Microbial functional diversity covaries with permafrost thaw-induced environmental heterogeneity in tundra soil
Permafrost soil in high latitude tundra is one of the largest terrestrial carbon (C) stocks and is highly sensitive to climate warming. Understanding microbial responses to warming-induced environmental changes is critical to evaluating their influences on soil biogeochemical cycles. In this study,...
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ftosti:oai:osti.gov:1561880 2023-07-30T04:06:17+02:00 Microbial functional diversity covaries with permafrost thaw-induced environmental heterogeneity in tundra soil Yuan, Mengting M. Zhang, Jin Xue, Kai Wu, Liyou Deng, Ye Deng, Jie Hale, Lauren Zhou, Xishu He, Zhili Yang, Yunfeng Van Nostrand, Joy D. Schuur, Edward A. G. Konstantinidis, Konstantinos T. Penton, Christopher R. Cole, James R. Tiedje, James M. Luo, Yiqi Zhou, Jizhong 2021-08-02 application/pdf http://www.osti.gov/servlets/purl/1561880 https://www.osti.gov/biblio/1561880 https://doi.org/10.1111/gcb.13820 unknown http://www.osti.gov/servlets/purl/1561880 https://www.osti.gov/biblio/1561880 https://doi.org/10.1111/gcb.13820 doi:10.1111/gcb.13820 59 BASIC BIOLOGICAL SCIENCES 2021 ftosti https://doi.org/10.1111/gcb.13820 2023-07-11T09:36:49Z Permafrost soil in high latitude tundra is one of the largest terrestrial carbon (C) stocks and is highly sensitive to climate warming. Understanding microbial responses to warming-induced environmental changes is critical to evaluating their influences on soil biogeochemical cycles. In this study, a functional gene array (i.e., geochip 4.2) was used to analyze the functional capacities of soil microbial communities collected from a naturally degrading permafrost region in Central Alaska. Varied thaw history was reported to be the main driver of soil and plant differences across a gradient of minimally, moderately, and extensively thawed sites. Compared with the minimally thawed site, the number of detected functional gene probes across the 15-65 cm depth profile at the moderately and extensively thawed sites decreased by 25% and 5%, while the community functional gene β-diversity increased by 34% and 45%, respectively, revealing decreased functional gene richness but increased community heterogeneity along the thaw progression. Particularly, the moderately thawed site contained microbial communities with the highest abundances of many genes involved in prokaryotic C degradation, ammonification, and nitrification processes, but lower abundances of fungal C decomposition and anaerobic-related genes. Significant correlations were observed between functional gene abundance and vascular plant primary productivity, suggesting that plant growth and species composition could be co-evolving traits together with microbial community composition. Finally, altogether, this study reveals the complex responses of microbial functional potentials to thaw-related soil and plant changes and provides information on potential microbially mediated biogeochemical cycles in tundra ecosystems. Other/Unknown Material permafrost Tundra Alaska SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) Global Change Biology 24 1 297 307 |
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Open Polar |
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SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
op_collection_id |
ftosti |
language |
unknown |
topic |
59 BASIC BIOLOGICAL SCIENCES |
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59 BASIC BIOLOGICAL SCIENCES Yuan, Mengting M. Zhang, Jin Xue, Kai Wu, Liyou Deng, Ye Deng, Jie Hale, Lauren Zhou, Xishu He, Zhili Yang, Yunfeng Van Nostrand, Joy D. Schuur, Edward A. G. Konstantinidis, Konstantinos T. Penton, Christopher R. Cole, James R. Tiedje, James M. Luo, Yiqi Zhou, Jizhong Microbial functional diversity covaries with permafrost thaw-induced environmental heterogeneity in tundra soil |
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59 BASIC BIOLOGICAL SCIENCES |
description |
Permafrost soil in high latitude tundra is one of the largest terrestrial carbon (C) stocks and is highly sensitive to climate warming. Understanding microbial responses to warming-induced environmental changes is critical to evaluating their influences on soil biogeochemical cycles. In this study, a functional gene array (i.e., geochip 4.2) was used to analyze the functional capacities of soil microbial communities collected from a naturally degrading permafrost region in Central Alaska. Varied thaw history was reported to be the main driver of soil and plant differences across a gradient of minimally, moderately, and extensively thawed sites. Compared with the minimally thawed site, the number of detected functional gene probes across the 15-65 cm depth profile at the moderately and extensively thawed sites decreased by 25% and 5%, while the community functional gene β-diversity increased by 34% and 45%, respectively, revealing decreased functional gene richness but increased community heterogeneity along the thaw progression. Particularly, the moderately thawed site contained microbial communities with the highest abundances of many genes involved in prokaryotic C degradation, ammonification, and nitrification processes, but lower abundances of fungal C decomposition and anaerobic-related genes. Significant correlations were observed between functional gene abundance and vascular plant primary productivity, suggesting that plant growth and species composition could be co-evolving traits together with microbial community composition. Finally, altogether, this study reveals the complex responses of microbial functional potentials to thaw-related soil and plant changes and provides information on potential microbially mediated biogeochemical cycles in tundra ecosystems. |
author |
Yuan, Mengting M. Zhang, Jin Xue, Kai Wu, Liyou Deng, Ye Deng, Jie Hale, Lauren Zhou, Xishu He, Zhili Yang, Yunfeng Van Nostrand, Joy D. Schuur, Edward A. G. Konstantinidis, Konstantinos T. Penton, Christopher R. Cole, James R. Tiedje, James M. Luo, Yiqi Zhou, Jizhong |
author_facet |
Yuan, Mengting M. Zhang, Jin Xue, Kai Wu, Liyou Deng, Ye Deng, Jie Hale, Lauren Zhou, Xishu He, Zhili Yang, Yunfeng Van Nostrand, Joy D. Schuur, Edward A. G. Konstantinidis, Konstantinos T. Penton, Christopher R. Cole, James R. Tiedje, James M. Luo, Yiqi Zhou, Jizhong |
author_sort |
Yuan, Mengting M. |
title |
Microbial functional diversity covaries with permafrost thaw-induced environmental heterogeneity in tundra soil |
title_short |
Microbial functional diversity covaries with permafrost thaw-induced environmental heterogeneity in tundra soil |
title_full |
Microbial functional diversity covaries with permafrost thaw-induced environmental heterogeneity in tundra soil |
title_fullStr |
Microbial functional diversity covaries with permafrost thaw-induced environmental heterogeneity in tundra soil |
title_full_unstemmed |
Microbial functional diversity covaries with permafrost thaw-induced environmental heterogeneity in tundra soil |
title_sort |
microbial functional diversity covaries with permafrost thaw-induced environmental heterogeneity in tundra soil |
publishDate |
2021 |
url |
http://www.osti.gov/servlets/purl/1561880 https://www.osti.gov/biblio/1561880 https://doi.org/10.1111/gcb.13820 |
genre |
permafrost Tundra Alaska |
genre_facet |
permafrost Tundra Alaska |
op_relation |
http://www.osti.gov/servlets/purl/1561880 https://www.osti.gov/biblio/1561880 https://doi.org/10.1111/gcb.13820 doi:10.1111/gcb.13820 |
op_doi |
https://doi.org/10.1111/gcb.13820 |
container_title |
Global Change Biology |
container_volume |
24 |
container_issue |
1 |
container_start_page |
297 |
op_container_end_page |
307 |
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1772818798444806144 |