Permafrost microbial communities and functional genes are structured by latitudinal and soil geochemical gradients
Abstract Permafrost underlies approximately one quarter of Northern Hemisphere terrestrial surfaces and contains 25–50% of the global soil carbon (C) pool. Permafrost soils and the C stocks within are vulnerable to ongoing and future projected climate warming. The biogeography of microbial communiti...
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2023
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Online Access: | http://dx.doi.org/10.1038/s41396-023-01429-6 https://www.nature.com/articles/s41396-023-01429-6.pdf https://www.nature.com/articles/s41396-023-01429-6 https://academic.oup.com/ismej/article-pdf/17/8/1224/55362957/41396_2023_article_1429.pdf |
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croxfordunivpr:10.1038/s41396-023-01429-6 2024-06-23T07:56:02+00:00 Permafrost microbial communities and functional genes are structured by latitudinal and soil geochemical gradients Waldrop, Mark P Chabot, Christopher L Liebner, Susanne Holm, Stine Snyder, Michael W Dillon, Megan Dudgeon, Steven R Douglas, Thomas A Leewis, Mary-Cathrine Walter Anthony, Katey M McFarland, Jack W Arp, Christopher D Bondurant, Allen C Taş, Neslihan Mackelprang, Rachel 2023 http://dx.doi.org/10.1038/s41396-023-01429-6 https://www.nature.com/articles/s41396-023-01429-6.pdf https://www.nature.com/articles/s41396-023-01429-6 https://academic.oup.com/ismej/article-pdf/17/8/1224/55362957/41396_2023_article_1429.pdf en eng Oxford University Press (OUP) https://creativecommons.org/licenses/by/4.0/ https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 The ISME Journal volume 17, issue 8, page 1224-1235 ISSN 1751-7362 1751-7370 journal-article 2023 croxfordunivpr https://doi.org/10.1038/s41396-023-01429-6 2024-06-11T04:21:17Z Abstract Permafrost underlies approximately one quarter of Northern Hemisphere terrestrial surfaces and contains 25–50% of the global soil carbon (C) pool. Permafrost soils and the C stocks within are vulnerable to ongoing and future projected climate warming. The biogeography of microbial communities inhabiting permafrost has not been examined beyond a small number of sites focused on local-scale variation. Permafrost is different from other soils. Perennially frozen conditions in permafrost dictate that microbial communities do not turn over quickly, thus possibly providing strong linkages to past environments. Thus, the factors structuring the composition and function of microbial communities may differ from patterns observed in other terrestrial environments. Here, we analyzed 133 permafrost metagenomes from North America, Europe, and Asia. Permafrost biodiversity and taxonomic distribution varied in relation to pH, latitude and soil depth. The distribution of genes differed by latitude, soil depth, age, and pH. Genes that were the most highly variable across all sites were associated with energy metabolism and C-assimilation. Specifically, methanogenesis, fermentation, nitrate reduction, and replenishment of citric acid cycle intermediates. This suggests that adaptations to energy acquisition and substrate availability are among some of the strongest selective pressures shaping permafrost microbial communities. The spatial variation in metabolic potential has primed communities for specific biogeochemical processes as soils thaw due to climate change, which could cause regional- to global- scale variation in C and nitrogen processing and greenhouse gas emissions. Article in Journal/Newspaper permafrost Oxford University Press The ISME Journal 17 8 1224 1235 |
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Open Polar |
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Oxford University Press |
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croxfordunivpr |
language |
English |
description |
Abstract Permafrost underlies approximately one quarter of Northern Hemisphere terrestrial surfaces and contains 25–50% of the global soil carbon (C) pool. Permafrost soils and the C stocks within are vulnerable to ongoing and future projected climate warming. The biogeography of microbial communities inhabiting permafrost has not been examined beyond a small number of sites focused on local-scale variation. Permafrost is different from other soils. Perennially frozen conditions in permafrost dictate that microbial communities do not turn over quickly, thus possibly providing strong linkages to past environments. Thus, the factors structuring the composition and function of microbial communities may differ from patterns observed in other terrestrial environments. Here, we analyzed 133 permafrost metagenomes from North America, Europe, and Asia. Permafrost biodiversity and taxonomic distribution varied in relation to pH, latitude and soil depth. The distribution of genes differed by latitude, soil depth, age, and pH. Genes that were the most highly variable across all sites were associated with energy metabolism and C-assimilation. Specifically, methanogenesis, fermentation, nitrate reduction, and replenishment of citric acid cycle intermediates. This suggests that adaptations to energy acquisition and substrate availability are among some of the strongest selective pressures shaping permafrost microbial communities. The spatial variation in metabolic potential has primed communities for specific biogeochemical processes as soils thaw due to climate change, which could cause regional- to global- scale variation in C and nitrogen processing and greenhouse gas emissions. |
format |
Article in Journal/Newspaper |
author |
Waldrop, Mark P Chabot, Christopher L Liebner, Susanne Holm, Stine Snyder, Michael W Dillon, Megan Dudgeon, Steven R Douglas, Thomas A Leewis, Mary-Cathrine Walter Anthony, Katey M McFarland, Jack W Arp, Christopher D Bondurant, Allen C Taş, Neslihan Mackelprang, Rachel |
spellingShingle |
Waldrop, Mark P Chabot, Christopher L Liebner, Susanne Holm, Stine Snyder, Michael W Dillon, Megan Dudgeon, Steven R Douglas, Thomas A Leewis, Mary-Cathrine Walter Anthony, Katey M McFarland, Jack W Arp, Christopher D Bondurant, Allen C Taş, Neslihan Mackelprang, Rachel Permafrost microbial communities and functional genes are structured by latitudinal and soil geochemical gradients |
author_facet |
Waldrop, Mark P Chabot, Christopher L Liebner, Susanne Holm, Stine Snyder, Michael W Dillon, Megan Dudgeon, Steven R Douglas, Thomas A Leewis, Mary-Cathrine Walter Anthony, Katey M McFarland, Jack W Arp, Christopher D Bondurant, Allen C Taş, Neslihan Mackelprang, Rachel |
author_sort |
Waldrop, Mark P |
title |
Permafrost microbial communities and functional genes are structured by latitudinal and soil geochemical gradients |
title_short |
Permafrost microbial communities and functional genes are structured by latitudinal and soil geochemical gradients |
title_full |
Permafrost microbial communities and functional genes are structured by latitudinal and soil geochemical gradients |
title_fullStr |
Permafrost microbial communities and functional genes are structured by latitudinal and soil geochemical gradients |
title_full_unstemmed |
Permafrost microbial communities and functional genes are structured by latitudinal and soil geochemical gradients |
title_sort |
permafrost microbial communities and functional genes are structured by latitudinal and soil geochemical gradients |
publisher |
Oxford University Press (OUP) |
publishDate |
2023 |
url |
http://dx.doi.org/10.1038/s41396-023-01429-6 https://www.nature.com/articles/s41396-023-01429-6.pdf https://www.nature.com/articles/s41396-023-01429-6 https://academic.oup.com/ismej/article-pdf/17/8/1224/55362957/41396_2023_article_1429.pdf |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
The ISME Journal volume 17, issue 8, page 1224-1235 ISSN 1751-7362 1751-7370 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_doi |
https://doi.org/10.1038/s41396-023-01429-6 |
container_title |
The ISME Journal |
container_volume |
17 |
container_issue |
8 |
container_start_page |
1224 |
op_container_end_page |
1235 |
_version_ |
1802648881848123392 |