Multidrug resistance is mediated by large plasmids carrying a class 1 integron in the emergent Salmonella enterica serotype [4,5,12:i:-]

被引:163
作者
Guerra, B [1 ]
Soto, SM [1 ]
Argüelles, JM [1 ]
Mendoza, MC [1 ]
机构
[1] Univ Oviedo, Fac Med, Dept Biol Func, Area Microbiol, E-33006 Oviedo, Spain
关键词
D O I
10.1128/AAC.45.4.1305-1308.2001
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
A multidrug-resistant Salmonella enterica serotype [4,5,12:i:-] clone carried a class 1 integron harboring dfrA12. and aadA2 gene cassettes and bla(TEM-1), aac(3)-IV, cmlA1, and tetA genes located in large plasmids of about 140 kb (carrying spy) or 120 kb (lacking spy). Several segregants, lacking multidrug resistance, contained a plasmid smaller than the parental one and no longer hybridized with probes for the lost resistances. The genes mediating resistance to ampicillin, chloramphenicol, and tetracycline in the [4,5,12:i:-] clone are different from those found in the pentadrug-resistant serotype Typhimurium DT104 clone.
引用
收藏
页码:1305 / 1308
页数:4
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