Trichoderma Spp. As A Bio Agent of Pathogens: How Much Do We Know?

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Girija Prasanna Giri, Sourav Kar, Jeeten Rout, Pankaj Sharma, Adesh Kumar, Ashok Kumar Koshariya

Abstract

Trichoderma species are mainly asexual fungi that are present altogether sorts of agriculture soils and also in decaying wood. The antagonistic activity of Trichoderma species showed that it's parasitic on much soil- borne and foliage pathogens the fungus is additionally a decomposer of cellulosic waste materials recent discoveries show that the fungi not only act as bio control agents, but also stimulate plant resistance, and plant growth and development leading to a rise in crop production. The bio control activity involving mycoparasitism, antibiotics and competition for nutrients, also induces defence responses or systemic resistance in plants. The studies carried out to date have reported that Trichoderma is capable of controlling insect pest directly through parasitism and the production of insecticidal secondary metabolites, antifeedant compounds and repellent metabolites. and indirectly through the activation of systemic plant defensive responses, the attraction of natural enemies or the parasitism of insect symbiotic microorganisms. Therefore, the use of Trichoderma in agriculture is not only effective against plant pathogens, but also against insect pests, representing a future alternative in the development of sustainable agriculture.

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