Datta N, Hedges R W, Shaw E J, Sykes R B, Richmond M H
J Bacteriol. 1971 Dec;108(3):1244-9. doi: 10.1128/jb.108.3.1244-1249.1971.
An R factor from Pseudomonas aeruginosa, which confers resistance to penicillins, kanamycin, and tetracycline, was studied in Escherichia coli K-12. The R factor could coexist with F-like or I-like plasmids and therefore constituted a novel compatibility group. The R factor was transferable from E. coli to bacterial genera outside the Enterobacteriaceae (Pseudomonas and members of the Rhizobiaceae) to which transfer of F-like and I-like plasmids could not be demonstrated.
对一株来自铜绿假单胞菌、赋予对青霉素、卡那霉素和四环素耐药性的R因子在大肠杆菌K-12中进行了研究。该R因子可与F样或I样质粒共存,因此构成了一个新的相容群。该R因子可从大肠杆菌转移至肠杆菌科以外的细菌属(假单胞菌属和根瘤菌科成员),而F样和I样质粒无法转移至这些细菌属。