Näytä suppeat kuvailutiedot

dc.contributor.authorRissanen, Antti Juhani
dc.contributor.authorTiirola, Marja
dc.contributor.authorOjala, Anne
dc.date.accessioned2012-11-02T10:24:46Z
dc.date.available2012-11-02T10:24:46Z
dc.date.issued2011
dc.identifier.citationRissanen, A., Tiirola, M., & Ojala, A. (2011). Spatial and temporal variation in denitrification and in the denitrifier community in a boreal lake. Aquatic Microbial Ecology, 64 (1), 27-40. doi:10.3354/ame01506
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/40158
dc.description.abstractWe investigated the spatial and temporal variation in denitrification rates (isotope-­pairing technique, IPT) and in the denitrifier community (examination of gene nirK by denaturing-gradient gel electrophoresis [DGGE] of microbial DNA) in the sediments of a boreal, clear-water, eutrophic lake using samples collected from shallow littoral, deep littoral and shallow profundal ­sediments during early summer, mid-summer, autumn and winter. The measured denitrification rates (44 to 613 µmol N m−² d−¹) are among the lowest ever reported from lacustrine sediments. Denitri­fi­cation rates varied both spatially and temporally, being highest in the profundal zone during mid-­summer and in the littoral zones during winter. Correlation analyses indicated that these variations were due to variations in the concentrations of nitrate and oxygen in the water overlying the sediment. The structure of the denitrifier community was temporally extremely stable and differed only slightly between the sites. Distance-based linear model (DISTLM) analysis indicated that the observed variation was probably due mainly to variations in the content of organic matter, and in the porosity, of the sediment. The structure of the denitrifier community and the denitrifying activities were uncoupled.fi
dc.language.isoeng
dc.publisherInter Research
dc.relation.ispartofseriesAquatic Microbial Ecology
dc.relation.urihttp://www.int-res.com/journals/ame/ame-home/
dc.subject.otherdenitrificationen
dc.subject.otherlakeen
dc.subject.othersedimenten
dc.subject.othernirKen
dc.subject.otherbacterial diversityen
dc.subject.otherborealen
dc.subject.otherdenitrifikaatiofi
dc.subject.otherjärvifi
dc.subject.othersedimenttifi
dc.subject.othernirKfi
dc.subject.otherbakteeridiversiteettifi
dc.subject.otherboreaalinenfi
dc.titleSpatial and temporal variation in denitrification and in the denitrifier community in a boreal lake
dc.typeArticle
dc.identifier.urnURN:NBN:fi:jyu-201211022844
dc.contributor.laitosBio- ja ympäristötieteiden laitosfi
dc.contributor.laitosDepartment of Biological and Environmental Scienceen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.identifier.doi10.3354/ame01506
dc.type.coarjournal article
dc.description.reviewstatuspeerReviewed
dc.relation.issn0948-3055
dc.type.versionpublishedVersion
dc.rights.copyright© 2011 Inter-Research
dc.rights.accesslevelopenAccessfi


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