title: Evolution of nitrogen fixation.
authors.forename: Kenneth M
authors.initials: KM
authors.lastname: Towe
mesh_terms: D000693:Anaerobiosis; D001105:Archaea / Q000378:metabolism*; D001421:Bacteria, Anaerobic / Q000378:metabolism*; D005075:Biological Evolution; D000458:Cyanobacteria / Q000378:metabolism*; D009586:Nitrogen Fixation; D010084:Oxidation-Reduction; D010100:Oxygen / Q000378:metabolism; D000644:Quaternary Ammonium Compounds / Q000378:metabolism
chemical_list: D000644:Quaternary Ammonium Compounds; D010100:Oxygen