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| 文献 | ||
|---|---|---|
| 著者 | Wang,Z.X., Yamanouchi,U., Katayose,Y., Sasaki,T. and Yano,M. | |
| タイトル | Expression of the Pib rice-blast-resistance gene family is up-regulated by environmental conditions favouring infection and by chemical signals that trigger secondary plant defences. | |
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Abstract: The rice blast resistance gene Pib is a member of the nucleotide binding site (NBS) and leucine-rich repeat (LRR) class of plant disease resistance (R) genes and belongs to a small gene family. We describe here the isolation and characterization of a Pib homologue (PibH8), and extensive investigation of the expression of the Pib gene family (Pib, PibH8, HPibH8-1, HPibH8-2) under various environmental and chemical treatments. PibH8 shows 42% identity and 60% similarity to Pib and, like Pib, has a duplication of the kinase 1a, 2, and 3a motifs of the NBS region in the N-terminal half of the protein. Interestingly, genes of the Pib family exhibit a diurnal rhythm of expression. RNA gel blot analysis revealed that their expression was regulated dramatically by environmental signals. such as temperature, light and water availability. Their expression was also induced by chemical treatments, such as jasmonic acid, salicylic acid, ethylene and probenazole. Our findings suggest that expression of the Pib gene family is up-regulated by environmental conditions that would favour pathogen infection. This may reflect the evolution of anticipatory control of R gene expression. |
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| 掲載誌 | Plant Mol. Biol. | |
| Country | Japan | |
| 刊数 | 47(5) | |
| ページ | 653-661 | |
| 発刊年 | 2001 | |
| PubMed ID | 11725950 | |
| PubMed Central ID | - | |
| DOI | 10.1023/A:1012457113700 | |
| URL | - | |
| 関連情報 | ||
| 遺伝子 | PIB PIBH8 _ _ | |
| INSD | AB013451 | |
| 系統 |
野生イネ コアコレクション |
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| 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 | - | |
