Carbon Isotope Fractionation during Acetoclastic Methanogenesis by Methanosaeta concilii in Culture and a Lake Sediment | Zendy

Holger Penning | Zendy; Peter Claus | Zendy; Peter Casper | Zendy; Ralf Conrad | Zendy

Open Access

Carbon Isotope Fractionation during Acetoclastic Methanogenesis by Methanosaeta concilii in Culture and a Lake Sediment

Author(s) -

Holger Penning,

Peter Claus,

Peter Casper,

Ralf Conrad

Publication year - 2006

Publication title -

applied and environmental microbiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.552

H-Index - 324

eISSN - 1070-6291

pISSN - 0099-2240

DOI - 10.1128/aem.00727-06

Subject(s) - methanosaeta , methanogenesis , environmental chemistry , methanosarcina , sediment , fractionation , biology , isotopes of carbon , methanosarcina barkeri , methane , chemistry , ecology , total organic carbon , chromatography , paleontology

The isotope enrichment factors (ε) inMethanosaeta concilii and in a lake sediment, where acetate was consumed only byMethanosaeta spp., were clearly less negative than the ε usually observed forMethanosarcina spp. The fraction of methane produced from acetate in the sediment, as determined by using stable isotope signatures, was 10 to 15% lower when the appropriate ε ofMethanosaeta spp. was used.

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