Role of methanogens and other bacteria in degradation of dimethyl sulfide and methanethiol in anoxic freshwater sediments

Article Abstract:

The degradation of methanethiol (MT) and dimethyl sulfide (DMS) in freshwater sediments was examined in greater detail, with specific focus on the methanogenic population and other bacteria that can utilize DMS or MT. Among the results are that methanogens are also consumers of methanol and MT, aside from degrading DMS and that sulfate-reducing bacteria, aside from methanogens, are involved in MT and DMS degradation in freshwater sediments, as long as sulfate is available. In general, results offer evidence for methanogenesis as a major sink for MT and DMS in freshwater sediments.

Marine sediments, Dimethyl sulfide

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Isolation and characterization of Methanomethylovorans hollandica gen. nov., sp. nov., isolated from freshwater sediment, a methylotrophic methanogen able to grow on dimethyl sulfide and methanethiol

Article Abstract:

Researchers describe the properties of a new genus of methanogen, Methanomethylovorans hollandica. This organism was isolated from freshwater sediment and most likely degrades methanethiol and dimethyl sulfide in this environment.

Identification and classification

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Microbial populations involved in cycling of dimethyl sulfide and methanethiol in freshwater sediments

Article Abstract:

A study of the biodegradation of methanethiol and dimethyl sulfide in freshwater sediments shows that the predominant organisms that degrade these chemicals are closely related phylogenetically to Methanomethylovorans hollandica.

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