title: Hydrogenase activity in nitrogen-fixing methane-oxidizing bacteria.
abstract: Hydrogenase activity in cells of the nitrogen-fixing methane-oxidizing bacterium strain 41 of the Methylosinus type increased markedly when growth was dependent upon the fixation of gaseous nitrogen. A direct relationship may exist between hydrogenase and nitrogenase in this bacterium. Acetylene reduction was supported by the presence of hydrogen gas.
mesh_terms: D000114:Acetylene / Q000378:metabolism; D006859:Hydrogen / Q000378:metabolism; D008697:Methane / Q000378:metabolism; D008772:Methylococcaceae / Q000201:enzymology* / Q000378:metabolism; D009586:Nitrogen Fixation; D009591:Nitrogenase / Q000378:metabolism; D010084:Oxidation-Reduction; D010088:Oxidoreductases / Q000378:metabolism*
chemical_list: D006859:Hydrogen; D010088:Oxidoreductases; D009591:Nitrogenase; D000114:Acetylene; D008697:Methane