摘要：测定8株供试菌株对氨苄青霉素，四环素，链霉素，卡那霉素，利福平，头孢霉素，氯霉素的不同浓度的抗性反应。结果发现抗氨苄青霉素的菌株有PSB3，PSB4，PSB13，PSB26，PSB58，PSB67，PSB77；抗链霉素的菌株PSB4，PSB13，PSB26，抗卡那霉素的菌株PSB4，PSB26，PSB67，PSB77；PSB4，PSB26，PSB77菌株对四环素具有较强的抗性；PSB4，PSB13，PSB15，PSB26，PSB67，PSB77菌株对氯霉素具有较强的抗性；PSB3，PSB4，PSB26，PSB58，PSB77菌株对利福平有抗性，PSB77菌株对头孢霉素有较强抗性。解磷细菌对抗生素的抗性实验结果，可用于研究今后8株解磷细菌在土壤中的定殖状态。

Abstract:The resistant reaction of eight strains tested to different concentrations of ampicillin ，tetracycline, streptomycin，kanamycin ,rifampicin,cefotaxime and chloramphenicol is studied.And the results showed that PSB3，PSB4，PSB13，PSB26，PSB58，PSB67，PSB77 are ampicillin-resistant strains,and PSB4，PSB13，PSB26 streptomycin-resistant strains,PSB4，PSB26，PSB67，PSB77tetracycline-resistant strains, PSB,PSB13,PSB15,PSB26，PSB67,PSB77 chloramphenicol-resistant strains,PSB3,PSB,PSB26,PSB58,PSB77 rifampicin-resistant strains, and PSB77 cefotaxime-resistant strain.The results of resistance tests ofphosphate-solubilizing bacteria against antibiotics can be used to study colonization dynamics of the eight phosphate-solubilizing bacteriastrains in the soil.