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dc.contributor.authorRainer, Edda Marie
dc.contributor.authorSeppey, Victor William Christophe
dc.contributor.authorHammer, Caroline
dc.contributor.authorSvenning, Mette Marianne
dc.contributor.authorTveit, Alexander
dc.date.accessioned2021-12-21T11:42:39Z
dc.date.available2021-12-21T11:42:39Z
dc.date.issued2021-10-02
dc.description.abstractRising temperatures in the Arctic affect soil microorganisms, herbivores, and peatland vegetation, thus directly and indirectly influencing microbial CH<sub>4</sub> production. It is not currently known how methanotrophs in Arctic peat respond to combined changes in temperature, CH<sub>4</sub> concentration, and vegetation. We studied methanotroph responses to temperature and CH<sub>4</sub> concentration in peat exposed to herbivory and protected by exclosures. The methanotroph activity was assessed by CH<sub>4</sub> oxidation rate measurements using peat soil microcosms and a pure culture of Methylobacter tundripaludum SV96, qPCR, and sequencing of pmoA transcripts. Elevated CH<sub>4</sub> concentrations led to higher CH<sub>4</sub> oxidation rates both in grazed and exclosed peat soils, but the strongest response was observed in grazed peat soils. Furthermore, the relative transcriptional activities of different methanotroph community members were affected by the CH<sub>4</sub> concentrations. While transcriptional responses to low CH<sub>4</sub> concentrations were more prevalent in grazed peat soils, responses to high CH<sub>4</sub> concentrations were more prevalent in exclosed peat soils. We observed no significant methanotroph responses to increasing temperatures. We conclude that methanotroph communities in these peat soils respond to changes in the CH<sub>4</sub> concentration depending on their previous exposure to grazing. This “conditioning” influences which strains will thrive and, therefore, determines the function of the methanotroph community.en_US
dc.identifier.citationRainer, Seppey CVW, Hammer, Svenning, Tveit. The influence of above-ground herbivory on the response of arctic soil methanotrophs to increasing CH<sub>4</sub> concentrations and temperatures. Microorganisms. 2021;9(10)en_US
dc.identifier.cristinIDFRIDAID 1965006
dc.identifier.doi10.3390/microorganisms9102080
dc.identifier.issn2076-2607
dc.identifier.urihttps://hdl.handle.net/10037/23458
dc.language.isoengen_US
dc.publisherMDPIen_US
dc.relation.ispartofRainer, E.M. (2022). Response and resilience of the microbial methane filter to ecosystem changes in Arctic peatlands. (Doctoral thesis). <a href=https://hdl.handle.net/10037/25384>https://hdl.handle.net/10037/25384</a>.
dc.relation.journalMicroorganisms
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/MILJØFORSK/270252/Norway/BiodivERsA-Climate change impacts on Arctic soil and lake microbiomes//en_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-PEOPLE/606895/Denmark/Phylogenetic exploration of medicinal plant diversity/MedPlant/en_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/LATIN-AM/256132/Norway/ERAnet-LAC, METHAnogenic Biodiversity and activity in Arctic and Subantarctic Ecosystems affected by climate change/METHABASE,DCC-92/en_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/SFF/256933/Norway/The Microbial Methane Filter in the Arctic: Resilience and Response to Climate Change/RIS-ID 10208/en_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/NORRUSS/233645/Norway/The microbial methane "filter" in the Arctic: resilience and response to climate change//en_US
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2021 The Author(s)en_US
dc.subjectVDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497en_US
dc.titleThe influence of above-ground herbivory on the response of arctic soil methanotrophs to increasing ch4 concentrations and temperaturesen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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