High-Alpine Permafrost and Active-Layer Soil Microbiomes Differ in Their Response to Elevated Temperatures
The response of microbial communities to the predicted rising temperatures in alpine regions might be an important part of the ability of these ecosystems to deal with climate change. Soil microbial communities might be significantly affected by elevated temperatures, which influence the functioning...
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ftdoajarticles:oai:doaj.org/article:49edd420f23c4a80a104a708e1420fcb 2023-05-15T17:56:39+02:00 High-Alpine Permafrost and Active-Layer Soil Microbiomes Differ in Their Response to Elevated Temperatures Petra Luláková Carla Perez-Mon Hana Šantrůčková Joel Ruethi Beat Frey 2019-04-01T00:00:00Z https://doi.org/10.3389/fmicb.2019.00668 https://doaj.org/article/49edd420f23c4a80a104a708e1420fcb EN eng Frontiers Media S.A. https://www.frontiersin.org/article/10.3389/fmicb.2019.00668/full https://doaj.org/toc/1664-302X 1664-302X doi:10.3389/fmicb.2019.00668 https://doaj.org/article/49edd420f23c4a80a104a708e1420fcb Frontiers in Microbiology, Vol 10 (2019) climate warming European Alps permafrost active soil layer microcosm bacterial community Microbiology QR1-502 article 2019 ftdoajarticles https://doi.org/10.3389/fmicb.2019.00668 2022-12-31T14:56:49Z The response of microbial communities to the predicted rising temperatures in alpine regions might be an important part of the ability of these ecosystems to deal with climate change. Soil microbial communities might be significantly affected by elevated temperatures, which influence the functioning of soils within high-alpine ecosystems. To evaluate the potential of the permafrost microbiome to adapt to short-term moderate and extreme warming, we set up an incubation experiment with permafrost and active soil layers from northern and southern slopes of a high-alpine mountain ridge on Muot da Barba Peider in the Swiss Alps. Soils were acclimated to increasing temperatures (4–40°C) for 26 days before being exposed to a heat shock treatment of 40°C for 4 days. Alpha-diversity in all soils increased slightly under gradual warming, from 4 to 25°C, but then dropped considerably at 40°C. Similarly, heat shock induced strong changes in microbial community structures and functioning in the active layer of soils from both northern and southern slope aspects. In contrast, permafrost soils showed only minor changes in their microbial community structures and no changes in their functioning, except regarding specific respiration activity. Shifts in microbial community structures with increasing temperature were significantly more pronounced for bacteria than for fungi, regardless of the soil origin, suggesting higher resistance of high-alpine fungi to short-term warming. Firmicutes, mainly represented by Tumebacillus and Alicyclobacillaceae OTUs, increased strongly at 40°C in active layer soils, reaching almost 50% of the total abundance. In contrast, Saccharibacteria decreased significantly with increasing temperature across all soil samples. Overall, our study highlights the divergent responses of fungal and bacterial communities to increased temperature. Fungi were highly resistant to increased temperatures compared to bacteria, and permafrost communities showed surprisingly low response to rising temperature. The unique ... Article in Journal/Newspaper permafrost Directory of Open Access Journals: DOAJ Articles Frontiers in Microbiology 10 |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
climate warming European Alps permafrost active soil layer microcosm bacterial community Microbiology QR1-502 |
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climate warming European Alps permafrost active soil layer microcosm bacterial community Microbiology QR1-502 Petra Luláková Carla Perez-Mon Hana Šantrůčková Joel Ruethi Beat Frey High-Alpine Permafrost and Active-Layer Soil Microbiomes Differ in Their Response to Elevated Temperatures |
topic_facet |
climate warming European Alps permafrost active soil layer microcosm bacterial community Microbiology QR1-502 |
description |
The response of microbial communities to the predicted rising temperatures in alpine regions might be an important part of the ability of these ecosystems to deal with climate change. Soil microbial communities might be significantly affected by elevated temperatures, which influence the functioning of soils within high-alpine ecosystems. To evaluate the potential of the permafrost microbiome to adapt to short-term moderate and extreme warming, we set up an incubation experiment with permafrost and active soil layers from northern and southern slopes of a high-alpine mountain ridge on Muot da Barba Peider in the Swiss Alps. Soils were acclimated to increasing temperatures (4–40°C) for 26 days before being exposed to a heat shock treatment of 40°C for 4 days. Alpha-diversity in all soils increased slightly under gradual warming, from 4 to 25°C, but then dropped considerably at 40°C. Similarly, heat shock induced strong changes in microbial community structures and functioning in the active layer of soils from both northern and southern slope aspects. In contrast, permafrost soils showed only minor changes in their microbial community structures and no changes in their functioning, except regarding specific respiration activity. Shifts in microbial community structures with increasing temperature were significantly more pronounced for bacteria than for fungi, regardless of the soil origin, suggesting higher resistance of high-alpine fungi to short-term warming. Firmicutes, mainly represented by Tumebacillus and Alicyclobacillaceae OTUs, increased strongly at 40°C in active layer soils, reaching almost 50% of the total abundance. In contrast, Saccharibacteria decreased significantly with increasing temperature across all soil samples. Overall, our study highlights the divergent responses of fungal and bacterial communities to increased temperature. Fungi were highly resistant to increased temperatures compared to bacteria, and permafrost communities showed surprisingly low response to rising temperature. The unique ... |
format |
Article in Journal/Newspaper |
author |
Petra Luláková Carla Perez-Mon Hana Šantrůčková Joel Ruethi Beat Frey |
author_facet |
Petra Luláková Carla Perez-Mon Hana Šantrůčková Joel Ruethi Beat Frey |
author_sort |
Petra Luláková |
title |
High-Alpine Permafrost and Active-Layer Soil Microbiomes Differ in Their Response to Elevated Temperatures |
title_short |
High-Alpine Permafrost and Active-Layer Soil Microbiomes Differ in Their Response to Elevated Temperatures |
title_full |
High-Alpine Permafrost and Active-Layer Soil Microbiomes Differ in Their Response to Elevated Temperatures |
title_fullStr |
High-Alpine Permafrost and Active-Layer Soil Microbiomes Differ in Their Response to Elevated Temperatures |
title_full_unstemmed |
High-Alpine Permafrost and Active-Layer Soil Microbiomes Differ in Their Response to Elevated Temperatures |
title_sort |
high-alpine permafrost and active-layer soil microbiomes differ in their response to elevated temperatures |
publisher |
Frontiers Media S.A. |
publishDate |
2019 |
url |
https://doi.org/10.3389/fmicb.2019.00668 https://doaj.org/article/49edd420f23c4a80a104a708e1420fcb |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Frontiers in Microbiology, Vol 10 (2019) |
op_relation |
https://www.frontiersin.org/article/10.3389/fmicb.2019.00668/full https://doaj.org/toc/1664-302X 1664-302X doi:10.3389/fmicb.2019.00668 https://doaj.org/article/49edd420f23c4a80a104a708e1420fcb |
op_doi |
https://doi.org/10.3389/fmicb.2019.00668 |
container_title |
Frontiers in Microbiology |
container_volume |
10 |
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1766164876088049664 |