Nonconjugative R plasmid-mediated antibiotic resistance in Escherichia coli isolated from animals in Peninsular Malaysia
Koh, C.L.; Kok, C.H.
Southeast Asian Journal of Tropical Medicine and Public Health 15(3): 313-316
1984
ISSN/ISBN: 0125-1562 PMID: 6395350 Document Number: 233429
Four of the five veterinary E. coli strains, which were unable to transfer their antibiotic resistance by conjugation, were found to harbour plasmids. Evidence from transformation, agarose gel electrophoresis and curing experiments showed that in strains KE-3, KE-4 and KE-14 a nonconjugative R plasmid carried the gene for resistance to tetracycline. The plasmids in KE-9 were cryptic.