Methylicorpusculum

Abstract Me.thy.li.cor.pus'cu.lum. N.L. neut. n. methylum , the methyl residue; L. neut. n. corpusculum , a small body; N.L. neut. n. Methylicorpusculum , a methyl (residue)‐using small body. Proteobacteria / Gammaproteobacteria / Methylococcales / Methylococcaceae / Chelativorans The genus Methylicorpusculum accommodates aerobic obligate methane‐oxidizing bacteria that are capable of growing at pH of 6.5–8.4 (optimum 8.0). At present, this genus comprises one characterized representative. A draft genome sequence of the type strain ( M. oleiharenae XLMV4 T ) is available. Cells are beige to yellow‐pigmented Gram‐negative coccobacilli and are motile via a single polar flagellum. Growth occurs only on methane (CH 4 ) and methanol (CH 3 OH). Cells possess particulate methane monooxygenase (pMMO), and carbon is assimilated via the ribulose monophosphate pathway (RuMP). An extensive intracytoplasmic membrane system similar in arrangement to that of other gammaproteobacterial (Type I) methanotrophs is present. The genus Methylicorpusculum is phylogenetically associated with the class Gammaproteobacteria , family Methylococcaceae , and includes a single species, Methylicorpusculum oleiharenae . The only known habitat for these bacteria is an oil sands tailings pond in Northern Alberta, Canada. DNA G + C content (mol%) : 46.7 (genome analysis). Type species : Methylicorpusculum oleiharenae Saidi‐Mehrabad et al. 2020 VP .