粪肠球菌ATCC 9790中的青霉素耐受性
Penicillin tolerance in Streptococcus faecium ATCC 9790.
作者信息
Said I, Fletcher H, Volpe A, Daneo-Moore L
机构信息
Department of Microbiology and Immunology, Temple University School of Medicine, Philadelphia, Pennsylvania 19140.
出版信息
Antimicrob Agents Chemother. 1987 Jul;31(7):1150-2. doi: 10.1128/AAC.31.7.1150.
Abstract
Tolerant strains of Streptococcus faecium had higher levels of muramidase 2 and lower levels of trypsinactivable muramidase 1 than did susceptible strains. Susceptible strains lysed faster than did tolerant strains in buffer and at some antibiotic concentrations. The addition of Triton X-100 produced equal lysis rates for susceptible and tolerant cultures.
摘要
与敏感菌株相比，屎肠球菌的耐受菌株具有更高水平的溶菌酶2和更低水平的胰蛋白酶可激活溶菌酶1。在缓冲液中以及某些抗生素浓度下，敏感菌株比耐受菌株裂解得更快。添加 Triton X-100后，敏感培养物和耐受培养物的裂解速率相同。
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