Show simple item record

dc.contributor.author
Oswald, Kirsten
dc.contributor.author
Milucka, Jana
dc.contributor.author
Brand, Andreas
dc.contributor.author
Littmann, Sten
dc.contributor.author
Wehrli, Bernhard
dc.contributor.author
Kuypers, Marcel M.M.
dc.contributor.author
Schubert, Carsten J.
dc.date.accessioned
2018-08-02T08:46:35Z
dc.date.available
2017-06-11T18:55:54Z
dc.date.available
2018-08-02T08:46:35Z
dc.date.issued
2015-07-20
dc.identifier.issn
1932-6203
dc.identifier.other
10.1371/journal.pone.0132574
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/103519
dc.identifier.doi
10.3929/ethz-b-000103519
dc.description.abstract
Lakes are a natural source of methane to the atmosphere and contribute significantly to total emissions compared to the oceans. Controls on methane emissions from lake surfaces, particularly biotic processes within anoxic hypolimnia, are only partially understood. Here we investigated biological methane oxidation in the water column of the seasonally stratified Lake Rotsee. A zone of methane oxidation extending from the oxic/anoxic interface into anoxic waters was identified by chemical profiling of oxygen, methane and δ13C of methane. Incubation experiments with 13C-methane yielded highest oxidation rates within the oxycline, and comparable rates were measured in anoxic waters. Despite predominantly anoxic conditions within the zone of methane oxidation, known groups of anaerobic methanotrophic archaea were conspicuously absent. Instead, aerobic gammaproteobacterial methanotrophs were identified as the active methane oxidizers. In addition, continuous oxidation and maximum rates always occurred under light conditions. These findings, along with the detection of chlorophyll a, suggest that aerobic methane oxidation is tightly coupled to light-dependent photosynthetic oxygen production both at the oxycline and in the anoxic bottom layer. It is likely that this interaction between oxygenic phototrophs and aerobic methanotrophs represents a widespread mechanism by which methane is oxidized in lake water, thus diminishing its release into the atmosphere.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Public Library of Science
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.title
Light-Dependent Aerobic Methane Oxidation Reduces Methane Emissions from Seasonally Stratified Lakes
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
ethz.journal.title
PLoS ONE
ethz.journal.volume
10
en_US
ethz.journal.issue
7
en_US
ethz.journal.abbreviated
PLoS ONE
ethz.pages.start
e0132574
en_US
ethz.size
22 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.identifier.nebis
006206116
ethz.publication.place
San Francisco, CA
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich, direkt::00012 - Lehre und Forschung, direkt::00007 - Departemente, direkt::02350 - Departement Umweltsystemwissenschaften / Department of Environmental Systems Science::02721 - Institut für Biogeochemie und Schadstoffdynamik (IBP) / Institute of Biogeochemistry and Pollutant Dynamics (IBP)::03328 - Wehrli, Bernhard
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich, direkt::00012 - Lehre und Forschung, direkt::00007 - Departemente, direkt::02350 - Departement Umweltsystemwissenschaften / Department of Environmental Systems Science::02721 - Institut für Biogeochemie und Schadstoffdynamik (IBP) / Institute of Biogeochemistry and Pollutant Dynamics (IBP)::03328 - Wehrli, Bernhard
ethz.date.deposited
2017-06-11T18:56:27Z
ethz.source
ECIT
ethz.identifier.importid
imp5936536972f2985474
ethz.ecitpid
pub:161767
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-07-14T23:23:30Z
ethz.rosetta.lastUpdated
2018-08-02T08:46:40Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.atitle=Light-Dependent%20Aerobic%20Methane%20Oxidation%20Reduces%20Methane%20Emissions%20from%20Seasonally%20Stratified%20Lakes&rft.jtitle=PLoS%20ONE&rft.date=2015-07-20&rft.volume=10&rft.issue=7&rft.spage=e0132574&rft.issn=1932-6203&rft.au=Oswald,%20Kirsten&Milucka,%20Jana&Brand,%20Andreas&Littmann,%20Sten&Wehrli,%20Bernhard&rft.genre=article&
 Search via SFX

Files in this item

Thumbnail

Publication type

Show simple item record