title: Genetics and regulation of nitrogen fixation.
mesh_terms: D000641:Ammonia / Q000494:pharmacology; D001395:Azotobacter / Q000235:genetics; D001419:Bacteria / Q000235:genetics* / Q000378:metabolism; D002874:Chromosome Mapping; D005786:Gene Expression Regulation; D005798:Genes, Bacterial; D007711:Klebsiella pneumoniae / Q000235:genetics; D009584:Nitrogen / Q000378:metabolism; D009586:Nitrogen Fixation; D009591:Nitrogenase / Q000235:genetics; D010100:Oxygen / Q000494:pharmacology; D012231:Rhizobium / Q000235:genetics; D013559:Symbiosis; D013696:Temperature; D014158:Transcription, Genetic
chemical_list: D000641:Ammonia; D009591:Nitrogenase; D009584:Nitrogen; D010100:Oxygen