title: The nitrogen fixation genes.
mesh_terms: D002874:Chromosome Mapping; D002876:Chromosomes, Bacterial; D005288:Ferredoxins / Q000096:biosynthesis; D005796:Genes; D005809:Genes, Regulator; D005815:Genetic Code; D008040:Genetic Linkage; D005827:Genetics, Microbial; D007709:Klebsiella / Q000201:enzymology*; D007711:Klebsiella pneumoniae / Q000201:enzymology; D008967:Molecular Biology; D009154:Mutation; D009586:Nitrogen Fixation; D009876:Operon; D010088:Oxidoreductases / Q000096:biosynthesis; D010945:Plants, Edible; D012231:Rhizobium / Q000201:enzymology / Q000378:metabolism; D013559:Symbiosis
chemical_list: D005288:Ferredoxins; D010088:Oxidoreductases