Abstract
Using the International typing phage 80 as the transducing agent, it was confirmed that the chloramphenicol-resistance can be transduced from a highly chloramphenicol-resistant strain of Staphylococcus aureus to sensitive strains of Staphylococcus aureus as well as Staphylococcus epidermidis.
In the case of Staph. aureus, about 46% of the test strains were competent recipients of the CM-marker, and the incidence of transduction was higher in strains of phage group I than those in the other phage groups. Transduction frequencies varied from 10-7 to 10-8. In the case of Staph. epidermidis, abaut 35% of the 23 strains used were competent to serve as the recipient of CM-marker.
Joint transduction of the penicillinase production, mannitol fermentation and coagulase production was not observed.
