title: R factor transfer in Rhizobium leguminosarum.
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology; D002228:Carbenicillin / Q000494:pharmacology; D003227:Conjugation, Genetic; D003433:Crosses, Genetic; D003470:Culture Media; D003851:Deoxyribonucleases / Q000494:pharmacology; D004926:Escherichia coli / Q000187:drug effects; D005111:Extrachromosomal Inheritance; D009153:Mutagens; D009604:Nitrosoguanidines; D009608:Nitrous Acid; D010403:Penicillin Resistance; D011995:Recombination, Genetic; D012231:Rhizobium / Q000166:cytology / Q000187:drug effects*; D013104:Spheroplasts
chemical_list: D000900:Anti-Bacterial Agents; D003470:Culture Media; D009153:Mutagens; D009604:Nitrosoguanidines; D003851:Deoxyribonucleases; D002228:Carbenicillin; D009608:Nitrous Acid