FIGURE 1.

Scheme of experimental setup and culture morphology. The top panel shows the experimental scheme where T indicates Trichoderma species, Lb indicates Laccaria bicolor. Three lower panels display the actual morphology of the individual fungus and co-cultures, where Thz, Trichoderma harzianum; Thm, Trichoderma hamatum; Tv, Trichoderma velutinum; Lb, Laccaria bicolor. The degree of contact in co-cultivation conditions in bi-partial Petri dishes is indicated as NC, no contact; AC, airborne contact and in direct confrontation set ups as MC, media contact; DC, direct contact. END indicates the final status of Trichoderma–L. bicolor co-cultures in direct physical contact (9 days after inoculation with Trichoderma species).