There are four main mechanisms for Trichoderma to control plant diseases, including competition, antibiotics, hyperparasitism and induced disease resistance.
Competition mainly refers to the competition between Trichoderma and pathogens for nutrients and growth space.
For example, Trichoderma competes with pathogens for iron ions by producing siderophores, and occupies the rhizosphere space of crops in advance by growing rapidly in the rhizosphere soil of crops.
Antibiotics mainly refer to the inhibition of pathogens by Trichoderma by producing a series of secondary metabolites or antimicrobial proteins with antibacterial or bactericidal effects, such as koninginins, trichodermin, gliotoxin, viridin, antibiotic peptides, 6-pentyl-a-pyrone (6-PP), siderophore, etc.
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