CHARACTERIZATION OF HIGHLY VIRULENT ESCHERICHIA-COLI STRAINS BY RIBOSOMAL DNA RESTRICTION-FRAGMENT-LENGTH-POLYMORPHISM

被引：17

作者：

PICARD, B

PICARDPASQUIER, N

KRISHNAMOORTHY, R

GOULLET, P

机构：

[1] UNIV PARIS 07,HOP BEAUJON,FAC MED XAVIER BICHAT,MICROBIOL LAB,100 BVD GEN LECLERC,F-92110 CLICHY,FRANCE

[2] HOP ROBERT DEBRE,INSERM,U120,PARIS,FRANCE

来源：

FEMS MICROBIOLOGY LETTERS | 1991年 / 82卷 / 02期

关键词：

ESCHERICHIA-COLI; VIRULENCE; ZYMOTYPE; RIBOTYPE;

D O I：

10.1111/j.1574-6968.1991.tb04862.x

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Patterns of ribosomal DNA polymorphism were examined to compare carboxylesterase B type B1 strains and B2 strains of Escherichia coli isolated from extra-intestinal infections. DNA from 14 type B2 strains showing the presence of alpha-haemolysin and mannose-resistant haemagglutinin and lethality to mice and 14 type B1 strains lacking these characteristics, was digested with HindIII, EcoRI, BamHI or BglII restriction enzymes and analysed by Southern blotting. The obtained ribotypes clearly differentiated the B2 strains from the B1 strains. These results indicate that genotypes of the highly virulent B2 strains are different from that of the less virulent B1 strains.

引用

页码：183 / 188

页数：6

共 29 条

[1] STRUCTURE AND COPY NUMBER OF GENE CLUSTERS RELATED TO THE PAP P-ADHESIN OPERON OF UROPATHOGENIC ESCHERICHIA-COLI [J].