EVIDENCE THAT ESCHERICHIA-COLI ISOLATED FROM THE INTESTINE OF HEALTHY PIGS HYBRIDIZE WITH LT-II, ST-IB AND SLT-II DNA PROBES

被引：14

作者：

CELEMIN, C ^{[1
]}

ANGUITA, J ^{[1
]}

NAHARRO, G ^{[1
]}

SUAREZ, S ^{[1
]}

机构：

[1] UNIV LEON, FAC VET, DEPT SANIDAD ANIM, UNIDAD MICROBIOL & IMMUNOL, E-24071 LEON, SPAIN

来源：

MICROBIAL PATHOGENESIS | 1994年 / 16卷 / 01期

关键词：

ESCHERICHIA-COLI; ENTEROTOXINS; DNA PROBES; PORCINE COLIBACILLOSIS;

D O I：

10.1006/mpat.1994.1008

中图分类号：

R392 [医学免疫学]; Q939.91 [免疫学];

学科分类号：

100102 ;

摘要：

A DNA probe specific for genes coding for the heat-labile toxin type 11 (LT-II), heat-stable toxin type Ib (ST-Ib) and Shiga-like toxin type 11 (SLT-II), were used to examine 118 fecal Escherichia coli strains isolated from healthy pigs. Fifty-six (47.4%) of the isolated were hybridized with the LT-II probe. Thirty-nine strains (33%) possessed ST-Ib genes and five of the 118 isolates (4.2%) showed homology with the SLT-II DNA probe. E. coli that possessed unusual toxin genes for pigs were isolated with a high frequency, which indicates the importance of toxigenic clones found in nature. Uncommon virulence factors should be examined in order to improve the efficiency of diagnosis and control procedures. © 1994 Academic Press.

引用

页码：77 / 81

页数：5

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