Methanocalculus

Methanocalculus is a genus of archaeans in the order Methanomicrobiales, and is known to include methanogens.^[1]

Methanocalculus
Scientific classification
Domain:	Archaea
Kingdom:	Methanobacteriati
Phylum:	Methanobacteriota
Class:	"Methanomicrobia"
Order:	Methanomicrobiales
Family:	Methanocorpusculaceae
Genus:	Methanocalculus Ollivier et al. 1998
Type species
Methanocalculus halotolerans Ollivier et al. 1998
Species
M. alkaliphilus M. chunghsingensis M. halotolerans M. natronophilus M. pumilus M. taiwanensis

The genome of Methanocalculus is somewhat different from other genera of methanogenic archaea, with less than 90% 16S ribosomal RNA similarity.^[2] The species within Methanocalculus also have a greater tolerance to salt than other microorganisms, and they can live at salt concentrations as high as 125 g/L.^[3] Some species within Methanocalculus are neutrophiles, and Methanocalculus natronophilus, discovered in 2013, is a strict alkaliphile.^[2]

Nomenclature

The name "Methanocalculus" has Latin roots: "methano" for methane and "calculus" for gravel. Overall, it means gravel-shaped organism that produces methane.^[3]

Phylogeny

The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN)^[4] and National Center for Biotechnology Information (NCBI).^[1]

16S rRNA based LTP_06_2022[5][6][7]	53 marker proteins based GTDB 08-RS214[8][9][10]
Methanocalculus M. alkaliphilus Sorokin et al. 2015 M. chunghsingensis Lai et al. 2004 M. halotolerans Ollivier et al. 1998 M. natronophilus Zhilina et al. 2014 M. pumilus Mori et al. 2000 M. taiwanensis Lai et al. 2002	Methanocalculus M. alkaliphilus M. chunghsingensis M. natronophilus M. taiwanensis

See also

• List of Archaea genera