |
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 10 8 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. |
format |
Article in Journal/Newspaper |
author |
Hubert, Casey Loy, Alexander Nickel, Maren Arnosti, Carol Baranyi, Christian Brüchert, Volker Ferdelman, Timothy Finster, Kai Christensen, Flemming Mønsted Rezende, Julia Rosa de Vandieken, Verona Jørgensen, Bo Barker |
spellingShingle |
Hubert, Casey Loy, Alexander Nickel, Maren Arnosti, Carol Baranyi, Christian Brüchert, Volker Ferdelman, Timothy Finster, Kai Christensen, Flemming Mønsted Rezende, Julia Rosa de Vandieken, Verona Jørgensen, Bo Barker A constant flux of diverse thermophilic bacteria into the cold arctic seabed |
author_facet |
Hubert, Casey Loy, Alexander Nickel, Maren Arnosti, Carol Baranyi, Christian Brüchert, Volker Ferdelman, Timothy Finster, Kai Christensen, Flemming Mønsted Rezende, Julia Rosa de Vandieken, Verona Jørgensen, Bo Barker |
author_sort |
Hubert, Casey |
title |
A constant flux of diverse thermophilic bacteria into the cold arctic seabed |
title_short |
A constant flux of diverse thermophilic bacteria into the cold arctic seabed |
title_full |
A constant flux of diverse thermophilic bacteria into the cold arctic seabed |
title_fullStr |
A constant flux of diverse thermophilic bacteria into the cold arctic seabed |
title_full_unstemmed |
A constant flux of diverse thermophilic bacteria into the cold arctic seabed |
title_sort |
constant flux of diverse thermophilic bacteria into the cold arctic seabed |
publishDate |
2009 |
url |
https://pure.au.dk/portal/da/publications/a-constant-flux-of-diverse-thermophilic-bacteria-into-the-cold-arctic-seabed(3095acb0-ae6c-11de-a554-000ea68e967b).html https://doi.org/10.1126/science.1174012 https://pure.au.dk/ws/files/47796052/Hubert_etal_A_constant_flux_of_diverse_thermophilic_bact_into_the_cold_arctic_seabed_Science_2009.pdf http://www.sciencemag.org/content/325/5947/1541.full |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic |
genre_facet |
Arctic Arctic |
op_source |
Hubert , C , Loy , A , Nickel , M , Arnosti , C , Baranyi , C , Brüchert , V , Ferdelman , T , Finster , K , Christensen , F M , Rezende , J R D , Vandieken , V & Jørgensen , B B 2009 , ' A constant flux of diverse thermophilic bacteria into the cold arctic seabed ' , Science , vol. 325 , pp. 1541-1544 . https://doi.org/10.1126/science.1174012 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1126/science.1174012 |
container_title |
Science |
container_volume |
325 |
container_issue |
5947 |
container_start_page |
1541 |
op_container_end_page |
1544 |
_version_ |
1766298475046109184 |