Abstract
The genetic factor responsible for the production of pyocin R1 was found to be transferable from the original strain P15 to PAO sublines by F116 transduction. Similar to pyocin R2 and R3 factors, R1 factor was cotransduced with trp-1 marker. The behavior of the R1 factor was studied in PAO comparing with other pyocin factors. The results suggest that all these pyocin factors occupy a similar position close to trp-1 in the chromosome of PAO strains.
