Abstract
Induction of resistance to pathogen is associated with the colonization of root by Trichoderma spp. has been attributed as one of the major mechanisms contributing to pathogenic invasion. The present study sheds light on the defense network of brinjal plant bioprimed with Trichoderma spp. challenged with Sclerotinia sclerotiorum. Plants treated with dual inoculation of Trichoderma harzianum and Trichoderma asperellum triggered further synthesis of TPC under S. sclerotiorum challenge with maximum increment recorded at 72 hours. In consortium treated and pathogen challenged plants, a higher amount of shikimic acid was observed at 72 hours, whereas other phenolics showed little differences among the treatments. The consortium treatment showed significantly higher defense related enzymes (Phenylalanine Ammonia Lyase, Peroxidase and Polyphenol Oxidase) activity than other treatments. The study signifies how Trichoderma spp. reprograms the host's defense network to provide robust protection against S. sclerotiorum. In the present case, overall protection was provided to the brinjal plants against the attack of S. sclerotiorum.
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