Biogeography of microbial communities in high‐latitude ecosystems: Contrasting drivers for methanogens, methanotrophs and global prokaryotes
Abstract Methane‐cycling is becoming more important in high‐latitude ecosystems as global warming makes permafrost organic carbon increasingly available. We explored 387 samples from three high‐latitudes regions (Siberia, Alaska and Patagonia) focusing on mineral/organic soils (wetlands, peatlands,...
Published in: | Environmental Microbiology |
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Online Access: | http://dx.doi.org/10.1111/1462-2920.16526 |
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crwiley:10.1111/1462-2920.16526 2024-09-15T18:30:06+00:00 Biogeography of microbial communities in high‐latitude ecosystems: Contrasting drivers for methanogens, methanotrophs and global prokaryotes Seppey, Christophe V. W. Cabrol, Léa Thalasso, Frederic Gandois, Laure Lavergne, Céline Martinez‐Cruz, Karla Sepulveda‐Jauregui, Armando Aguilar‐Muñoz, Polette Astorga‐España, María Soledad Chamy, Rolando Dellagnezze, Bruna Martins Etchebehere, Claudia Fochesatto, Gilberto J. Gerardo‐Nieto, Oscar Mansilla, Andrés Murray, Alison Sweetlove, Maxime Tananaev, Nikita Teisserenc, Roman Tveit, Alexander T. Van de Putte, Anton Svenning, Mette M. Barret, Maialen Consejo Nacional de Ciencia y Tecnología Agencia Nacional de Investigación y Desarrollo 2023 http://dx.doi.org/10.1111/1462-2920.16526 en eng Wiley http://creativecommons.org/licenses/by-nc/4.0/ Environmental Microbiology volume 25, issue 12, page 3364-3386 ISSN 1462-2912 1462-2920 journal-article 2023 crwiley https://doi.org/10.1111/1462-2920.16526 2024-08-30T04:08:52Z Abstract Methane‐cycling is becoming more important in high‐latitude ecosystems as global warming makes permafrost organic carbon increasingly available. We explored 387 samples from three high‐latitudes regions (Siberia, Alaska and Patagonia) focusing on mineral/organic soils (wetlands, peatlands, forest), lake/pond sediment and water. Physicochemical, climatic and geographic variables were integrated with 16S rDNA amplicon sequences to determine the structure of the overall microbial communities and of specific methanogenic and methanotrophic guilds. Physicochemistry (especially pH) explained the largest proportion of variation in guild composition, confirming species sorting (i.e., environmental filtering) as a key mechanism in microbial assembly. Geographic distance impacted more strongly beta diversity for (i) methanogens and methanotrophs than the overall prokaryotes and, (ii) the sediment habitat, suggesting that dispersal limitation contributed to shape the communities of methane‐cycling microorganisms. Bioindicator taxa characterising different ecological niches (i.e., specific combinations of geographic, climatic and physicochemical variables) were identified, highlighting the importance of Methanoregula as generalist methanogens. Methylocystis and Methylocapsa were key methanotrophs in low pH niches while Methylobacter and Methylomonadaceae in neutral environments. This work gives insight into the present and projected distribution of methane‐cycling microbes at high latitudes under climate change predictions, which is crucial for constraining their impact on greenhouse gas budgets. Article in Journal/Newspaper permafrost Alaska Siberia Wiley Online Library Environmental Microbiology |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Methane‐cycling is becoming more important in high‐latitude ecosystems as global warming makes permafrost organic carbon increasingly available. We explored 387 samples from three high‐latitudes regions (Siberia, Alaska and Patagonia) focusing on mineral/organic soils (wetlands, peatlands, forest), lake/pond sediment and water. Physicochemical, climatic and geographic variables were integrated with 16S rDNA amplicon sequences to determine the structure of the overall microbial communities and of specific methanogenic and methanotrophic guilds. Physicochemistry (especially pH) explained the largest proportion of variation in guild composition, confirming