title: Colicin production/resistance associated with R-plasmids of Gram negative bacteria isolated from poultry in Karachi.
abstract: R plasmids of Gram negative bacteria isolated from poultry in Karachi were studied for their properties of colicin production and resistance. Of 39 R plasmids studied, 23 resisted colicin where as only one R-plasmid produced colicin.
authors.affiliation: Department of Microbiology, University of Karachi, Karachi-75270.
authors.forename: F A
authors.initials: FA
authors.lastname: Ansari
authors.forename: H
authors.initials: H
authors.lastname: Khatoon