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Appl Environ Microbiol. 2006 Aug;72(8):5648-52.

Carbon isotope fractionation during acetoclastic methanogenesis by Methanosaeta concilii in culture and a lake sediment.

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  • 1Max Planck Institute for Terrestrial Microbiology, Karl-von-Frisch Str., 35043 Marburg, Germany.

Abstract

The isotope enrichment factors (epsilon) in Methanosaeta concilii and in a lake sediment, where acetate was consumed only by Methanosaeta spp., were clearly less negative than the epsilon usually observed for Methanosarcina 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 epsilon of Methanosaeta spp. was used.

PMID:
16885323
[PubMed - indexed for MEDLINE]
PMCID:
PMC1538750
Free PMC Article
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