title: Immunological studies with nitrogenase from Azotobacter and bacterial nitrate reductases.
mesh_terms: D000907:Antibodies, Bacterial / Q000302:isolation & purification; D000918:Antibody Specificity; D000942:Antigens, Bacterial / Q000302:isolation & purification; D001395:Azotobacter / Q000276:immunology*; D003429:Cross Reactions; D004926:Escherichia coli / Q000276:immunology; D005779:Immunodiffusion; D009565:Nitrate Reductases / Q000276:immunology*; D009591:Nitrogenase / Q000276:immunology*
chemical_list: D000907:Antibodies, Bacterial; D000942:Antigens, Bacterial; D009591:Nitrogenase; D009565:Nitrate Reductases