Journal
FEMS MICROBIOLOGY ECOLOGY
Volume 68, Issue 2, Pages 131-141Publisher
OXFORD UNIV PRESS
DOI: 10.1111/j.1574-6941.2009.00663.x
Keywords
carbon monoxide; anaerobic carboxydotrophic thermophiles; hydrogenogens; CO dehydrogenases; CODH-ECH gene clusters
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Funding
- Presidium of the Russian Academy of Sciences 'Molecular and Cell Biology'
- Technology Foundation STW
- NWO
- Netherlands, Shell Global Solutions (Amsterdam, the Netherlands)
- Paques B.V. (Balk, the Netherlands)
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Both natural and anthropogenic hot environments contain appreciable levels of carbon monoxide (CO). Anaerobic microbial communities play an important role in CO conversion in such environments. CO is involved in a number of redox reactions. It is biotransformed by thermophilic methanogens, acetogens, hydrogenogens, sulfate reducers, and ferric iron reducers. Most thermophilic CO-oxidizing anaerobes have diverse metabolic capacities, but two hydrogenogenic species are obligate carboxydotrophs. Among known thermophilic carboxydotrophic anaerobes, hydrogenogens are most numerous, and based on available data they are most important in CO biotransformation in hot environments.
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