title: [Production of mutants of Rhizobium trifolii with modified specificity].
mesh_terms: D009153:Mutagens; D009154:Mutation; D009607:Nitrosourea Compounds / Q000494:pharmacology; D011830:Radiation Effects; D012231:Rhizobium / Q000187:drug effects / Q000528:radiation effects; D014466:Ultraviolet Rays
chemical_list: D009153:Mutagens; D009607:Nitrosourea Compounds
vernacular_title: Poluchenie mutantov Rhizobium trifolii s izmenennoĭ spetsifichnost'iu.