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Acetate repression of methane oxidation by supplemental Methylocella silvestris in a peat soil microcosm.

Research paper by M Tanvir MT Rahman, Andrew A Crombie, Hélène H Moussard, Yin Y Chen, J Colin JC Murrell

Indexed on: 26 Apr '11Published on: 26 Apr '11Published in: Applied and environmental microbiology



Abstract

Methylocella spp. are facultative methanotrophs that grow on methane and multicarbon substrates, such as acetate. Acetate represses transcription of methane monooxygenase of Methylocella silvestris in laboratory culture. DNA stable-isotope probing (DNA-SIP) using (13)C-methane and (12)C-acetate, carried out with Methylocella-spiked peat soil, showed that acetate also repressed methane oxidation by Methylocella in environmental samples.