Abrupt permafrost thaw triggers activity of copiotrophs and microbiome predators
Permafrost soils store a substantial part of the global soil carbon and nitrogen. However, global warming causes abrupt erosion and gradual thaw, which make these stocks vulnerable to microbial decomposition into greenhouse gases. Here, we investigated the microbial response to abrupt in situ permaf...
Published in: | FEMS Microbiology Ecology |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2023
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Online Access: | https://pure.au.dk/portal/da/publications/abrupt-permafrost-thaw-triggers-activity-of-copiotrophs-and-microbiome-predators(c528fed3-6c50-40c8-8952-96fc39d3275b).html https://doi.org/10.1093/femsec/fiad123 http://www.scopus.com/inward/record.url?scp=85175269572&partnerID=8YFLogxK |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/c528fed3-6c50-40c8-8952-96fc39d3275b 2023-12-24T10:24:04+01:00 Abrupt permafrost thaw triggers activity of copiotrophs and microbiome predators Scheel, Maria Zervas, Athanasios Rijkers, Ruud Tveit, Alexander T. Ekelund, Flemming Campuzano Jiménez, Francisco Christensen, Torben R. Jacobsen, Carsten S. 2023-11 https://pure.au.dk/portal/da/publications/abrupt-permafrost-thaw-triggers-activity-of-copiotrophs-and-microbiome-predators(c528fed3-6c50-40c8-8952-96fc39d3275b).html https://doi.org/10.1093/femsec/fiad123 http://www.scopus.com/inward/record.url?scp=85175269572&partnerID=8YFLogxK eng eng https://pure.au.dk/portal/da/publications/abrupt-permafrost-thaw-triggers-activity-of-copiotrophs-and-microbiome-predators(c528fed3-6c50-40c8-8952-96fc39d3275b).html info:eu-repo/semantics/openAccess Scheel , M , Zervas , A , Rijkers , R , Tveit , A T , Ekelund , F , Campuzano Jiménez , F , Christensen , T R & Jacobsen , C S 2023 , ' Abrupt permafrost thaw triggers activity of copiotrophs and microbiome predators ' , FEMS Microbiology Ecology , vol. 99 , no. 11 , fiad123 . https://doi.org/10.1093/femsec/fiad123 abrupt erosion copiotrophic permafrost protozoa transcriptomics article 2023 ftuniaarhuspubl https://doi.org/10.1093/femsec/fiad123 2023-11-30T00:01:56Z Permafrost soils store a substantial part of the global soil carbon and nitrogen. However, global warming causes abrupt erosion and gradual thaw, which make these stocks vulnerable to microbial decomposition into greenhouse gases. Here, we investigated the microbial response to abrupt in situ permafrost thaw. We sequenced the total RNA of a 1 m deep soil core consisting of up to 26 500-year-old permafrost material from an active abrupt erosion site. We analysed the microbial community in the active layer soil, the recently thawed, and the intact permafrost, and found maximum RNA:DNA ratios in recently thawed permafrost indicating a high microbial activity. In thawed permafrost, potentially copiotrophic Burkholderiales and Sphingobacteriales, but also microbiome predators dominated the community. Overall, both thaw-dependent and long-term soil properties significantly correlated with changes in community composition, as did microbiome predator abundance. Bacterial predators were dominated in shallower depths by Myxococcota, while protozoa, especially Cercozoa and Ciliophora, almost tripled in relative abundance in thawed layers. Our findings highlight the ecological importance of a diverse interkingdom and active microbial community highly abundant in abruptly thawing permafrost, as well as predation as potential biological control mechanism. Article in Journal/Newspaper permafrost Aarhus University: Research FEMS Microbiology Ecology 99 11 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
abrupt erosion copiotrophic permafrost protozoa transcriptomics |
spellingShingle |
