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Reference Detail
| Reference | ||
|---|---|---|
| Author | Ye M., Kuai P., Chen S., Lin N., Ye M., Hu L., Lou Y. | |
| Title | Silencing a Simple extracellular leucine-rich repeat Gene <i>OsI-BAK1</i> Enhances the Resistance of Rice to Brown Planthopper <i>Nilaparvata lugens</i>. | |
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Abstract: Many plant proteins with extracellular leucine-rich repeat (eLRR) domains play an important role in plant immunity. However, the role of one class of eLRR plant proteins-the simple eLRR proteins-in plant defenses against herbivores remains largely unknown. Here, we found that a simple eLRR protein OsI-BAK1 in rice localizes to the plasma membrane. Its expression was induced by mechanical wounding, the infestation of gravid females of brown planthopper (BPH) <i>Nilaparvata lugens</i> or white-backed planthopper <i>Sogatella furcifera</i> and treatment with methyl jasmonate or abscisic acid. Silencing <i>OsI-BAK1</i> (ir-<i>ibak1</i>) in rice enhanced the BPH-induced transcript levels of three defense-related WRKY genes (<i>OsWRKY24</i>, <i>OsWRKY53</i> and <i>OsWRKY70</i>) but decreased the induced levels of ethylene. Bioassays revealed that the hatching rate was significantly lower in BPH eggs laid on ir-<i>ibak1</i> plants than wild-type (WT) plants; moreover, gravid BPH females preferred to oviposit on WT plants over ir-<i>ibak1</i> plants. The exogenous application of ethephon on ir-<i>ibak1</i> plants eliminated the BPH oviposition preference between WT and ir-<i>ibak1</i> plants but had no effect on the hatching rate of BPH eggs. These findings suggest that OsI-BAK1 acts as a negative modulator of defense responses in rice to BPH and that BPH might exploit this modulator for its own benefit. |
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| Journal | Int J Mol Sci | |
| Country | China | |
| Volume | 22(22) | |
| Pages | ||
| Year | 2021 | |
| PubMed ID | 34830062 | |
| PubMed Central ID | 8622231 | |
| DOI | 10.3390/ijms222212182 | |
| URL | - | |
| Relation | ||
| Gene | ACO2 ACS1 BAK1 ERF2 MSRMK2 WRKY24 WRKY53 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 | - | |
