Microbial responses to herbivory-induced vegetation changes in a high-Arctic peatland
Herbivory by barnacle geese ( Branta leucopsis ) alters the vegetation cover and reduces ecosystem productivity in high-Arctic peatlands, limiting the carbon sink strength of these ecosystems. Here we investigate how herbivory-induced vegetation changes affect the activities of peat soil microbiota...
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ftunivtroemsoe:oai:munin.uit.no:10037/22778 2023-12-03T10:14:49+01:00 Microbial responses to herbivory-induced vegetation changes in a high-Arctic peatland Bender, Kathrin Marina Svenning, Mette Marianne Hu, Yuntao Richter, Andreas Schückel, Julia Jørgensen, Bodil Liebner, Susanne Tveit, Alexander Tøsdal 2021-03-30 https://hdl.handle.net/10037/22778 https://doi.org/10.1007/s00300-021-02846-z eng eng Springer Bender, K.M. (2023). Impacts of Vegetation and Temperature Changes on Carbon Cycling Microbial Communities in Arctic Wetlands. (Doctoral thesis). https://hdl.handle.net/10037/31689 . Polar Biology Notur/NorStore: NS9593K info:eu-repo/grantAgreement/RCN/FRIMEDBIO/251027/Norway/Time & Energy: Fundamental microbial mechanisms that control CH4 dynamics in a warming Arctic// info:eu-repo/grantAgreement/EC/FP7/608695/EU/Marie Curie cofunding of the FRICON mobility programme in the Research Council of Norway scheme for independent basic research projects/FRICON/ Bender, Svenning, Hu, Richter, Schückel, Jørgensen, Liebner, Tveit. Microbial responses to herbivory-induced vegetation changes in a high-Arctic peatland Download. Polar Biology. 2021 FRIDAID 1919337 doi:10.1007/s00300-021-02846-z 0722-4060 1432-2056 https://hdl.handle.net/10037/22778 openAccess Copyright 2021 The Author(s) VDP::Mathematics and natural science: 400 VDP::Matematikk og Naturvitenskap: 400 Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2021 ftunivtroemsoe https://doi.org/10.1007/s00300-021-02846-z 2023-11-09T00:08:06Z Herbivory by barnacle geese ( Branta leucopsis ) alters the vegetation cover and reduces ecosystem productivity in high-Arctic peatlands, limiting the carbon sink strength of these ecosystems. Here we investigate how herbivory-induced vegetation changes affect the activities of peat soil microbiota using metagenomics, metatranscriptomics and targeted metabolomics in a comparison of fenced exclosures and nearby grazed sites. Our results show that a different vegetation with a high proportion of vascular plants developed due to reduced herbivory, resulting in a larger and more diverse input of polysaccharides to the soil at exclosed study sites. This coincided with higher sugar and amino acid concentrations in the soil at this site as well as the establishment of a more abundant and active microbiota, including saprotrophic fungi with broad substrate ranges, like Helotiales (Ascomycota) and Agaricales (Basidiomycota) . A detailed description of fungal transcriptional profiles revealed higher gene expression for cellulose, hemicellulose, pectin, lignin and chitin degradation at herbivory-exclosed sites. Furthermore, we observed an increase in the number of genes and transcripts for predatory eukaryotes such as Entomobryomorpha (Arthropoda). We conclude that in the absence of herbivory, the development of a vascular vegetation alters the soil polysaccharide composition and supports larger and more active populations of fungi and predatory eukaryotes. Article in Journal/Newspaper Arctic Arctic Branta leucopsis Polar Biology University of Tromsø: Munin Open Research Archive Arctic Polar Biology 44 5 899 911 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Mathematics and natural science: 400 VDP::Matematikk og Naturvitenskap: 400 |
spellingShingle |
VDP::Mathematics and natural science: 400 VDP::Matematikk og Naturvitenskap: 400 Bender, Kathrin Marina Svenning, Mette Marianne Hu, Yuntao Richter, Andreas Schückel, Julia Jørgensen, Bodil Liebner, Susanne Tveit, Alexander Tøsdal Microbial responses to herbivory-induced vegetation changes in a high-Arctic peatland |
topic_facet |
