FIG. 5.

Confrontation assays with T. virens and host plant pathogenic fungi. The host was inoculated at the right-hand side of the plate.(A) Colony interaction between R. solani and T. virens 5 days after inoculation. Control, host only. (B) Wild type and mutants on R. solani hyphae (after 5 days of inoculation). Note the lysis of host hyphae from confrontation plates, indicated by the absence of stain. Control, R. solani hyphae only. (C) Growth of T. virens in confrontation plates with S. rolfsii.