title: Nitrogen fixation by methane-utilizing bacteria.
mesh_terms: D000114:Acetylene / Q000378:metabolism; D008697:Methane / Q000378:metabolism*; D008772:Methylococcaceae / Q000378:metabolism* / Q000648:ultrastructure; D009586:Nitrogen Fixation; D010084:Oxidation-Reduction; D012988:Soil Microbiology; D014871:Water Microbiology
chemical_list: D000114:Acetylene; D008697:Methane