Affiliation:
1. Department of Microbiology, Keio University School of Medicine, Tokyo, Japan
Abstract
R factors
fi
+
and
fi
−
, with various combinations of drug-resistance markers and isolated from independent sources, were transduced by phage P1kc in
Escherichia coli
and by phage P22 in
Salmonella typhimurium
. Usually the entire R factor was transduced by P1kc in
E. coli
, as indicated by the absence of segregation of the drug-resistance markers from their conjugal transferability. In contrast, the patterns of segregation of the drug-resistance markers and their conjugal transferability differed considerably among various R factors after transduction by P22 in
S. typhimurium
. Transduction frequencies varied among R factors in both transduction systems.
Publisher
American Society for Microbiology
Subject
Molecular Biology,Microbiology
Cited by
111 articles.
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