Main Article Content

A carbenicillin R factor from Pseudomonas aeruginosa


A.J. van Rensburg
M.J. de Kock

Abstract

Of 64 carbenicillin-resistant Pseudomonas aeruginosa strains 40 transferred this resistance to Escherichia coli. R factor RP-638 isolated from Ps. aeruginosa strain 638 conferred resistance to ampicillin, carbenicillin, kanamycin, neomycin and tetracycline. This R factor was transferred at frequencies 01 10-7 to 10-4 between various strains of Pseudomonas, Proteus and Alcaligenes, and coexisted stably with both ft+ and fi- R factors. Electron microscopy showed the presence of circular DNA molecules with an average contour length of 19,3 ±0,6µm.

S. Afr. Med. J., 48, 1187 (1974).

Journal Identifiers


eISSN: 2078-5135
print ISSN: 0256-9574