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dc.contributor.authorBender, Kathrin Marina
dc.contributor.authorSvenning, Mette Marianne
dc.contributor.authorHu, Yuntao
dc.contributor.authorRichter, Andreas
dc.contributor.authorSchückel, Julia
dc.contributor.authorJørgensen, Bodil
dc.contributor.authorLiebner, Susanne
dc.contributor.authorTveit, Alexander Tøsdal
dc.date.accessioned2021-10-19T08:19:46Z
dc.date.available2021-10-19T08:19:46Z
dc.date.issued2021-03-30
dc.description.abstractHerbivory by barnacle geese (<i>Branta leucopsis</i>) 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 <i>Helotiales (Ascomycota)</i> and <i>Agaricales (Basidiomycota)</i>. 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.en_US
dc.identifier.citationBender, Svenning, Hu, Richter, Schückel, Jørgensen, Liebner, Tveit. Microbial responses to herbivory-induced vegetation changes in a high-Arctic peatland Download. Polar Biology. 2021en_US
dc.identifier.cristinIDFRIDAID 1919337
dc.identifier.doi10.1007/s00300-021-02846-z
dc.identifier.issn0722-4060
dc.identifier.issn1432-2056
dc.identifier.urihttps://hdl.handle.net/10037/22778
dc.language.isoengen_US
dc.publisherSpringeren_US
dc.relation.ispartofBender, K.M. (2023). Impacts of Vegetation and Temperature Changes on Carbon Cycling Microbial Communities in Arctic Wetlands. (Doctoral thesis). <a href=https://hdl.handle.net/10037/31689>https://hdl.handle.net/10037/31689</a>.
dc.relation.journalPolar Biology
dc.relation.projectIDNotur/NorStore: NS9593Ken_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/FRIMEDBIO/251027/Norway/Time & Energy: Fundamental microbial mechanisms that control CH4 dynamics in a warming Arctic//en_US
dc.relation.projectIDinfo: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/en_US
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2021 The Author(s)en_US
dc.subjectVDP::Mathematics and natural science: 400en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400en_US
dc.titleMicrobial responses to herbivory-induced vegetation changes in a high-Arctic peatlanden_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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