Methylosphaera hansonii

Methylosphaera hansonii
Scientific classification
Domain: Bacteria
Kingdom: Pseudomonadati
Phylum: Pseudomonadota
Class: Gammaproteobacteria
Order: Methylococcales
Family: Methylococcaceae
Genus: Methylosphaera
Species:
M. hansonii
Binomial name
Methylosphaera hansonii
J.P.Bowman et al. 1997

Methylosphaera hansonii, also called Antarctic budding methanotroph AM6, is a species of psychrophilic, group I methanotrophs, named after microbiologist Richard S. Hanson. It is non-motile, coccoidal in morphology, does not form resting cells, reproduces by constriction, and requires seawater for growth. Its type strain is ACAM 549.

The cells are round and 1.5–2.0 μm in diameter. They are Gram-negative, non-motile, and strictly aerobic. They use methane and methanol as substrates to produce energy, and they can fix atmospheric nitrogen.