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  • Title: [Anaerobic methane oxidation].
    Author: Gal'chenko VF.
    Journal: Mikrobiologiia; 2004; 73(5):698-707. PubMed ID: 15595522.
    Abstract:
    To clarify the biological mechanism of anaerobic methane oxidation, experiments were performed with samples of the Black Sea anaerobic sediments and with the aerobic methane-oxidizing bacterium Methylomonas methanica strain 12. The inhibition-stimulation analysis did not allow an unambiguous conclusion to be made about direct and independent role of either methanogenic or sulfate-reducing microorganisms in the biogeochemical process of anaerobic methane oxidation. Enrichment cultures obtained from samples of water and reduced sediments oxidized methane under anaerobic conditions, primarily in the presence of acetate or formate or of a mixture of acetate, formate, and lactate. However, this ability was retained by the cultures for no more than two transfers on corresponding media. Experiments showed that the aerobic methanotroph Mm. methanica strain 12 is incapable of anaerobic methane oxidation at the expense of the reduction of amorphous FeOOH.
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