FIGURE 2.

Effect of pH on antifungal activity of harmol. P. digitatum and B. cinerea conidia were treated for 24 h with 1 mM harmol at the indicated pH. Controls with or without DMSO were included. (A) After treatments, colony formation was assessed using PDA plates incubated for 48 h. Photographs are representative of three independent experiments. (B) Viability of conidia was determined by counting CFU mL^-1 at the indicated times during the treatments with harmol. Three independent experiments were performed.