Deciphering molecular events behind Systemin-induced resistance to Botrytis cinerea in tomato plants
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Other documents of the author: Pastor Fernández, Julia; Sanmartín, Neus; Manresa Grao, María; Cassan, Cédric; Pétriacq, Pierre; Gibon, Yves; Gamir, Jordi; Romero Rodríguez, Beatriz; Castillo, Araceli G.; Cerezo García, Miguel; Flors, Victor; Sánchez-Bel, Paloma
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Title
Deciphering molecular events behind Systemin-induced resistance to Botrytis cinerea in tomato plantsAuthor (s)
Date
2024-04-06Publisher
Oxford University Press; Society for Experimental BiologyISSN
0022-0957; 1460-2431Bibliographic citation
Julia Pastor-Fernández, Neus Sanmartín, Maria Manresa-Grao, Cédric Cassan, Pierre Pétriacq, Yves Gibon, Jordi Gamir, Beatriz Romero-Rodriguez, Araceli G Castillo, Miguel Cerezo, Victor Flors, Paloma Sánchez-Bel, Deciphering molecular events behind Systemin-induced resistance to Botrytis cinerea in tomato plants, Journal of Experimental Botany, Volume 75, Issue 13, 10 July 2024, Pages 4111–4127, https://doi.org/10.1093/jxb/erae146Type
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info:eu-repo/semantics/acceptedVersionSubject
Abstract
Plant defence peptides are paramount endogenous danger signals secreted after a challenge, intensifying the plant immune response. The peptidic hormone Systemin (Sys) was shown to participate in resistance in several ... [+]
Plant defence peptides are paramount endogenous danger signals secreted after a challenge, intensifying the plant immune response. The peptidic hormone Systemin (Sys) was shown to participate in resistance in several plant pathosystems, although the mechanisms behind Sys-induced resistance when exogenously applied remain elusive. We performed proteomic, metabolomic, and enzymatic studies to decipher the Sys-induced changes in tomato plants in either the absence or the presence of Botrytis cinerea infection. Sys treatments triggered direct proteomic rearrangement mostly involved in carbon metabolism and photosynthesis. However, the final induction of defence proteins required concurrent challenge, triggering priming of pathogen-targeted proteins. Conversely, at the metabolomic level, Sys-treated plants showed an alternative behaviour following a general priming profile. Of the primed metabolites, the flavonoids rutin and isorhamnetin and two alkaloids correlated with the proteins 4-coumarate-CoA-ligase and chalcone-flavanone-isomerase triggered by Sys treatment. In addition, proteomic and enzymatic analyses revealed that Sys conditioned the primary metabolism towards the production of available sugars that could be fuelling the priming of callose deposition in Sys-treated plants; furthermore, PR1 appeared as a key element in Sys-induced resistance. Collectively, the direct induction of proteins and priming of specific secondary metabolites in Sys-treated plants indicated that post-translational protein regulation is an additional component of priming against necrotrophic fungi. [-]
Is part of
Journal of Experimental Botany, Volume 75, Issue 13, 10 July 2024, Pages 4111–4127, https://doi.org/10.1093/jxb/erae146Funder Name
MCIN/AEI/10.13039/501100011033 | ERDF A way of making Europe | Universitat Jaume I | Generalitat Valenciana | Diputación de Castellón | Horizon 2020 European Plant Phenotyping Network Transnational Access Program
Project code
PID2021-124813OB-C32 | UJI-B2019-26 | UJI-B2022-51 (UJI) | GV/2018/115 | 22I186.01/1 | PREDOC/2018/20 | EPPN2020 grant agreement no. 731013
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