Novel bacterium 3446A oxidizes carbon monoxide via hydrogenogenesis, indicating unique evolutionary lineage.
An anaerobic, thermophilic hydrogenogenic carbon monoxide (CO)-oxidizing Bacillota bacterium, 3446A, was isolated from freshwater pond sediments in Kyoto, Japan. The 3.11-Mbp draft genome sequence (guanine-cytosine content, 50.4%) encodes CODH–ECH genes, consistent with hydrogenogenic CO oxidation. Phylogenomic analysis suggests that Bacillota bacterium 3446A represents a novel genus-level lineage within the family Thermicanaceae.
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