FIG. 9.

Phenotypes of mutants 3610 ymcAΔ and 3610 ymcAΔ ylbFΔ. Pellicle and colony development were assayed as described in the legend to Fig. 1. The parental strain images (first column) are the same as in Fig. 2, and the 3610 ylbFΔ images (third column) are the same as in Fig. 8.