title: The influence of canavanine, oxygen, and urea on the steady-state levels of nitrogenase in Anabaena flos-aquae.
mesh_terms: D002172:Canavanine / Q000494:pharmacology*; D002245:Carbon Dioxide / Q000378:metabolism; D002701:Chloramphenicol / Q000494:pharmacology; D000458:Cyanobacteria / Q000201:enzymology* / Q000378:metabolism; D003624:Darkness; D004794:Enzyme Repression / Q000187:drug effects; D005288:Ferredoxins; D006706:Homeostasis / Q000187:drug effects; D008027:Light; D009586:Nitrogen Fixation; D010088:Oxidoreductases / Q000037:antagonists & inhibitors / Q000096:biosynthesis / Q000378:metabolism*; D010100:Oxygen / Q000494:pharmacology*; D000644:Quaternary Ammonium Compounds / Q000494:pharmacology; D013997:Time Factors; D014508:Urea / Q000494:pharmacology*
chemical_list: D005288:Ferredoxins; D000644:Quaternary Ammonium Compounds; D002245:Carbon Dioxide; D002172:Canavanine; D002701:Chloramphenicol; D014508:Urea; D010088:Oxidoreductases; D010100:Oxygen