VDP::Mathematics and natural science: 400 VDP::Matematikk og Naturvitenskap: 400 |
description |
Herbivory by barnacle geese ( Branta leucopsis ) alters the vegetation cover and reduces ecosystem productivity in high-Arctic peatlands, limiting the carbon sink strength of these ecosystems. Here we investigate how herbivory-induced vegetation changes affect the activities of peat soil microbiota using metagenomics, metatranscriptomics and targeted metabolomics in a comparison of fenced exclosures and nearby grazed sites. Our results show that a different vegetation with a high proportion of vascular plants developed due to reduced herbivory, resulting in a larger and more diverse input of polysaccharides to the soil at exclosed study sites. This coincided with higher sugar and amino acid concentrations in the soil at this site as well as the establishment of a more abundant and active microbiota, including saprotrophic fungi with broad substrate ranges, like Helotiales (Ascomycota) and Agaricales (Basidiomycota) . A detailed description of fungal transcriptional profiles revealed higher gene expression for cellulose, hemicellulose, pectin, lignin and chitin degradation at herbivory-exclosed sites. Furthermore, we observed an increase in the number of genes and transcripts for predatory eukaryotes such as Entomobryomorpha (Arthropoda). We conclude that in the absence of herbivory, the development of a vascular vegetation alters the soil polysaccharide composition and supports larger and more active populations of fungi and predatory eukaryotes. |
format |
Article in Journal/Newspaper |
author |
Bender, Kathrin Marina Svenning, Mette Marianne Hu, Yuntao Richter, Andreas Schückel, Julia Jørgensen, Bodil Liebner, Susanne Tveit, Alexander Tøsdal |
author_facet |
Bender, Kathrin Marina Svenning, Mette Marianne Hu, Yuntao Richter, Andreas Schückel, Julia Jørgensen, Bodil Liebner, Susanne Tveit, Alexander Tøsdal |
author_sort |
Bender, Kathrin Marina |
title |
Microbial responses to herbivory-induced vegetation changes in a high-Arctic peatland |
title_short |
Microbial responses to herbivory-induced vegetation changes in a high-Arctic peatland |
title_full |
Microbial responses to herbivory-induced vegetation changes in a high-Arctic peatland |
title_fullStr |
Microbial responses to herbivory-induced vegetation changes in a high-Arctic peatland |
title_full_unstemmed |
Microbial responses to herbivory-induced vegetation changes in a high-Arctic peatland |
title_sort |
microbial responses to herbivory-induced vegetation changes in a high-arctic peatland |
publisher |
Springer |
publishDate |
2021 |
url |
https://hdl.handle.net/10037/22778 https://doi.org/10.1007/s00300-021-02846-z |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Branta leucopsis Polar Biology |
genre_facet |
Arctic Arctic Branta leucopsis Polar Biology |
op_relation |
Bender, K.M. (2023). Impacts of Vegetation and Temperature Changes on Carbon Cycling Microbial Communities in Arctic Wetlands. (Doctoral thesis). https://hdl.handle.net/10037/31689 . Polar Biology Notur/NorStore: NS9593K info:eu-repo/grantAgreement/RCN/FRIMEDBIO/251027/Norway/Time & Energy: Fundamental microbial mechanisms that control CH4 dynamics in a warming Arctic// info:eu-repo/grantAgreement/EC/FP7/608695/EU/Marie Curie cofunding of the FRICON mobility programme in the Research Council of Norway scheme for independent basic research projects/FRICON/ Bender, Svenning, Hu, Richter, Schückel, Jørgensen, Liebner, Tveit. Microbial responses to herbivory-induced vegetation changes in a high-Arctic peatland Download. Polar Biology. 2021 FRIDAID 1919337 doi:10.1007/s00300-021-02846-z 0722-4060 1432-2056 https://hdl.handle.net/10037/22778 |
op_rights |
openAccess Copyright 2021 The Author(s) |
op_doi |
https://doi.org/10.1007/s00300-021-02846-z |
container_title |
Polar Biology |
container_volume |
44 |
container_issue |
5 |
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899 |
op_container_end_page |
911 |
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