Figure 1.

(A) After seven days of growth on a medium with dextrin as sole carbon source, wild-type, PaPls1 and PaNox2 mutants differentiate fructifications (small black dots) mostly in a region surrounding inoculum's explants located at the center of the plates. (B) After seven days of growth on 3 cm × 3 cm filter papers as sole carbon source, wild-type differentiates about fifty times more fructifications than PaPls1 and PaNox2 mutants on the filter paper. (C) After seven days of growth on a medium overlaid with cellophane, wild-type has reached the underneath medium (arrow) through three layers of cellophane, whereas both PaPls1 and PaNox2 mutants have not breached a single layer of cellophane.