The role of changing temperature in microbial metabolic processes during permafrost thaw
Approximately one fourth of the Earth’s Northern Hemisphere is underlain by permafrost, earth materials (soil, organic matter, or bedrock), that has been continuously frozen for at least two consecutive years. Numerous studies point to evidence of accelerated climate warming in the Arctic and sub-Ar...
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ftpubmed:oai:pubmedcentral.nih.gov:7192436 2023-05-15T13:55:34+02:00 The role of changing temperature in microbial metabolic processes during permafrost thaw Messan, Komi S. Jones, Robert M. Doherty, Stacey J. Foley, Karen Douglas, Thomas A. Barbato, Robyn A. 2020-04-30 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7192436/ http://www.ncbi.nlm.nih.gov/pubmed/32353013 https://doi.org/10.1371/journal.pone.0232169 en eng Public Library of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7192436/ http://www.ncbi.nlm.nih.gov/pubmed/32353013 http://dx.doi.org/10.1371/journal.pone.0232169 https://creativecommons.org/publicdomain/zero/1.0/ This is an open access article, free of all copyright, and may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose. The work is made available under the Creative Commons CC0 (https://creativecommons.org/publicdomain/zero/1.0/) public domain dedication. CC0 PDM PLoS One Research Article Text 2020 ftpubmed https://doi.org/10.1371/journal.pone.0232169 2020-05-17T00:17:22Z Approximately one fourth of the Earth’s Northern Hemisphere is underlain by permafrost, earth materials (soil, organic matter, or bedrock), that has been continuously frozen for at least two consecutive years. Numerous studies point to evidence of accelerated climate warming in the Arctic and sub-Arctic where permafrost is located. Changes to permafrost biochemical processes may critically impact ecosystem processes at the landscape scale. Here, we sought to understand how the permafrost metabolome responds to thaw and how this response differs based on location (i.e. chronosequence of permafrost formation constituting diverse permafrost types). We analyzed metabolites from microbial cells originating from Alaskan permafrost. Overall, permafrost thaw induced a shift in microbial metabolic processes. Of note were the dissimilarities in biochemical structure between frozen and thawed samples. The thawed permafrost metabolomes from different locations were highly similar. In the intact permafrost, several metabolites with antagonist properties were identified, illustrating the competitive survival strategy required to survive a frozen state. Interestingly, the intensity of these antagonistic metabolites decreased with warmer temperature, indicating a shift in ecological strategies in thawed permafrost. These findings illustrate the impact of change in temperature and spatial variability as permafrost undergoes thaw, knowledge that will become crucial for predicting permafrost biogeochemical dynamics as the Arctic and Antarctic landscapes continue to warm. Text Antarc* Antarctic Arctic permafrost PubMed Central (PMC) Antarctic Arctic PLOS ONE 15 4 e0232169 |
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English |
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Research Article Messan, Komi S. Jones, Robert M. Doherty, Stacey J. Foley, Karen Douglas, Thomas A. Barbato, Robyn A. The role of changing temperature in microbial metabolic processes during permafrost thaw |
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Research Article |
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Approximately one fourth of the Earth’s Northern Hemisphere is underlain by permafrost, earth materials (soil, organic matter, or bedrock), that has been continuously frozen for at least two consecutive years. Numerous studies point to evidence of accelerated climate warming in the Arctic and sub-Arctic where permafrost is located. Changes to permafrost biochemical processes may critically impact ecosystem processes at the landscape scale. Here, we sought to understand how the permafrost metabolome responds to thaw and how this response differs based on location (i.e. chronosequence of permafrost formation constituting diverse permafrost types). We analyzed metabolites from microbial cells originating from Alaskan permafrost. Overall, permafrost thaw induced a shift in microbial metabolic processes. Of note were the dissimilarities in biochemical structure between frozen and thawed samples. The thawed permafrost metabolomes from different locations were highly similar. In the intact permafrost, several metabolites with antagonist properties were identified, illustrating the competitive survival strategy required to survive a frozen state. Interestingly, the intensity of these antagonistic metabolites decreased with warmer temperature, indicating a shift in ecological strategies in thawed permafrost. These findings illustrate the impact of change in temperature and spatial variability as permafrost undergoes thaw, knowledge that will become crucial for predicting permafrost biogeochemical dynamics as the Arctic and Antarctic landscapes continue to warm. |
format |
Text |
author |
Messan, Komi S. Jones, Robert M. Doherty, Stacey J. Foley, Karen Douglas, Thomas A. Barbato, Robyn A. |
author_facet |
Messan, Komi S. Jones, Robert M. Doherty, Stacey J. Foley, Karen Douglas, Thomas A. Barbato, Robyn A. |
author_sort |
Messan, Komi S. |
title |
The role of changing temperature in microbial metabolic processes during permafrost thaw |
title_short |
The role of changing temperature in microbial metabolic processes during permafrost thaw |
title_full |
The role of changing temperature in microbial metabolic processes during permafrost thaw |
title_fullStr |
The role of changing temperature in microbial metabolic processes during permafrost thaw |
title_full_unstemmed |
The role of changing temperature in microbial metabolic processes during permafrost thaw |
title_sort |
role of changing temperature in microbial metabolic processes during permafrost thaw |
publisher |
Public Library of Science |
publishDate |
2020 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7192436/ http://www.ncbi.nlm.nih.gov/pubmed/32353013 https://doi.org/10.1371/journal.pone.0232169 |
geographic |
Antarctic Arctic |
geographic_facet |
Antarctic Arctic |
genre |
Antarc* Antarctic Arctic permafrost |
genre_facet |
Antarc* Antarctic Arctic permafrost |
op_source |
PLoS One |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7192436/ http://www.ncbi.nlm.nih.gov/pubmed/32353013 http://dx.doi.org/10.1371/journal.pone.0232169 |
op_rights |
https://creativecommons.org/publicdomain/zero/1.0/ This is an open access article, free of all copyright, and may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose. The work is made available under the Creative Commons CC0 (https://creativecommons.org/publicdomain/zero/1.0/) public domain dedication. |
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CC0 PDM |
op_doi |
https://doi.org/10.1371/journal.pone.0232169 |
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PLOS ONE |
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15 |
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4 |
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e0232169 |
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