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本文按Szylalsky 方法将对头孢哌酮(Cefoper-zone)、头孢他啶(Ceftazidime)、噻肟单酰胺菌素(Az-threonam)和亚氨甲硫霉素(Imipenem)均敏感(其中1株对头孢哌酮的药敏为50μg/ml)的10株绿脓杆菌涂布于含有前述药物[单独和与诱导剂氨苄青霉素或头孢西丁(Cefoxifin)联合]和/或丁胺卡那霉素的琼脂平皿上,观察细菌耐药突变株的发生情况。结果显示,突变株的形成取决于菌株对抗生素的敏感度、抗菌活性以及诱导剂或阿米卡星(Amikacin)的存在与否有关。如对药物高度敏感的绿脓杆菌DECO 在各种药物平皿中无一突变菌落;在亚胺硫霉素平皿中仅有少数的突变菌
The Szylalsky method will be sensitive to Cefoper-zone, Ceftazidime, Az-threonam and Imipenem (1 of them to cefoperazone 10 strains of Pseudomonas aeruginosa with a drug susceptibility of 50 μg / ml) was coated on an agar plate containing the aforementioned drug [alone and in combination with the inducer ampicillin or cefoxifin] and / or amikacin On the observation of the occurrence of bacterial drug-resistant mutants. The results showed that the formation of mutant strains depends on the sensitivity of the strain to antibiotics, antibacterial activity and the presence of inducer or Amikacin. For example, the highly drug-resistant Pseudomonas aeruginosa DECO did not have a mutant colony in a variety of drug plates; only a few of the mutants in the imipenem plate