RT Journal Article T1 Plant defence induction by Meyerozyma guilliermondii in Vitis vinifera L. A1 Alonso de Robador, José María A1 Ortega Pérez, Nora A1 Sánchez Ballesta, María Teresa A1 Tello Mariscal, M. Luisa A1 Pintos López, Beatriz A1 Gómez Garay, María Aranzazu AB This article emphasizes the crucial importance of yeast Meyerozyma guilliermondii (Patent CECT13190) as a biological control agent (BCA) in eliciting defensive responses in vine plants, and is supported by comprehensive physiological, proteomic, and transcriptomic analyses. The results demonstrate that the BCA M. guilliermondii can induce enhanced defensive responses, as reflected in the regulation of key proteins. Notably, the upregulated expression of calmodulin and pathogenesis-related protein 10 (PR-10) are indicative of a complex interplay between calcium signalling, salicylic acid accumulation, and the elicitation of plant defence responses against pathogens. Furthermore, changes in microtubule dynamics and proteins related to protein synthesis and folding are observed, confirming the elicitation of defence responses. The correspondence between proteomic and transcriptomic analyses for genes codifying pathogenesis-related proteins, such as Vcgns1, VviTL1, and Vcchit1b, reinforces the empirical robustness of our findings. Collectively, our research explores the modulation of plant defences by the BCA, opening promising avenues for innovative agricultural strategies that enhance crop resilience and productivity. PB MDPI YR 2023 FD 2023-11-08 LK https://hdl.handle.net/20.500.14352/104018 UL https://hdl.handle.net/20.500.14352/104018 LA eng NO Alonso de Robador, J.M.; Ortega Pérez, N.; Sanchez-Ballesta, M.T.; Tello Mariscal, M.L.; Pintos López, B.; Gómez-Garay, A. Plant Defence Induction by Meyerozyma guilliermondii in Vitis vinifera L. Agronomy 2023, 13, 2780. https:// doi.org/10.3390/agronomy13112780 NO 2023 Descuento MDPI NO Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (España) DS Docta Complutense RD 7 oct 2024