[en] Bacteria-derived lipopeptides are immunogenic triggers of host defences in metazoans and plants. Root-associated rhizobacteria produce cyclic lipopeptides that activate induced systemic resistance against microbial infection in various plant species. Whether and how these molecules are perceived at the plant cell surface remains elusive. Here we reveal that immune activation in Arabidopsis thaliana by the lipopeptide elicitor surfactin is mediated via a specific interaction with membrane sphingolipids. It relies on host membrane remodelling and subsequent activation of mechanosensitive ion channels. This mechanism leads to host defence potentiation and resistance to the necrotrophic fungus Botrytis cinerea and appears distinct from pattern-triggered immunity induced by classical host pattern recognition receptors. These results reveal a previously uncharacterized mechanism through which lipopeptides derived from non-pathogenic bacteria activate plant immune responses.
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Gilliard, Guillaume ✱; Université de Liège - ULiège > Département GxABT > Chemistry for Sustainable Food and Environmental Systems (CSFES) ; Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, Segrate, Italy ; Unité de Génie Enzymatique et Cellulaire, University of Picardie Jules Verne, Amiens, France
Prsic, Jelena ✱; Université de Liège - ULiège > TERRA Research Centre
Crowet, Jean-Marc ; Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Chemistry for Sustainable Food and Environmental Systems (CSFES) ; MAgICS, MEDyC, CNRS UMR 7369 UFR Sciences Exactes et Naturelles, University of Reims Champagne-Ardenne, Reims, France
Chemotti, Catherine ; Université de Liège - ULiège > Département GxABT > Chemistry for Sustainable Food and Environmental Systems (CSFES)
Ahmed, Jahed; Laboratoire de Biogenèse Membranaire, University of Bordeaux, Villenave d'Ornon, France
Lorent, Joseph ; Cellular and Molecular Pharmacology, Translational Research from Experimental and Clinical Pharmacology to Treatment Optimization, Louvain Drug Research Institute, UCLouvain, Brussels, Belgium
Jolivet, Marie-Dominique; Plant Cell Biology, TUM School of Life Sciences, Technical University of Munich, Freising, Germany
Egli, Sabrina ; Institute of Cell and Interaction Biology, CEPLAS Cluster of Excellence on Plant Sciences, Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany
Egée, Stéphane ; UMR8227 LBI2M Sorbonne Université-CNRS, Station Biologique de Roscoff, Roscoff, France
Bouyer, Guillaume ; UMR8227 LBI2M Sorbonne Université-CNRS, Station Biologique de Roscoff, Roscoff, France
Race, Gaëlle ; Université de Liège - ULiège > Département GxABT > Chemistry for Sustainable Food and Environmental Systems (CSFES)
van Buren, Lennard ; Division of Plant Biotechnics, Department of Biosystems, KU Leuven and KU Leuven Plant Institute, Heverlee, Belgium
Van Den Berghe, Anke ; Division of Plant Biotechnics, Department of Biosystems, KU Leuven and KU Leuven Plant Institute, Heverlee, Belgium
Argüelles-Arias, Anthony; Microbial Processes and Interactions laboratory, TERRA Research Centre, Gembloux Agro-Bio Tech, University of Liège, Gembloux, Belgium
Mathelié-Guinlet, Marion ; Institute of Biomolecular Science and Technology, Catholic University of Louvain, Louvain-la-Neuve, Belgium ; University Bordeaux, CNRS, Bordeaux INP, CBMN, Pessac, France
Ibrahim, Heba ; Division of Plant Biotechnics, Department of Biosystems, KU Leuven and KU Leuven Plant Institute, Heverlee, Belgium ; Institute of Bio- and Geosciences IBG-2, Forschungszentrum Jülich, Jülich, Germany
Genva, Manon ; Université de Liège - ULiège > Département GxABT > Chemistry for Sustainable Food and Environmental Systems (CSFES)
Fouillen, Laetitia ; Laboratoire de Biogenèse Membranaire, University of Bordeaux, Villenave d'Ornon, France
Mirande-Bret, Cécile; Laboratoire de Biogenèse Membranaire, University of Bordeaux, Villenave d'Ornon, France
Razin, Oihana; Laboratoire de Biogenèse Membranaire, University of Bordeaux, Villenave d'Ornon, France
Vue, Brian; Laboratoire de Biogenèse Membranaire, University of Bordeaux, Villenave d'Ornon, France
Župunski, Milan ; Institute of Cell and Interaction Biology, CEPLAS Cluster of Excellence on Plant Sciences, Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany
Luzuriaga-Loaiza, W Patricio; Microbial Processes and Interactions laboratory, TERRA Research Centre, Gembloux Agro-Bio Tech, University of Liège, Gembloux, Belgium
Deboever, Estelle ; Université de Liège - ULiège > Département GxABT > Chemistry for Sustainable Food and Environmental Systems (CSFES) ; Eppendorf Application Technologies, Namur, Belgium
Nasir, Mehmet Nail ; Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Chimie générale et organique ; Astel Medica, Soheit-Tinlot, Belgium
Lins, Laurence ; Université de Liège - ULiège > Département GxABT ; Bio-Life, Isnes, Belgium
Van Der Smissen, Patrick; CELL Unit, De Duve Institute, UCLouvain, Brussels, Belgium
Boubsi, Farah ; Université de Liège - ULiège > TERRA Research Centre
Eschrig, Sabine; School of Life Sciences Weihenstephan, Technical University of Munich, Freising, Germany
Germain, Véronique; Laboratoire de Biogenèse Membranaire, University of Bordeaux, Villenave d'Ornon, France
Höfte, Monica ; Laboratory of Phytopathology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
Zipfel, Cyril ; Department of Plant and Microbial Biology, Zurich-Basel Plant Science Center, University of Zurich, Zurich, Switzerland ; Sainsbury Laboratory, University of East Anglia, Norwich, UK
Dufrêne, Yves F ; Division of Plant Biotechnics, Department of Biosystems, KU Leuven and KU Leuven Plant Institute, Heverlee, Belgium
Tyteca, Donatienne; CELL Unit, De Duve Institute, UCLouvain, Brussels, Belgium
Koutsioubas, Alexandros ; Jülich Centre for Neutron Science at Heinz Maier-Leibnitz Zentrum, Forschungszentrum Jülich GmbH, Garching, Germany
Brocca, Paola ; Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, Segrate, Italy
Grossmann, Guido ; Institute of Cell and Interaction Biology, CEPLAS Cluster of Excellence on Plant Sciences, Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany
Ranf, Stefanie; Department of Biology, Faculty of Science and Medicine, University of Fribourg, Fribourg, Switzerland
Dorey, Stephan ; RIBP, UMR INRAE 1488, EXEBIO Institute, University of Reims Champagne-Ardenne, Reims, France
De Coninck, Barbara; Division of Plant Biotechnics, Department of Biosystems, KU Leuven and KU Leuven Plant Institute, Heverlee, Belgium
Nürnberger, Thorsten; Centre of Plant Molecular Biology, Eberhard-Karls-University Tübingen, Tübingen, Germany
Mongrand, Sébastien ; Laboratoire de Biogenèse Membranaire, University of Bordeaux, Villenave d'Ornon, France
Gronnier, Julien ; Plant Cell Biology, TUM School of Life Sciences, Technical University of Munich, Freising, Germany
Rondelli, Valeria ; Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, Segrate, Italy
Deleu, Magali ✱; Université de Liège - ULiège > Département GxABT > Chemistry for Sustainable Food and Environmental Systems (CSFES)
Ongena, Marc ✱; Université de Liège - ULiège > Département GxABT
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