A Carbenicillin R Factor from Pseudomonas aeruginosa

  • AJ van Rensburg
  • MJ de Klerk

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 v:Jrious strains of Pseudomonas, Proteus and Alcaligenes, and coexisted stably with both fi+ and fi- R factors. Electron microscopy showed the presence of circular DNA molecules with an average contour length of 19,3 ± 0,6 µm.

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

Author Biographies

AJ van Rensburg
Department of Microbiology, University of the Orange Free State, Bloemfontein, OFS
MJ de Klerk
Department of Microbiology, University of the Orange Free State, Bloemfontein, OFS
Published
2018-03-17
Section
Articles