过去曾经认为青霉素等抗生素破坏细菌细胞壁的合成 ,导致细胞壁薄弱 ,最终爆裂而引起细菌死亡。近十年来 ,生物学家才知道青霉素激活了细菌自身的自溶酶 ,该酶溶解了细菌的细胞壁。实际上 ,几乎所有的抗生素都间接地引起细菌这种自杀行为 :自溶酶反应。美国的一个研究组鉴定了 In the past, antibiotics such as penicillin were thought to disrupt bacterial cell wall synthesis, resulting in a weak cell wall that eventually burst causing bacterial death. For nearly a decade, biologists know that penicillin activates the bacterium’s own autolytic enzymes, which dissolve the bacterial cell wall. In fact, almost all antibiotics indirectly cause bacterial suicide: autolytic reaction. A US research team identified