Methanobacterium

Genus of archaea

Methanobacterium (from Latin methanum, meaning "methane", and bactērium) is a genus of the Methanobacteria class in the Archaea domain, which produce methane as a metabolic byproduct. Despite the name, this genus belongs not to the bacterial domain but the archaeal domain (for instance, they lack peptidoglycan in their cell walls). Methanobacterium are nonmotile and live without oxygen, which is toxic to them, and they only inhabit anoxic environments.

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