The cerato-platanin protein Epl-1 from Trichoderma harzianum is involved in mycoparasitism, plant resistance induction and self cell wall protection
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2015
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Trichoderma harzianum species are well known as biocontrol agents against important fungal
phytopathogens. Mycoparasitism is one of the strategies used by this fungus in the biocontrol
process. In this work, we analyzed the effect of Epl-1 protein, previously described as plant resistance
elicitor, in expression modulation of T. harzianum genes involved in mycoparasitism process against
phytopathogenic fungi; self cell wall protection and recognition; host hyphae coiling and triggering
expression of defense-related genes in beans plants. The results indicated that the absence of Epl-1
protein affects the expression of all mycoparasitism genes analyzed in direct confrontation assays
against phytopathogen Sclerotinia sclerotiorum as well as T. harzianum itself; the host mycoparasitic
coiling process and expression modulation of plant defense genes showing different pattern compared
with wild type strain. These data indicated the involvement T. harzianum Epl-1 in self and host
interaction and also recognition of T. harzianum as a symbiotic fungus by the bean plants.
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GOMES, E. V.; COSTA, Mariana do Nascimento; PAULA, Renato Graciano de; AZEVEDO, Rafael Ricci de; SILVA, Francilene Lopes da; NORONHA, Eliane F.; ULHOA, Cirano José; Valdirene Neves; CARDOZA, Rosa Elena; GUTIERREZ, Santiago; SILVA, Roberto Nascimento. The cerato-platanin protein Epl-1 from Trichoderma harzianum is involved in mycoparasitism, plant resistance induction and self cell wall protection. Scientific Reports, Shanghai, v. 5, n. 17998, p. 1-13, 2015.