1887

Abstract

We have isolated a strain of from chicken caeca which produces two E colicins and colicin M. This strain has seven plasmids, five of which have been transferred to K12. Two K12 derivatives which produce the two E colicins separately have been tested against seven standard E colicin producing strains which define seven different immunity groups. Our results indicate that these new E colicins define two further immunity groups, E8 and E9.

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/content/journal/micro/10.1099/00221287-130-1-209
1984-01-01
2021-10-23
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