Figure 1.

Lysis zones of bacteriophage CP_F1 on bacterial lawns of C. jejuni PT14. Opaque lysis areas were observed upon infection of the wild type strain caused by regrowth of a Campylobacter sub-population less susceptible to phage infection. Disruption of the flaB gene resulted in clear lysis. Complementation of the flaB mutant partially restored opaque lysis. Reduced plating efficiency and opaque plaques were observed in flaA and flaAB mutants. No plaque formation occurred for the kpsM mutant.