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Methylococcus capsulatus : ウィキペディア英語版 | Methylococcus capsulatus
''Methylococcus capsulatus'' is an obligately methanotrophic gram-negative, non-motile coccoid bacterium. ''M. capsulatus'' cells are encapsulated and tend to have a diplococcoid arrangement. In addition to methane, ''M. capsulatus'' is able to oxidize some organic hydrogen containing compounds such as methanol. ''M. capsulatus'' has also been demonstrated to be thermotolerant- that is, it can grow well up to 50°C, though its optimum growth temperature is 37°C. In addition, ''M. capsulatus'' can live in conditions in which there is little molecular oxygen available. ''Methylococcus capsulatus'' is a Type I methanotroph, meaning that it is a member of the Gammaproteobacteria and that it utilizes the ribulose monophosphate pathway (RuMP) for formaldehyde assimilation. Methane is first oxidized to methanol, which then gets converted into formaldehyde. Formaldehyde can then be 1) further oxidized to formate and carbon dioxide for energy production or 2) assimilated into biomass. The genome sequence of ''M. capsulatus'' (Bath) is available. Various strains of ''M. capsulatus'' have been isolated and studied, particularly ''M. capsulatus'' (Bath), ''M. capsulatus'' (Texas) and ''M. capsulatus'' (Aberdeen). == References ==
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