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Characteristics of a Colicin Plasmid in Escherichia coli Strain B177 Isolated from a Septicemic Calf
Author(s) -
Harasawa Ryô,
Miura Hiroyuki,
Kaneuchi Choji
Publication year - 1988
Publication title -
microbiology and immunology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.664
H-Index - 70
eISSN - 1348-0421
pISSN - 0385-5600
DOI - 10.1111/j.1348-0421.1988.tb01464.x
Subject(s) - colicin , plasmid , escherichia coli , biology , microbiology and biotechnology , siderophore , strain (injury) , enterobacteriaceae , transposable element , mutant , bacteria , genetics , gene , anatomy
A colicin plasmid in Escherichia coli strain B177 isolated from a septicemic calf was characterized. The colicin type was identified as ColV by using reference ColV producers. The colicin plasmid was labeled with transposon Tn 903 and subjected to conjugation. The transconjugants examined suggest that the colicin plasmid confers serum resistance. There was no difference in siderophore utilization ability between the transconjugants and host strain SF800. Bioassay for siderophore suggests that the colicin plasmid specifies the production of iron‐chelating compounds available for the host strain.