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Reference Detail
| Reference | ||
|---|---|---|
| Author | Tun W., Vo K.T.X., Derakhshani B., Yoon J., Cho L.H., Win KTYS., Lee S.W., Jung K.H., Jeon J.S., An G. | |
| Title | OsWRKY26 negatively regulates bacterial blight resistance by suppressing <i>OsXa39</i> expression. | |
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Abstract: Plants are susceptible to infection by various pathogens with high epidemic potential. <i>Xanthomonas oryzae</i> pv<i>. oryzae</i> (<i>Xoo</i>) causes bacterial blight in rice, one of the most significant diseases in both temperate and tropical regions. In this study, we report the identification and characterization of <i>OsWRKY26</i>, a sucrose-inducible transcription factor, that plays a role in the plant defense responses following <i>Xoo</i> infection. We found that mutant plants with defective <i>OsWRKY26</i> showed enhanced defense response specifically to <i>Xoo</i>, indicating that this transcription factor acts as a negative defense regulator. In contrast, mutant plants did not exhibit higher resistance compared to wild-type (WT) plants when infected with the rice blast fungal pathogen <i>Magnaporthe oryzae</i>. Transcriptomic analysis of mutant and WT plants revealed that several pathogen resistance genes were upregulated in mutants. Of these, we selected <i>OsXa39</i> for further analysis. Transient expression experiments in rice protoplasts showed that OsWRKY26 repressed the expression of a <i>Luciferase</i> reporter gene driven by the <i>OsXa39</i> promoter. Chromatin immunoprecipitation analysis revealed that OsWRKY26 binds directly to the promoter region of <i>OsXa39</i>. These findings suggest that OsWRKY26 negatively regulates the defense response during <i>Xoo</i> infection by repressing <i>OsXa39</i> as well as other pathogen-related genes such as <i>OsXa47</i>, <i>OsBBR1</i>, <i>OsRSR1</i>, <i>OsPR1a</i>, <i>OsPR1-11</i>, <i>OsPR2</i>, and <i>OsPR4c.</i> |
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| Journal | Front Plant Sci | |
| Country | South Korea | |
| Volume | 15 | |
| Pages | 1519039 | |
| Year | 2024 | |
| PubMed ID | 39850209 | |
| PubMed Central ID | 11754229 | |
| DOI | 10.3389/fpls.2024.1519039 | |
| URL | - | |
| Relation | ||
| Gene | BBR1 BG3 PR1A PR1B PR4C RPR1 WRKY26 XA39 XA47 | |
| INSD | - | |
| Strain | Wild Core Collection | - |
| Induced Mutation Lines(NIG Collection) | - | |
| Sterile Seed Strain | - | |
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Lethal Embryo Mutantion Strain |
- | |
|
Stages in Each Organ - Muant Lines (Gene) |
- | |
| Cultivated Varieties(NIG Collection) | - | |
| Stages in Each Organ | - | |
