Korfhagen T R, Loper J C
Antimicrob Agents Chemother. 1975 Jan;7(1):69-73. doi: 10.1128/AAC.7.1.69.
R factor RPL11 from Pseudomonas aeruginosa determines multiple drug resistance including resistance to gentamicin and carbenicillin. The host range and incompatibility properties of RPL11 are those of incompatibility group P-2. Strains harboring the factor are not altered with respect to the major immunotypes 1 through 7 of Parke-Davis, or with respect to pyocin type by using the 18 indicators of Jones and co-workers. Analytical ultracentrifugation of crude extracts of R factor-containing strains shows a band of satellite DNA with a buoyant density of 1.717 g/cm(3).
来自铜绿假单胞菌的R因子RPL11决定了多重耐药性,包括对庆大霉素和羧苄青霉素的耐药性。RPL11的宿主范围和不相容性特性属于不相容性P-2组。携带该因子的菌株在Parke-Davis的主要免疫型1至7方面,或在使用Jones及其同事的18种指示菌的情况下在绿脓菌素类型方面均未发生改变。对含有R因子的菌株粗提物进行分析超速离心,结果显示出一条卫星DNA带,其浮力密度为1.717 g/cm³。