Some chemical and structural features of the conidial wall of Trichoderma viride

Abstract

Cell wall of spores of Trichoderma viride contains polymers similar to those of mycelial cell wall, such as β-(1 → 3), β-(1 → 6)glucans and protein, but chitin, always present in the mycelium, cannot be found in spores. Melanin, which in other fungi appears associated with chitin, replaces this polymer in the spore wall of T. viride and is located in the outermost layer. Attempts to characterize the pigment of the spore wall indicate that it is a non-indolic melanin-like polyphenol.