Modulation of plant plasma membrane structure by exogenous fatty acid hydroperoxide is a potential perception mechanism for their eliciting activity
| Autor: | Deleu Magali, Rondelli Valeria, Koutsioumpas Alexandros, F Dufrene Yves, Ongena Marc, Fauconnier Marie-Laure, Van Cutsem Pierre, Deboever Estelle, Mathelie-Guinlet Marion, Lins Laurence, Van Aubel Géraldine |
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| Přispěvatelé: | UCL - SST/LIBST - Louvain Institute of Biomolecular Science and Technology |
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
Lipid Peroxides
Physiology fatty acid hydroperoxide plant defence Membrane lipids Plant Immunity Plant Science oxylipin plant plasma membrane medicine Arabidopsis thaliana oxidative burst chemistry.chemical_classification elicitor biology Chemistry fungi Cell Membrane Fatty acid Plant physiology food and beverages Oxylipin Plants biology.organism_classification Elicitor ddc:580 Biochemistry Mechanism of action Perception medicine.symptom molecular mechanism Reactive Oxygen Species |
| Zdroj: | Plant, cell & environment, Vol. 45, no.4, p. 1082-1095 (2022) Plant, cell & environment 45(4), 1082-1095 (2022). doi:10.1111/pce.14239 |
| DOI: | 10.1111/pce.14239 |
| Popis: | Oxylipins are lipid-derived molecules that are ubiquitous in eukaryotes and whose functions in plant physiology have been widely reported. They appear to play a major role in plant immunity by orchestrating reactive oxygen species (ROS) and hormone-dependent signalling pathways. The present work focuses on the specific case of fatty acid hydroperoxides (HPOs). Although some studies report their potential use as exogenous biocontrol agents for plant protection, evaluation of their efficiency in planta is lacking and no information is available about their mechanism of action. In this work, the potential of 13(S)-hydroperoxy-(9Z,11E)-octadecadienoic acid (13-HPOD) and 13(S)-hydroperoxy-(9Z,11E,15Z)-octadecatrienoic acid (13-HPOT), as plant defence elicitors and the underlying mechanism of action are investigated. Arabidopsis thaliana leaf resistance to Botrytis cinerea was observed after root application with HPOs. They also activate early immunity-related defence responses, like ROS. As previous studies have demonstrated their ability to interact with plant plasma membranes (PPM), we have further investigated the effects of HPOs on biomimetic PPM structure using complementary biophysics tools. Results show that HPO insertion into PPM impacts its global structure without solubilizing it. Relationship between biological assays and biophysical analysis suggests that lipid amphiphilic elicitors that directly act on membrane lipids might trigger early plant defence events. This article is protected by copyright. All rights reserved. |
| Databáze: | OpenAIRE |
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