Anaerobic oxidation of methane at a marine methane seep in a forearc sediment basin off Sumatra, Indian Ocean

Downloadstatistik des Dokuments (Auswertung nach COUNTER):

Siegert, Michael; Krueger, Martin; Teichert, Barbara; Wiedicke, Michael; Schippers, Axel: Anaerobic oxidation of methane at a marine methane seep in a forearc sediment basin off Sumatra, Indian Ocean. In: Frontiers in Microbiology 2 (2011), 249. DOI: http://dx.doi.org/10.3389/fmicb.2011.00249

Version im Repositorium

Zum Zitieren der Version im Repositorium verwenden Sie bitte diesen DOI: https://doi.org/10.15488/460

Zeitraum, für den die Download-Zahlen angezeigt werden:

Jahr: 
Monat: 

Summe der Downloads: 100




Kleine Vorschau
Zusammenfassung: 
A cold methane seep was discovered in a forearc sediment basin off the island Sumatra, exhibiting a methane-seep adapted microbial community. A defined seep center of activity, like in mud volcanoes, was not discovered. The seep area was rather characterized by a patchy distribution of active spots. The relevance of anaerobic oxidation of methane (AOM) was reflected by C-13-depleted isotopic signatures of dissolved inorganic carbon. The anaerobic conversion of methane to CO2 was confirmed in a C-13-labeling experiment. Methane fueled a vital microbial community with cell numbers of up to 4 x 10(9) cells cm(-3) sediment. The microbial community was analyzed by total cell counting, catalyzed reporter deposition fluorescence in situ hybridization (CARD FISH), quantitative real-time PCR (qPCR), and denaturing gradient gel electrophoresis (DGGE). CARD FISH cell counts and qPCR measurements showed the presence of Bacteria and Archaea, but only small numbers of Eukarya. The archaeal community comprised largely members of ANME-1 and ANME-2. Furthermore, members of the Crenarchaeota were frequently detected in the DGGE analysis. Three major bacterial phylogenetic groups (delta-Proteobacteria, candidate division OP9, and Anaerolineaceae) were abundant across the study area. Several of these sequences were closely related to the genus Desulfococcus of the family Desulfobacteraceae, which is in good agreement with previously described AOM sites. In conclusion, the majority of the microbial community at the seep consisted of AOM-related microorganisms, while the relevance of higher hydrocarbons as microbial substrates was negligible.
Lizenzbestimmungen: CC BY-NC 3.0
Publikationstyp: article
Publikationsstatus: publishedVersion
Erstveröffentlichung: 2011
Die Publikation erscheint in Sammlung(en):Naturwissenschaftliche Fakultät

Verteilung der Downloads über den gewählten Zeitraum:

Herkunft der Downloads nach Ländern:

Pos. Land Downloads
Anzahl Proz.
1 image of flag of Germany Germany 81 81,00%
2 image of flag of Russian Federation Russian Federation 4 4,00%
3 image of flag of France France 4 4,00%
4 image of flag of China China 3 3,00%
5 image of flag of Venezuela Venezuela 1 1,00%
6 image of flag of Netherlands Netherlands 1 1,00%
7 image of flag of Malaysia Malaysia 1 1,00%
8 image of flag of Sri Lanka Sri Lanka 1 1,00%
9 image of flag of Colombia Colombia 1 1,00%
10 image of flag of Switzerland Switzerland 1 1,00%
    andere 2 2,00%

Weitere Download-Zahlen und Ranglisten:


Hinweis

Zur Erhebung der Downloadstatistiken kommen entsprechend dem „COUNTER Code of Practice for e-Resources“ international anerkannte Regeln und Normen zur Anwendung. COUNTER ist eine internationale Non-Profit-Organisation, in der Bibliotheksverbände, Datenbankanbieter und Verlage gemeinsam an Standards zur Erhebung, Speicherung und Verarbeitung von Nutzungsdaten elektronischer Ressourcen arbeiten, welche so Objektivität und Vergleichbarkeit gewährleisten sollen. Es werden hierbei ausschließlich Zugriffe auf die entsprechenden Volltexte ausgewertet, keine Aufrufe der Website an sich.

Suche im Repositorium


Durchblättern