Antibiotic susceptibilities of P. aeruginosa strains to piperacillin, cefotaxime, ceftazidime, and ciprofloxacin.

aMICs shown in parentheses were obtained with 1 mM MgSO4 in the assay.N/A; efflux-deficient bacteria do not grow on Mueller-Hinton agar containing 25, or 50 µg/mL PAβN with or without 1 mM MgSO4.

括号内标注的调整后最低抑菌浓度（aMICs）是在测定体系添加1毫摩尔/升硫酸镁（MgSO4）的条件下测得的。不适用；外排缺陷型细菌无法在含有25或50微克/毫升PAβN，且添加或不添加1毫摩尔/升硫酸镁（MgSO4）的穆勒-辛顿琼脂（Mueller-Hinton agar）上生长。