abrupt erosion copiotrophic permafrost protozoa transcriptomics Scheel, Maria Zervas, Athanasios Rijkers, Ruud Tveit, Alexander T. Ekelund, Flemming Campuzano Jiménez, Francisco Christensen, Torben R. Jacobsen, Carsten S. Abrupt permafrost thaw triggers activity of copiotrophs and microbiome predators |
topic_facet |
abrupt erosion copiotrophic permafrost protozoa transcriptomics |
description |
Permafrost soils store a substantial part of the global soil carbon and nitrogen. However, global warming causes abrupt erosion and gradual thaw, which make these stocks vulnerable to microbial decomposition into greenhouse gases. Here, we investigated the microbial response to abrupt in situ permafrost thaw. We sequenced the total RNA of a 1 m deep soil core consisting of up to 26 500-year-old permafrost material from an active abrupt erosion site. We analysed the microbial community in the active layer soil, the recently thawed, and the intact permafrost, and found maximum RNA:DNA ratios in recently thawed permafrost indicating a high microbial activity. In thawed permafrost, potentially copiotrophic Burkholderiales and Sphingobacteriales, but also microbiome predators dominated the community. Overall, both thaw-dependent and long-term soil properties significantly correlated with changes in community composition, as did microbiome predator abundance. Bacterial predators were dominated in shallower depths by Myxococcota, while protozoa, especially Cercozoa and Ciliophora, almost tripled in relative abundance in thawed layers. Our findings highlight the ecological importance of a diverse interkingdom and active microbial community highly abundant in abruptly thawing permafrost, as well as predation as potential biological control mechanism. |
format |
Article in Journal/Newspaper |
author |
Scheel, Maria Zervas, Athanasios Rijkers, Ruud Tveit, Alexander T. Ekelund, Flemming Campuzano Jiménez, Francisco Christensen, Torben R. Jacobsen, Carsten S. |
author_facet |
Scheel, Maria Zervas, Athanasios Rijkers, Ruud Tveit, Alexander T. Ekelund, Flemming Campuzano Jiménez, Francisco Christensen, Torben R. Jacobsen, Carsten S. |
author_sort |
Scheel, Maria |
title |
Abrupt permafrost thaw triggers activity of copiotrophs and microbiome predators |
title_short |
Abrupt permafrost thaw triggers activity of copiotrophs and microbiome predators |
title_full |
Abrupt permafrost thaw triggers activity of copiotrophs and microbiome predators |
title_fullStr |
Abrupt permafrost thaw triggers activity of copiotrophs and microbiome predators |
title_full_unstemmed |
Abrupt permafrost thaw triggers activity of copiotrophs and microbiome predators |
title_sort |
abrupt permafrost thaw triggers activity of copiotrophs and microbiome predators |
publishDate |
2023 |
url |
https://pure.au.dk/portal/da/publications/abrupt-permafrost-thaw-triggers-activity-of-copiotrophs-and-microbiome-predators(c528fed3-6c50-40c8-8952-96fc39d3275b).html https://doi.org/10.1093/femsec/fiad123 http://www.scopus.com/inward/record.url?scp=85175269572&partnerID=8YFLogxK |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Scheel , M , Zervas , A , Rijkers , R , Tveit , A T , Ekelund , F , Campuzano Jiménez , F , Christensen , T R & Jacobsen , C S 2023 , ' Abrupt permafrost thaw triggers activity of copiotrophs and microbiome predators ' , FEMS Microbiology Ecology , vol. 99 , no. 11 , fiad123 . https://doi.org/10.1093/femsec/fiad123 |
op_relation |
https://pure.au.dk/portal/da/publications/abrupt-permafrost-thaw-triggers-activity-of-copiotrophs-and-microbiome-predators(c528fed3-6c50-40c8-8952-96fc39d3275b).html |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1093/femsec/fiad123 |
container_title |
FEMS Microbiology Ecology |
container_volume |
99 |
container_issue |
11 |
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1786198486293676032 |