Gliocladium catenulatum: hyperparasite of Sclerotinia sclerotiorum and Fusarium species

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Abstract
G. catenulatum parasitizes S. scelerotiorum and Fusarium spp. It kills the host by direct hyphal contact causing the affected cells to collapse or disintegrate. Pseudoappressoria are formed by the hyperparasite but hyphae derived from them do not penetrate the host cell walls. Vegetative hyphae of all species tested and macroconidia of Fusarium spp. are susceptible to this hyperparasite but chlamydospores of F. equiseti are resistant.