Methanothrix soehngenii

Methanothrix soehngenii is a species of methanogenic archaea. Its cells are non-motile, non-spore-forming, rod-shaped (0.8×2 μm) and are normally combined end to end in long filaments, surrounded by a sheath-like structure. It is named in honour of N. L. Söhngen.^[1]

Methanothrix soehngenii
Scientific classification
Domain:	Archaea
Kingdom:	Methanobacteriati
Phylum:	Halobacteriota
Class:	Methanomicrobia
Order:	Methanosarcinales
Family:	Methanosaetaceae
Genus:	Methanothrix
Species:	M. soehngenii
Binomial name
Methanothrix soehngenii Huser et al., 1982

Metabolism

Unlike other methanogenic archaea, Methanothrix soehngenii cannot reduce carbon dioxide with hydrogen to produce methane. Its sole source of energy is acetate.^[2]

Genome

The tRNA^ala gene of Methanothrix soehngenii differs from those of other archaea in that it encodes a terminal CCA 3′.^[2]