| Title: | Systemic acquired resistance networks amplify airborne defense cues |
| Author(s): | Wenig M; Ghirardo A; Sales JH; Pabst ES; Breitenbach HH; Antritter F; Weber B; Lange B; Lenk M; Cameron RK; Schnitzler JP; Vlot AC; |
| Address: | "Helmholtz Zentrum Muenchen, Department of Environmental Science, Institute of Biochemical Plant Pathology, Ingolstaedter Landstr. 1, 85764, Neuherberg, Germany. Helmholtz Zentrum Muenchen, Department of Environmental Science, Institute of Biochemical Plant Pathology, Research Unit Environmental Simulation, Ingolstaedter Landstr. 1, 85764, Neuherberg, Germany. McMaster University, Faculty of Science, 1280 Main St. West, Hamilton, ON, L8S 4K1, Canada. Helmholtz Zentrum Muenchen, Department of Environmental Science, Institute of Biochemical Plant Pathology, Ingolstaedter Landstr. 1, 85764, Neuherberg, Germany. corina.vlot@helmholtz-muenchen.de" |
| DOI: | 10.1038/s41467-019-11798-2 |
| ISSN/ISBN: | 2041-1723 (Electronic) 2041-1723 (Linking) |
| Abstract: | "Salicylic acid (SA)-mediated innate immune responses are activated in plants perceiving volatile monoterpenes. Here, we show that monoterpene-associated responses are propagated in feed-forward loops involving the systemic acquired resistance (SAR) signaling components pipecolic acid, glycerol-3-phosphate, and LEGUME LECTIN-LIKE PROTEIN1 (LLP1). In this cascade, LLP1 forms a key regulatory unit in both within-plant and between-plant propagation of immunity. The data integrate molecular components of SAR into systemic signaling networks that are separate from conventional, SA-associated innate immune mechanisms. These networks are central to plant-to-plant propagation of immunity, potentially raising SAR to the population level. In this process, monoterpenes act as microbe-inducible plant volatiles, which as part of plant-derived volatile blends have the potential to promote the generation of a wave of innate immune signaling within canopies or plant stands. Hence, plant-to-plant propagation of SAR holds significant potential to fortify future durable crop protection strategies following a single volatile trigger" |
| Keywords: | "Arabidopsis/*immunology/metabolism Arabidopsis Proteins/genetics/*metabolism Disease Resistance/*immunology Feedback, Physiological Glycerophosphates/immunology/metabolism Host-Pathogen Interactions/immunology Immunity, Innate Monoterpenes/immunology/meta;" |
| Notes: | "MedlineWenig, Marion Ghirardo, Andrea Sales, Jennifer H Pabst, Elisabeth S Breitenbach, Heiko H Antritter, Felix Weber, Baris Lange, Birgit Lenk, Miriam Cameron, Robin K Schnitzler, Joerg-Peter Vlot, A Corina eng Research Support, Non-U.S. Gov't England 2019/08/25 Nat Commun. 2019 Aug 23; 10(1):3813. doi: 10.1038/s41467-019-11798-2" |
