Curing of R plasmids present in gram negative bacteria isolated from poultry in Karachi by ethidium bromide.
R plasmids of Gram negative bacteria isolated from poultry in Karachi were studied for their curing by ethidium bromide (EBr) in E. coli AB 712. Of 12 R plasmids studied, 3 were lost by treatment with ethidium bromide.
Ansari
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Department of Microbiology, University of Karachi, Karachi-75270.
Khatoon
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