Induction of chitinase, -glucanase, and xylanase taken from Trichoderma sp. on different sources: A review

Biological control by antagonistic organisms is a potential nonchemical tool for crop protection against phytopathogenic fungi. Trichoderma spp. are the most commonly used biocontrol agent that are being used against many soil borne pathogens. The biocontrol mechanism of Trichoderma involves mycoparasitism, antibiosis and competition for key nutrients. Chitinase, xylanase and β-glucanase are the major cell wall-degrading enzymes (CWDEs) that are involved in the mycoparasitic action. CWDEs improve the biocontrol activity of these strains. Different carbon sources are supplemented in the growth medium for the induction of these CWDEs. Key words: Cell wall-degrading enzymes (CWDEs), mycoparasitic, phytopathogenic, Trichoderma.