Cloned fragments of the plasmid ColV,I-K94 specifying virulence and serum resistance. |
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| Authors: | M M Binns D L Davies K G Hardy |
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| Abstract: | A cloned BamH1-generated fragment of ColV,I-K94 increased the virulence of Escherichia coli, causing an approximately 100-fold reduction in LD50 for chicks. A genetic determinant for resistance to the bactericidal effects of serum was mapped to a 5,300 base-pair sequence within the fragment. Neither colicin V nor immunity to colicin V affected the pathogenicity of E. coli for chicks. |
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