title: [Dwarf colony mutants of Escherichia coli: plasmids resistant to antibiotics].
abstract: Deficient dwarf colony (DDC) mutants of E. coli K 12, harboring or no resistance plasmids, were obtained in vitro. The R plasmids of parental strains and to DDC mutants were transfered by conjugation to normal colony, and to DDC mutants of E. coli K 12; the frequencies of transfer were similar for all strains studied.
mesh_terms: D002701:Chloramphenicol / Q000494:pharmacology*; D004352:Drug Resistance, Microbial; D004926:Escherichia coli / Q000187:drug effects / Q000235:genetics*; D009154:Mutation / Q000187:drug effects; D010957:Plasmids; D013307:Streptomycin / Q000494:pharmacology*; D013449:Sulfonamides / Q000494:pharmacology*
chemical_list: D013449:Sulfonamides; D002701:Chloramphenicol; D013307:Streptomycin
vernacular_title: Mutants déficients à colonies naines d'Escherichia coli: étude des plasmides de résistance aux antibiotiques.