title: Isolation of round-cell mutants of Salmonella typhimurium.
mesh_terms: D000560:Amdinocillin / Q000494:pharmacology; D002455:Cell Division; D005798:Genes, Bacterial; D008040:Genetic Linkage; D006639:Histidine / Q000096:biosynthesis; D009154:Mutation; D009876:Operon; D012486:Salmonella typhimurium / Q000166:cytology / Q000235:genetics* / Q000302:isolation & purification
chemical_list: D006639:Histidine; D000560:Amdinocillin