title: [Detection of F-like plasmids in serologically typed E. coli by the reactions of the donor-specific phage titre increase].
abstract: The authors studied 130 strains of serologically typed E. coli for the capacity to provide reproduction of donor-specific phages MS2, Qbeta, and f1; positive increase of the donor-specific phages reaction was found in 12 cases. Some of the detected L-like plasmides bore determinants of colicinogenicity or drug resistance. Such plasmides were transmissive and capable of inhibiting donor properties controlled by factor F'-lac+, i.e. they served as plasmides of type fi+.
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology; D001434:Bacteriophage Typing; D003090:Coliphages / Q000302:isolation & purification*; D003227:Conjugation, Genetic; D004926:Escherichia coli / Q000235:genetics*; D009268:Nalidixic Acid / Q000494:pharmacology; D010957:Plasmids / Q000187:drug effects; D012703:Serotyping; D013424:Sulfanilamides / Q000494:pharmacology
chemical_list: D000900:Anti-Bacterial Agents; D013424:Sulfanilamides; D009268:Nalidixic Acid
vernacular_title: Vyiavlenie F-podobnykh plazmid u serologicheski tipiruemykh E. coli po reaktsiiam narastaniia titrov donorspetsificheskikh fagov.