Permafrost thaw with warming reduces microbial metabolic capacities in subsurface soils
Abstract Microorganisms are major constituents of the total biomass in permafrost regions, whose underlain soils are frozen for at least two consecutive years. To understand potential microbial responses to climate change, here we examined microbial community compositions and functional capacities a...
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crwiley:10.1111/mec.16319 2024-03-24T09:04:40+00:00 Permafrost thaw with warming reduces microbial metabolic capacities in subsurface soils Wu, Linwei Yang, Felix Feng, Jiajie Tao, Xuanyu Qi, Qi Wang, Cong Schuur, Edward A. G. Bracho, Rosvel Huang, Yi Cole, James R. Tiedje, James M. Zhou, Jizhong Office of Science 2021 http://dx.doi.org/10.1111/mec.16319 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.16319 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/mec.16319 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/mec.16319 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor Molecular Ecology volume 31, issue 5, page 1403-1415 ISSN 0962-1083 1365-294X Genetics Ecology, Evolution, Behavior and Systematics journal-article 2021 crwiley https://doi.org/10.1111/mec.16319 2024-02-28T02:19:59Z Abstract Microorganisms are major constituents of the total biomass in permafrost regions, whose underlain soils are frozen for at least two consecutive years. To understand potential microbial responses to climate change, here we examined microbial community compositions and functional capacities across four soil depths in an Alaska tundra site. We showed that a 5‐year warming treatment increased soil thaw depth by 25.7% ( p = .011) within the deep organic layer (15–25 cm). Concurrently, warming reduced 37% of bacterial abundance and 64% of fungal abundances in the deep organic layer, while it did not affect microbial abundance in other soil layers (i.e., 0–5, 5–15, and 45–55 cm). Warming treatment altered fungal community composition and microbial functional structure ( p < .050), but not bacterial community composition. Using a functional gene array, we found that the relative abundances of a variety of carbon (C)‐decomposing, iron‐reducing, and sulphate‐reducing genes in the deep organic layer were decreased, which was not observed by the shotgun sequencing‐based metagenomics analysis of those samples. To explain the reduced metabolic capacities, we found that warming treatment elicited higher deterministic environmental filtering, which could be linked to water‐saturated time, soil moisture, and soil thaw duration. In contrast, plant factors showed little influence on microbial communities in subsurface soils below 15 cm, despite a 25.2% higher ( p < .05) aboveground plant biomass by warming treatment. Collectively, we demonstrate that microbial metabolic capacities in subsurface soils are reduced, probably arising from enhanced thaw by warming. Article in Journal/Newspaper permafrost Tundra Alaska Wiley Online Library Molecular Ecology 31 5 1403 1415 |
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Wiley Online Library |
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English |
topic |
Genetics Ecology, Evolution, Behavior and Systematics |
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Genetics Ecology, Evolution, Behavior and Systematics Wu, Linwei Yang, Felix Feng, Jiajie Tao, Xuanyu Qi, Qi Wang, Cong Schuur, Edward A. G. Bracho, Rosvel Huang, Yi Cole, James R. Tiedje, James M. Zhou, Jizhong Permafrost thaw with warming reduces microbial metabolic capacities in subsurface soils |
topic_facet |
Genetics Ecology, Evolution, Behavior and Systematics |
description |
Abstract Microorganisms are major constituents of the total biomass in permafrost regions, whose underlain soils are frozen for at least two consecutive years. To understand potential microbial responses to climate change, here we examined microbial community compositions and functional capacities across four soil depths in an Alaska tundra site. We showed that a 5‐year warming treatment increased soil thaw depth by 25.7% ( p = .011) within the deep organic layer (15–25 cm). Concurrently, warming reduced 37% of bacterial abundance and 64% of fungal abundances in the deep organic layer, while it did not affect microbial abundance in other soil layers (i.e., 0–5, 5–15, and 45–55 cm). Warming treatment altered fungal community composition and microbial functional structure ( p < .050), but not bacterial community composition. Using a functional gene array, we found that the relative abundances of a variety of carbon (C)‐decomposing, iron‐reducing, and sulphate‐reducing genes in the deep organic layer were decreased, which was not observed by the shotgun sequencing‐based metagenomics analysis of those samples. To explain the reduced metabolic capacities, we found that warming treatment elicited higher deterministic environmental filtering, which could be linked to water‐saturated time, soil moisture, and soil thaw duration. In contrast, plant factors showed little influence on microbial communities in subsurface soils below 15 cm, despite a 25.2% higher ( p < .05) aboveground plant biomass by warming treatment. Collectively, we demonstrate that microbial metabolic capacities in subsurface soils are reduced, probably arising from enhanced thaw by warming. |
author2 |
Office of Science |
format |
Article in Journal/Newspaper |
author |
Wu, Linwei Yang, Felix Feng, Jiajie Tao, Xuanyu Qi, Qi Wang, Cong Schuur, Edward A. G. Bracho, Rosvel Huang, Yi Cole, James R. Tiedje, James M. Zhou, Jizhong |
author_facet |
Wu, Linwei Yang, Felix Feng, Jiajie Tao, Xuanyu Qi, Qi Wang, Cong Schuur, Edward A. G. Bracho, Rosvel Huang, Yi Cole, James R. Tiedje, James M. Zhou, Jizhong |
author_sort |
Wu, Linwei |
title |
Permafrost thaw with warming reduces microbial metabolic capacities in subsurface soils |
title_short |
Permafrost thaw with warming reduces microbial metabolic capacities in subsurface soils |
title_full |
Permafrost thaw with warming reduces microbial metabolic capacities in subsurface soils |
title_fullStr |
Permafrost thaw with warming reduces microbial metabolic capacities in subsurface soils |
title_full_unstemmed |
Permafrost thaw with warming reduces microbial metabolic capacities in subsurface soils |
title_sort |
permafrost thaw with warming reduces microbial metabolic capacities in subsurface soils |
publisher |
Wiley |
publishDate |
2021 |
url |
http://dx.doi.org/10.1111/mec.16319 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.16319 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/mec.16319 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/mec.16319 |
genre |
permafrost Tundra Alaska |
genre_facet |
permafrost Tundra Alaska |
op_source |
Molecular Ecology volume 31, issue 5, page 1403-1415 ISSN 0962-1083 1365-294X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/mec.16319 |
container_title |
Molecular Ecology |
container_volume |
31 |
container_issue |
5 |
container_start_page |
1403 |
op_container_end_page |
1415 |
_version_ |
1794405957533433856 |