Watanabe T, Furuse C, Sakaizumi S
J Bacteriol. 1968 Nov;96(5):1791-5. doi: 10.1128/jb.96.5.1791-1795.1968.
R factors fi(+) and fi(-), with various combinations of drug-resistance markers and isolated from independent sources, were transduced by phage P1kc in Escherichia coli and by phage P22 in Salmonella typhimurium. Usually the entire R factor was transduced by P1kc in E. coli, as indicated by the absence of segregation of the drug-resistance markers from their conjugal transferability. In contrast, the patterns of segregation of the drug-resistance markers and their conjugal transferability differed considerably among various R factors after transduction by P22 in S. typhimurium. Transduction frequencies varied among R factors in both transduction systems.
具有不同耐药性标记组合且从独立来源分离得到的R因子fi(+)和fi(-),在大肠杆菌中由噬菌体P1kc进行转导,在鼠伤寒沙门氏菌中由噬菌体P22进行转导。通常,P1kc在大肠杆菌中转导整个R因子,这表现为耐药性标记与其接合转移性之间不存在分离。相比之下,在鼠伤寒沙门氏菌中由P22转导后,不同R因子之间耐药性标记的分离模式及其接合转移性差异很大。在两个转导系统中,不同R因子的转导频率各不相同。