VIRULENCE-ASSOCIATED PLASMIDS IN RHODOCOCCUS-EQUI

被引:106
|
作者
TAKAI, S [1 ]
WATANABE, Y [1 ]
IKEDA, T [1 ]
OZAWA, T [1 ]
MATSUKURA, S [1 ]
TAMADA, Y [1 ]
TSUBAKI, S [1 ]
SEKIZAKI, T [1 ]
机构
[1] NATL INST ANIM HLTH,TSUKUBA,IBARAKI 305,JAPAN
关键词
D O I
10.1128/JCM.31.7.1726-1729.1993
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Twenty-three strains of Rhodococcus equi from independent clinical cases were analyzed for the presence of virulence plasmid DNA. Of the clinical isolates, 19 contained an 85-kb plasmid and the remaining 4 contained a 90-kb plasmid. All of the isolates expressed 15- to 17-kDa antigens and were virulent in mice. Restriction enzyme and Southern blot analyses showed large regions of DNA homology between the 85- and 90-kb virulence plasmids. It was concluded tentatively that there are at least two virulence plasmids in R. equi and that they have a common origin.
引用
收藏
页码:1726 / 1729
页数:4
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