Fig. 2.

Proficiency of the difA suppressor strain (YZ101) in S motility, development and EPS production. Cell suspensions were spotted onto CYE plates with 0.4 % agar (upper panels), standard CF plates (middle panels) and standard CYE plates with Calcofluor white (50 μg ml⁻¹) (lower panels) to examine S motility, development and EPS, respectively. Photographs were taken after incubation at 32 °C for 5 days. Strains: DK1622 (wild-type); YZ601 (ΔdifA); YZ101 (ΔdifA cheW7-1).