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dc.contributor.authorGründger, Friederike
dc.contributor.authorCarrier, Vincent
dc.contributor.authorSvenning, Mette Marianne
dc.contributor.authorPanieri, Giuliana
dc.contributor.authorVonnahme, Tobias R.
dc.contributor.authorKlasek, Scott
dc.contributor.authorNiemann, Helge
dc.date.accessioned2019-09-19T08:44:48Z
dc.date.available2019-09-19T08:44:48Z
dc.date.issued2019-07-05
dc.description.abstractSedimentary biofilms comprising microbial communities mediating the anaerobic oxidation of methane are rare. Here, we describe two biofilm communities discovered in sediment cores recovered from Arctic cold seep sites (gas hydrate pingos) in the north-western Barents Sea, characterized by steady methane fluxes. We found macroscopically visible biofilms in pockets in the sediment matrix at the depth of the sulphate-methane-transition zone. 16S rRNA gene surveys revealed that the microbial community in one of the two biofilms comprised exclusively of putative anaerobic methanotrophic archaea of which ANME-1 was the sole archaeal taxon. The bacterial community consisted of relatives of sulphate-reducing bacteria (SRB) belonging to uncultured <i>Desulfobacteraceae</i> clustering into SEEP-SRB1 (i.e. the typical SRB associated to ANME-1), and members of the atribacterial JS1 clade. Confocal laser scanning microscopy demonstrates that this biofilm is composed of multicellular strands and patches of ANME-1 that are loosely associated with SRB cells, but not tightly connected in aggregates. Our discovery of methanotrophic biofilms in sediment pockets closely associated with methane seeps constitutes a hitherto overlooked and potentially widespread sink for methane and sulphate in marine sediments.en_US
dc.description.sponsorshipPublication fund of UiT The Arctic University of Norwayen_US
dc.identifier.citationGründger, F., Carrier, V., Svenning, M.M., Panieri, G., Vonnahme, T.R., Klasek, S. & Niemann, H. (2019). Methane-fuelled biofilms predominantly composed of methanotrophic ANME-1 in Arctic gas hydrate-related sediments. <i>Scientific Reports, 9</i>, 9725. https://doi.org/10.1038/s41598-019-46209-5en_US
dc.identifier.cristinIDFRIDAID 1713008
dc.identifier.doi10.1038/s41598-019-46209-5
dc.identifier.issn2045-2322
dc.identifier.urihttps://hdl.handle.net/10037/16225
dc.language.isoengen_US
dc.publisherSpringer Natureen_US
dc.relation.isbasedonNucleotide sequences have been deposited at <a href=https://www.ncbi.nlm.nih.gov/sra>SRA database </a> as BioProject with accession number PRJNA506542. Detailed information on sequencing read processing workflow are available in the Supplementary Information S1.en_US
dc.relation.ispartofCarrier, V. (2021). Microbial community structure associated to Arctic cold seeps. (Doctoral thesis). <a href=https://hdl.handle.net/10037/22978>https://hdl.handle.net/10037/22978</a>.
dc.relation.journalScientific Reports
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/SFF/223259/Norway/Centre for Arctic Gas Hydrate, Environment and Climate/CAGE/en_US
dc.rights.accessRightsopenAccessen_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.subjectVDP::Mathematics and natural science: 400::Chemistry: 440::Environmental chemistry, natural environmental chemistry: 446en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Kjemi: 440::Miljøkjemi, naturmiljøkjemi: 446en_US
dc.subjectVDP::Mathematics and natural science: 400::Basic biosciences: 470::General microbiology: 472en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Basale biofag: 470::Generell mikrobiologi: 472en_US
dc.titleMethane-fuelled biofilms predominantly composed of methanotrophic ANME-1 in Arctic gas hydrate-related sedimentsen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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