Cytochemical Aspects of Chitin Breakdown During the Parasitic Action of a<i>Trichoderma</i>sp. on<i>Fusarium oxysporum</i>f. sp.<i>radicis-lycopersici</i>

Abstract

A strain of Trichoderma, isolated from a sample of peat collected in New Brunswick, displays the ability to produce chitinases and inhibits growth of the pathogenic fungus, Fusarium oxysporum f. sp. radicis-lycopersici, in dual culture tests. Scanning electron microscope investigations of hyphal interactions show that growth inhibition of the host mycelium does not result from hyphal penetration by Trichoderma (...)