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Reference Detail
| Reference | ||
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| Author | Ye M., Glauser G., Lou Y., Erb M., Hu L. | |
| Title | Molecular Dissection of Early Defense Signaling Underlying Volatile-Mediated Defense Regulation and Herbivore Resistance in Rice. | |
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Abstract: Herbivore-induced plant volatiles prime plant defenses and resistance, but how they are integrated into early defense signaling and whether a causal relationship exists between volatile defense priming and herbivore resistance is unclear. Here, we investigated the impact of indole, a common herbivore-induced plant volatile and modulator of many physiological processes in plants, bacteria, and animals, on early defense signaling and herbivore resistance in rice (<i>Oryza sativa</i>). Rice plants infested by fall armyworm (<i>Spodoptera frugiperda</i>) caterpillars release indole at a rate of up to 25 ng*h-1 Exposure to equal doses of exogenous indole enhances rice resistance to <i>S. frugiperda</i> Screening of early signaling components revealed that indole pre-exposure directly enhances the expression of the leucine-rich repeat-receptor-like kinase <i>OsLRR-RLK1</i> Pre-exposure to indole followed by simulated herbivory increases (i.e. primes) the transcription, accumulation, and activation of the mitogen-activated protein kinase OsMPK3 and the expression of the downstream WRKY transcription factor gene <i>OsWRKY70</i> as well as several jasmonate biosynthesis genes, resulting in higher jasmonic acid (JA) accumulation. Analysis of transgenic plants defective in early signaling showed that <i>OsMPK3</i> is required and that <i>OsMPK6</i> and <i>OsWRKY70</i> contribute to indole-mediated defense priming of JA-dependent herbivore resistance. Therefore, herbivore-induced plant volatiles increase plant resistance to herbivores by positively regulating early defense signaling components. |
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| Journal | Plant Cell | |
| Country | Switzerland | |
| Volume | 31(3) | |
| Pages | 687-698 | |
| Year | 2019 | |
| PubMed ID | 30760558 | |
| PubMed Central ID | 6482627 | |
| DOI | 10.1105/tpc.18.00569 | |
| URL | - | |
| Relation | ||
| Gene | AOC DSG1 JAR1 LRR-RLK1 MSRMK2 OG1 WRKY70 | |
| INSD | - | |
| Strain | Wild Core Collection | - |
| Induced Mutation Lines(NIG Collection) | - | |
| Sterile Seed Strain | - | |
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Lethal Embryo Mutantion Strain |
- | |
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Stages in Each Organ - Muant Lines (Gene) |
- | |
| Cultivated Varieties(NIG Collection) | - | |
| Stages in Each Organ | - | |
