Fasihuddin Ahmed Ansari, Hajra Khatoon.
Colicin production/resistance associated with R-plasmids of gram negative bacteria isolated from poultry in Karachi.
Pak J Pharm Sci Jan ;11(1):27-33.

R plasmids of Gram negative bacteria isolated from poultry in Karachi were studied for their properties of colicin production and resistance. Of 39 R plssmids studied, 23 resisted colicin where as only one R plasmid produced colicin.

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