Infectiveness of the histidine dependent mutant of Rhizobium trifolii.
D006639:Histidine / Q000378:metabolism; D009153:Mutagens / Q000494:pharmacology*; D009154:Mutation; D009603:Nitroso Compounds / Q000494:pharmacology; D012231:Rhizobium / Q000187:drug effects* / Q000302:isolation & purification
D009153:Mutagens; D009603:Nitroso Compounds; D006639:Histidine