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Large plasmids of avian Escherichia coli isolates.

作者信息

Doetkott D M, Nolan L K, Giddings C W, Berryhill D L

机构信息

Department of Veterinary and Microbiological Sciences, North Dakota State University, Fargo 58105, USA.

出版信息

Avian Dis. 1996 Oct-Dec;40(4):927-30.

PMID:8980827
Abstract

The plasmid DNA of 30 Escherichia coli isolates from chickens was extracted and examined using techniques designed to isolate large plasmids. This plasmid DNA was examined for the presence of certain known virulence-related genes including cvaC, traT, and some aerobactin-related sequences. Seventeen of the 30 isolates contained from one to four plasmids greater than 50 kb in size. Eleven of these 17 strains possessed plasmids greater than 100 kb in size. Therefore, E. coli isolates of chickens frequently contain large plasmids, and many of these plasmids are likely to contain virulence-related sequences.

摘要

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