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, Valentina Bigini Department of Agriculture and Forest Sciences, University of Tuscia , Via S. Camillo de Lellis, 01100 Viterbo , Italy Search for other works by this author on: Oxford Academic Fabiano Sillo National Research Council, Institute for Sustainable Plant Protection , Strada delle Cacce 73, 10135, Torino , Italy Search for other works by this author on: Oxford Academic Sarah Giulietti Department of Agriculture and Forest Sciences, University of Tuscia , Via S. Camillo de Lellis, 01100 Viterbo , Italy Department of Biology and biotechnologies ‘Charles Darwin’, Sapienza University of Rome , Ple Aldo Moro 5, 00185 Rome , Italy Search for other works by this author on: Oxford Academic Daniela Pontiggia Department of Biology and biotechnologies ‘Charles Darwin’, Sapienza University of Rome , Ple Aldo Moro 5, 00185 Rome , Italy Research Center for Applied Sciences to the safeguard of Environment and Cultural Heritage (CIABC), Sapienza University of Rome , Ple Aldo Moro, 5 00185 Rome , Italy Search for other works by this author on: Oxford Academic Luca Giovannini National Research Council, Institute for Sustainable Plant Protection , Strada delle Cacce 73, 10135, Torino , Italy Search for other works by this author on: Oxford Academic Raffaella Balestrini National Research Council, Institute for Sustainable Plant Protection , Strada delle Cacce 73, 10135, Torino , Italy Correspondence: raffaellamaria.balestrini@cnr.it Search for other works by this author on: Oxford Academic Daniel V Savatin Department of Agriculture and Forest Sciences, University of Tuscia , Via S. Camillo de Lellis, 01100 Viterbo , Italy Correspondence: daniel.savatin@unitus.it Search for other works by this author on: Oxford Academic
https://orcid.org/0000-0001-9415-3582 Journal of Experimental Botany, Volume 75, Issue 10, 20 May 2024, Pages 3070–3091, https://doi.org/10.1093/jxb/erae050
Published:
09 February 2024
Article history
Received:
14 November 2023
Editorial decision:
05 February 2024
Accepted:
07 February 2024
Published:
09 February 2024
Corrected and typeset:
06 March 2024
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Valentina Bigini, Fabiano Sillo, Sarah Giulietti, Daniela Pontiggia, Luca Giovannini, Raffaella Balestrini, Daniel V Savatin, Oligogalacturonide application increases resistance to Fusarium head blight in durum wheat, Journal of Experimental Botany, Volume 75, Issue 10, 20 May 2024, Pages 3070–3091, https://doi.org/10.1093/jxb/erae050
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Abstract
Fusariosis causes substantial yield losses in the wheat crop worldwide and compromises food safety because of the presence of toxins associated with the fungal disease. Among the current approaches to crop protection, the use of elicitors able to activate natural defense mechanisms in plants is a strategy gaining increasing attention. Several studies indicate that applications of plant cell-wall-derived elicitors, such as oligogalacturonides (OGs) derived from partial degradation of pectin, induce local and systemic resistance against plant pathogens. The aim of this study was to establish the efficacy of OGs in protecting durum wheat (Triticum turgidum subsp. durum), which is characterized by an extreme susceptibility to Fusarium graminearum. To evaluate the functionality of OGs, spikes and seedlings of cv. Svevo were inoculated with OGs, F. graminearum spores, and a co-treatment of both. Results demonstrated that OGs are active elicitors of wheat defenses, triggering typical immune marker genes and determining regulation of fungal genes. Moreover, bioassays on spikes and transcriptomic analyses on seedlings showed that OGs can regulate relevant physiological processes in Svevo with dose-dependent specificity. Thus, the OG sensing system plays an important role in fine tuning immune signaling pathways in durum wheat.
Cell wall, durum wheat, Fusarium graminearum, immune signaling, oligogalacturonides, transcriptomics
© The Author(s) 2024. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For commercial re-use, please contact reprints@oup.com for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site—for further information please contact journals.permissions@oup.com.
This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model (https://academic.oup.com/pages/standard-publication-reuse-rights)
Issue Section:
Research Papers > Plant—Environment Interactions
Editor: Daolong Dou Daolong Dou Editor Nanjing Agricultural University , China Search for other works by this author on: Oxford Academic
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