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Study of Trichoderma harzianum genes associated with mycoparasitism and its role in biocontrol of Sclerotinia sclerotiorum

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Eriston Vieira Gomes
Total Authors: 1
Document type: Doctoral Thesis
Press: Ribeirão Preto.
Institution: Universidade de São Paulo (USP). Faculdade de Medicina de Ribeirão Preto (PCARP/BC)
Defense date:
Examining board members:
Roberto do Nascimento Silva; André Ricardo de Lima Damasio; Maria Helena de Souza Goldman; Joao Atilio Jorge; Maria de Lourdes Teixeira de Moraes Polizeli
Advisor: Roberto do Nascimento Silva

Fungal species Trichoderma harzianum, are studied as soilborne plant pathogens biological control agent and its strategy is a complex process, which can occur by different mechanisms or a combination thereof, including mycoparasitism. In this work, the consequences of epl-1 gene deletion, which encoding for Epl-1 protein, described as plants resistance elicitor, were analyzed on: modulation of gene expression involved in T. harzianum mycoparasitism process against phytopathogenic fungus Sclerotinia sclerotiorum; mycoparasitism establishment process and T. harzianum interaction with bean plants. The results showed that epl-1 encoding gene deletion altered the expression modulation of all analyzed genes related to mycoparasitism process. Furthermore, Epl-1 presented a role in modulating expression of these genes in the process of self and host cell wall recognition; the interaction with host plant pathogens in formation of mycoparasitism structures as well as local and systemic resistance in beans plants (AU)

FAPESP's process: 12/16895-4 - Study of genes associated with Trichoderma harzianum mycoparasitism and its role in the biocontrol of Sclerotinia sclerotiorum
Grantee:Eriston Vieira Gomes
Support Opportunities: Scholarships in Brazil - Doctorate