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Proteomic response of Moniliophthora perniciosa exposed to pathogenesis-related protein-10 from Theobroma cacao

Author(s): F.A.C. Silva1, C.P. Pirovani1, S. Menezes1, C. Pungartnik2, A.S. Santiago1, M.G.C. Costa1, F. Micheli3 and A.S. Gesteira4

TcPR-10, a member of the pathogenesis-related protein 10 family, was identified in EST library of interactions between Theobroma cacao and Moniliophthora perniciosa. TcPR-10 has been shown to have antifungal and ribonuclease activities in vitro. This study aimed to identify proteins that are differentially expressed in M. perniciosa in response to TcPR-10 through a proteomic analysis. The fungal hyphae were subjected to one of four treatments: control treatment or 30-, 60- or 120-min treatment with the TcPR-10 protein. Two-dimensional maps revealed 191 differentially expressed proteins, 55 of which were identified by mass spectrometry.