Hyphal interference by Trametes hispida

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Abstract
The antagonistic activity of Trametes hispida Bagl. in dual culture with Hirschioporus species and other non-basidiomycetous fungi is interpreted as hyphal interference. Hyphae of T. hispida grow into and over colonies of sensitive fungi. Contact with hyphae of T. hispida results in cessation of growth and rapid necrosis of affected cells.Ultrastructural studies of the affected hyphae of Hirschioporus pargamenus (Fr.) Bond. &Sing. showed an early formation of extraplasmalemmal wall deposits, disruption of membrane systems, coagulation of cytoplasm, localized dissolution of walls, and loss of cell contents without penetration by the antagonist.

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