Plasmid profiles of six species of Campylobacter from human beings, swine, and sheep
Boosinger, T.R.; Blevins, W.T.; Heron, J.V.; Sunter, J.L.
American Journal of Veterinary Research 51(5): 718-722
1990
ISSN/ISBN: 0002-9645 PMID: 2337268 Document Number: 357160
Twenty-four isolates representing 6 species of Campylobacter were screened for plasmids. A large plasmid with an approximate molecular weight or 38 Mdal was detected in 5 C. jejuni isolates originally recovered from diarrheic human beings, in one isolate of C. coli recovered from diarrheic pigs, and in 1 isolate of C. sputorum ssp mucosalis and 2 isolates of C. hyointestinalis recovered from pigs with proliferative enteritis. One isolate of C. coli and 1 isolate of C. hyointestinalis contained an additional smaller plasmid with an approximate molecular weight of 1.6 Mdal; this plasmid was partially mapped by restriction endonuclease digestion. Fifteen Campylobacter isolates contained no detectable plasmids: 2 C coli, 2 C sputorum ssp mucosalis, 2 C fecalis, 1 C fetus ssp fetus, and 8 C hyointestinalis isolates. In summary, 37.5% of the Campylobacter isolates contained a 38-Mdal plasmid, with 8% having both 38 Mdal and 1.6-Mdal plasmids; 62.5% contained no detectable plasmids.