Abstract:
A total of 27 endophytic fungi were isolated from leaves of Thespesia populnea. The isolated fungi included 3 ascomycetes, 3 coelomycetes, 3 hyphomycetes and 18 mycelia sterilia. Screening for endophytic fungi with antifungal activity against Colletotrichum gloeosporioides was conducted using dual culture technique on 3 culture media; potato dextrose agar which one fold composition reducing (0.5x PDA), Sabouraud dextrose agar (SDA) and low nutrient agar (LNA). Five fungal endophytes; Th21, Th31, Th51, Th131 and Th241 inhibited C. gloeosporioides. The antibiosis level against C. gloeosporioideson SDA and 0.5x PDA were not different while the antibiosis on LNA medium showed weak activity. Only the ethyl acetate extracts from broth culture of Th21 could inhibit C. gloeosporioides by disc diffusion assay.