Synthetic Rhamnolipid Bolaforms trigger an innate immune response in Arabidopsis thaliana

W. Patricio Luzuriaga-Loaiza 1 Romain Schellenberger 1 Yannick de Gaetano 2, 1 Firmin Obounou Akong 3, 1 Sandra Villaume 4, 1 Jérôme Crouzet 4, 1 Arnaud Haudrechy 3, 1 Fabienne Baillieul 4, 1 Christophe Clément 4, 1 Laurence Lins 5, 1 Florent Allais 2 Marc Ongena 5, 1 Sandrine Bouquillon 3, 1 Magali Deleu 6, 1 Stephan Dorey 4, 1
1 SFR Condorcet
2 ABI - Agro-Biotechnologies Industrielles
3 ICMR - Institut de Chimie Moléculaire de Reims - UMR 7312
4 RIBP - Résistance Induite et Bioprotection des Plantes - EA 4707
5 Gembloux Agro-Bio Tech [Gembloux]
6 Université de Liège
Abstract : Stimulation of plant innate immunity by natural and synthetic elicitors is a promising alternative to conventional pesticides for a more sustainable agriculture. Sugar-based bolaamphiphiles are known for their biocompatibility, biodegradability and low toxicity. In this work, we show that Synthetic Rhamnolipid Bolaforms (SRBs) that have been synthesized by green chemistry trigger Arabidopsis innate immunity. Using structure-function analysis, we demonstrate that SRBs, depending on the acyl chain length, differentially activate early and late immunity-related plant defense responses and provide local increase in resistance to plant pathogenic bacteria. Our biophysical data suggest that SRBs can interact with plant biomimetic plasma membrane and open the possibility of a lipid driven process for plant-triggered immunity by SRBs.
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https://hal.univ-reims.fr/hal-01831164
Contributor : Stéphanie Castex <>
Submitted on : Thursday, July 5, 2018 - 4:32:18 PM
Last modification on : Wednesday, July 3, 2019 - 11:22:09 AM

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W. Patricio Luzuriaga-Loaiza, Romain Schellenberger, Yannick de Gaetano, Firmin Obounou Akong, Sandra Villaume, et al.. Synthetic Rhamnolipid Bolaforms trigger an innate immune response in Arabidopsis thaliana. Scientific Reports, Nature Publishing Group, 2018, 8 (1), ⟨10.1038/s41598-018-26838-y⟩. ⟨hal-01831164⟩

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