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1·The relationship between penicillin resistance and R plasmid was discussed.

对菌株的青霉素耐药现象和耐药性质粒的关系进行了讨论。

2·Objective To study the relationship between the resistance R plasmid and both pili and adherence of Pseudomonas aeruginosa strain, PA36.

目的：检测铜绿假单胞菌耐药株PA36的耐药性R质粒与菌毛及粘附性的关系。

3·The R plasmid curing experiment was performed in Shigella strain, F_(13), which used as a target bacteria bearing R plasmid with Huangqin, a traditional chinese herb, as a elimination agent in vitro.

以携带R质粒的痢疾杆菌F_（13）株为靶细菌，以黄芩甙作为R质粒消除剂，进行R质粒体外消除试验。

4·The sulfonamides, streptomycin, chloramphenicol and other sensitive, but easy to resistance, with R factor is the transfer of plasmid obtained.

对磺胺类、链霉素、氯霉素等敏感，但易耐药，是由带有R因子的质粒转移而获得的。