This title appears in the Scientific Report :
2022
Please use the identifier:
http://hdl.handle.net/2128/30933 in citations.
Please use the identifier: http://dx.doi.org/10.1111/pce.14239 in citations.
Modulation of Plant Plasma Membrane Structure by Exogenous Fatty Acid Hydroperoxide is a Potential Perception Mechanism for their Eliciting Activity
Modulation of Plant Plasma Membrane Structure by Exogenous Fatty Acid Hydroperoxide is a Potential Perception Mechanism for their Eliciting Activity
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 foc...
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Personal Name(s): | Estelle, Deboever |
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Géraldine, Van Aubel / Valeria, Rondelli / Koutsioumpas, Alexandros / Marion, Mathelie-Guinlet / Dufrene Yves, F. / Marc, Ongena / Laurence, Lins / Pierre, Van Cutsem / Marie-Laure, Fauconnier / Magali, Deleu (Corresponding author) | |
Contributing Institute: |
Heinz Maier-Leibnitz Zentrum; MLZ JCNS-4; JCNS-4 Streumethoden; JCNS-2 JCNS-FRM-II; JCNS-FRM-II |
Published in: | Plant, cell & environment, 45 (2022) 4, S. 1082-1095 |
Imprint: |
Oxford [u.a.]
Wiley-Blackwell
2022
|
DOI: |
10.1111/pce.14239 |
PubMed ID: |
34859447 |
Document Type: |
Journal Article |
Research Program: |
Materials – Quantum, Complex and Functional Materials Jülich Centre for Neutron Research (JCNS) (FZJ) |
Subject (ZB): | |
Link: |
Get full text Published on 2021-12-03. Available in OpenAccess from 2022-12-03. |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1111/pce.14239 in citations.
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. |