Methanospirillum

Methanospirillum is a genus of microbes within the family Methanospirillaceae.^[1] All its species are methanogenic archaea. The cells are bar-shaped and form filaments. Most produce energy via the reduction of carbon dioxide with hydrogen, but some species can also use formate as a substrate. They are Gram-negative and move using archaella on the sides of the cells. They are strictly anaerobic, and they are found in wetland soil and anaerobic water treatment systems.^[2]

Methanospirillum
Scientific classification
Domain:	Archaea
Kingdom:	Methanobacteriati
Phylum:	Halobacteriota
Class:	Methanomicrobia
Order:	Methanomicrobiales
Family:	Methanospirillaceae
Genus:	Methanospirillum Ferry, Smith & Wolfe 1974
Type species
Methanospirillum hungatei corrig. Ferry, Smith & Wolfe 1974
Species
M. hungatei M. lacunae M. psychrodurum M. stamsii

Phylogeny

The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN)^[3] and National Center for Biotechnology Information (NCBI).^[1]

16S rRNA-based LTP_01_2022[4][5][6]	53 marker proteins based GTDB 07-RS207[7][8][9]
M. lacunae Iino, Mori & Suzuki 2010 M. psychrodurum Zhou, Liu & Dong 2014 M. hungatei corrig. Ferry, Smith & Wolfe 1974 M. stamsii Parshina et al. 2014	M. lacunae M. hungatei M. stamsii

See also

• List of Archaea genera