Molecules, Vol. 25, Pages 3108: Synthetic Mono-Rhamnolipids Display Direct Antifungal Effects and Trigger an Innate Immune Response in Tomato against Botrytis Cinerea
Molecules, Vol. 25, Pages 3108: Synthetic Mono-Rhamnolipids Display Direct Antifungal Effects and Trigger an Innate Immune Response in Tomato against Botrytis Cinerea
Molecules doi: 10.3390/molecules25143108
Authors:
Mathilde Robineau
Sarah Le Guenic
Lisa Sanchez
Ludovic Chaveriat
Vincent Lequart
Nicolas Joly
Maryline Calonne
Cédric Jacquard
Stéphane Declerck
Patrick Martin
Stephan Dorey
Essaid Ait Barka
Natural rhamnolipids are potential biocontrol agents for plant protection against bacterial and fungal diseases. In this work, we synthetized new synthetic mono-rhamnolipids (smRLs) consisting in a rhamnose connected to a simple acyl chain and differing by the nature of the link and the length of the lipid tail. We then investigated the effects of these ether, ester, carbamate or succinate smRL derivatives on Botrytis cinerea development, symptoms spreading on tomato leaves and immune responses in tomato plants. Our results demonstrate that synthetic smRLs are able to trigger early and late immunity-related plant defense responses in tomato and increase plant resistance against B. cinerea in controlled conditions. Structure-function analysis showed that chain length of the lipidic part and type of acyl chain were critical to smRLs immune activity and to the extent of symptoms caused by the fungus on tomato leaves.
Source: Molecules - Category: Chemistry Authors: Mathilde Robineau Sarah Le Guenic Lisa Sanchez Ludovic Chaveriat Vincent Lequart Nicolas Joly Maryline Calonne C édric Jacquard St éphane Declerck Patrick Martin Stephan Dorey Essaid Ait Barka Tags: Article Source Type: research