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著者 | Zhang H., Tan X., Li L., He Y., Hong G., Li J., Lin L., Cheng Y., Yan F., Chen J., Sun Z. | |
タイトル | Suppression of auxin signalling promotes rice susceptibility to Rice black streaked dwarf virus infection. | |
Abstract: Auxin plays a fundamental role in plant growth and development, and also influences plant defence against various pathogens. Previous studies have examined the different roles of the auxin pathway during infection by biotrophic bacteria and necrotrophic fungi. We now show that the auxin signalling pathway was markedly down-regulated following infection of rice by Rice black streaked dwarf virus (RBSDV), a dsRNA virus. Repression of the auxin receptor TIR1 by a mutant overexpressing miR393 increased rice susceptibility to RBSDV. Mutants overexpressing the auxin signalling repressors OsIAA20 and OsIAA31 were also more susceptible to RBSDV. The induction of jasmonic acid (JA) pathway genes in response to RBSDV was supressed in auxin signalling mutants, suggesting that activation of the JA pathway may be part of the auxin signalling-mediated rice defence against RBSDV. More importantly, our results also revealed that OsRboh-mediated reactive oxygen species levels played important roles in this defence. The results offer novel insights into the regulatory mechanisms of auxin signalling in the rice-RBSDV interaction. |
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掲載誌 | Mol. Plant Pathol. | |
Country | China | |
刊数 | 20(8) | |
ページ | 1093-1104 | |
発刊年 | 2019 | |
PubMed ID | 31250531 | |
PubMed Central ID | 6640184 | |
DOI | 10.1111/mpp.12814 | |
URL | - | |
関連情報 | ||
遺伝子 | BHLH9 GH3-2 GH3-8 IAA20 IAA31 IAA7 JIOSPR10 MIR393 OG1 PIN1B PIN5A PR1B RBOHA RBOHB RBOHD RBOHE TIFY11D TIR1 YUCCA1 YUCCA6 _ | |
INSD | - | |
系統 |
野生イネ コアコレクション |
- |
突然変異系統(遺伝研 Collection) | - | |
種子不稔系統 | - | |
致死変異体系統 | - | |
組織別発生段階 - 突然変異系統(遺伝子) |
- | |
栽培イネ品種(遺伝研 Collection) | - | |
組織別発生段階 | - |