GLUTAMATE RECEPTOR-LIKE genes mediate leaf-to-leaf wound signalling
Top Cited Papers
Open Access
- 21 August 2013
- journal article
- research article
- Published by Springer Science and Business Media LLC in Nature
- Vol. 500 (7463), 422-426
- https://doi.org/10.1038/nature12478
Abstract
Wounded leaves communicate their damage status to one another through a poorly understood process of long-distance signalling. This stimulates the distal production of jasmonates, potent regulators of defence responses. Using non-invasive electrodes we mapped surface potential changes in Arabidopsis thaliana after wounding leaf eight and found that membrane depolarizations correlated with jasmonate signalling domains in undamaged leaves. Furthermore, current injection elicited jasmonoyl-isoleucine accumulation, resulting in a transcriptome enriched in RNAs encoding key jasmonate signalling regulators. From among 34 screened membrane protein mutant lines, mutations in several clade 3 GLUTAMATE RECEPTOR-LIKE genes (GLRs 3.2, 3.3 and 3.6) attenuated wound-induced surface potential changes. Jasmonate-response gene expression in leaves distal to wounds was reduced in a glr3.3 glr3.6 double mutant. This work provides a genetic basis for investigating mechanisms of long-distance wound signalling in plants and indicates that plant genes related to those important for synaptic activity in animals function in organ-to-organ wound signalling.Keywords
This publication has 58 references indexed in Scilit:
- A special pair of phytohormones controls excitability, slow closure, and external stomach formation in the Venus flytrapProceedings of the National Academy of Sciences, 2011
- Perception of the Arabidopsis Danger Signal Peptide 1 Involves the Pattern Recognition Receptor AtPEPR1 and Its Close Homologue AtPEPR2Journal of Biological Chemistry, 2010
- Velocity Estimates for Signal Propagation Leading to Systemic Jasmonic Acid Accumulation in Wounded ArabidopsisJournal of Biological Chemistry, 2009
- The wound hormone jasmonatePhytochemistry, 2009
- System Potentials, a Novel Electrical Long-Distance Apoplastic Signal in Plants, Induced by WoundingPlant Physiology, 2009
- Spatial and Temporal Dynamics of Jasmonate Synthesis and Accumulation in Arabidopsis in Response to WoundingJournal of Biological Chemistry, 2008
- Glutamate Receptor Subtypes Evidenced by Differences in Desensitization and Dependence on theGLR3.3andGLR3.4GenesPlant Physiology, 2007
- A Downstream Mediator in the Growth Repression Limb of the Jasmonate PathwayPlant Cell, 2007
- Cold Transiently Activates Calcium-Permeable Channels in Arabidopsis Mesophyll CellsPlant Physiology, 2006
- Calcium Entry Mediated by GLR3.3, an Arabidopsis Glutamate Receptor with a Broad Agonist ProfilePlant Physiology, 2006