species sorting (i.e., environmental filtering) as a key mechanism in microbial assembly. Geographic distance impacted more strongly beta diversity for (i) methanogens and methanotrophs than the overall prokaryotes and, (ii) the sediment habitat, suggesting that dispersal limitation contributed to shape the communities of methane‐cycling microorganisms. Bioindicator taxa characterising different ecological niches (i.e., specific combinations of geographic, climatic and physicochemical variables) were identified, highlighting the importance of Methanoregula as generalist methanogens. Methylocystis and Methylocapsa were key methanotrophs in low pH niches while Methylobacter and Methylomonadaceae in neutral environments. This work gives insight into the present and projected distribution of methane‐cycling microbes at high latitudes under climate change predictions, which is crucial for constraining their impact on greenhouse gas budgets. |
author2 |
Consejo Nacional de Ciencia y Tecnología Agencia Nacional de Investigación y Desarrollo |
format |
Article in Journal/Newspaper |
author |
Seppey, Christophe V. W. Cabrol, Léa Thalasso, Frederic Gandois, Laure Lavergne, Céline Martinez‐Cruz, Karla Sepulveda‐Jauregui, Armando Aguilar‐Muñoz, Polette Astorga‐España, María Soledad Chamy, Rolando Dellagnezze, Bruna Martins Etchebehere, Claudia Fochesatto, Gilberto J. Gerardo‐Nieto, Oscar Mansilla, Andrés Murray, Alison Sweetlove, Maxime Tananaev, Nikita Teisserenc, Roman Tveit, Alexander T. Van de Putte, Anton Svenning, Mette M. Barret, Maialen |
spellingShingle |
Seppey, Christophe V. W. Cabrol, Léa Thalasso, Frederic Gandois, Laure Lavergne, Céline Martinez‐Cruz, Karla Sepulveda‐Jauregui, Armando Aguilar‐Muñoz, Polette Astorga‐España, María Soledad Chamy, Rolando Dellagnezze, Bruna Martins Etchebehere, Claudia Fochesatto, Gilberto J. Gerardo‐Nieto, Oscar Mansilla, Andrés Murray, Alison Sweetlove, Maxime Tananaev, Nikita Teisserenc, Roman Tveit, Alexander T. Van de Putte, Anton Svenning, Mette M. Barret, Maialen Biogeography of microbial communities in high‐latitude ecosystems: Contrasting drivers for methanogens, methanotrophs and global prokaryotes |
author_facet |
Seppey, Christophe V. W. Cabrol, Léa Thalasso, Frederic Gandois, Laure Lavergne, Céline Martinez‐Cruz, Karla Sepulveda‐Jauregui, Armando Aguilar‐Muñoz, Polette Astorga‐España, María Soledad Chamy, Rolando Dellagnezze, Bruna Martins Etchebehere, Claudia Fochesatto, Gilberto J. Gerardo‐Nieto, Oscar Mansilla, Andrés Murray, Alison Sweetlove, Maxime Tananaev, Nikita Teisserenc, Roman Tveit, Alexander T. Van de Putte, Anton Svenning, Mette M. Barret, Maialen |
author_sort |
Seppey, Christophe V. W. |
title |
Biogeography of microbial communities in high‐latitude ecosystems: Contrasting drivers for methanogens, methanotrophs and global prokaryotes |
title_short |
Biogeography of microbial communities in high‐latitude ecosystems: Contrasting drivers for methanogens, methanotrophs and global prokaryotes |
title_full |
Biogeography of microbial communities in high‐latitude ecosystems: Contrasting drivers for methanogens, methanotrophs and global prokaryotes |
title_fullStr |
Biogeography of microbial communities in high‐latitude ecosystems: Contrasting drivers for methanogens, methanotrophs and global prokaryotes |
title_full_unstemmed |
Biogeography of microbial communities in high‐latitude ecosystems: Contrasting drivers for methanogens, methanotrophs and global prokaryotes |
title_sort |
biogeography of microbial communities in high‐latitude ecosystems: contrasting drivers for methanogens, methanotrophs and global prokaryotes |
publisher |
Wiley |
publishDate |
2023 |
url |
http://dx.doi.org/10.1111/1462-2920.16526 |
genre |
permafrost Alaska Siberia |
genre_facet |
permafrost Alaska Siberia |
op_source |
Environmental Microbiology volume 25, issue 12, page 3364-3386 ISSN 1462-2912 1462-2920 |
op_rights |
http://creativecommons.org/licenses/by-nc/4.0/ |
op_doi |
https://doi.org/10.1111/1462-2920.16526 |
container_title |
Environmental Microbiology |
_version_ |
1810471587447570432 |