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| 文献 | ||
|---|---|---|
| 著者 | Sakuraba Y., Han S.H., Yang H.J., Piao W., Paek N.C. | |
| タイトル | Mutation of Rice EARLY FLOWERING3.1 (OsELF3.1) delays leaf senescence in rice. | |
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Abstract: In Arabidopsis, EARLY FLOWERING3 (ELF3) has pivotal roles in controlling circadian rhythm and photoperiodic flowering. In addition, ELF3 negatively regulates leaf senescence by repressing the transcription of PHYTOCHROME-INTERACTING FACTOR4 (PIF4) and PHYTOCHROME-INTERACTING FACTOR5 (PIF5); ELF3 mutants senesce earlier and ELF3-overexpressing (ELF3-OX) plants senesce later than wild type (WT). Here, we show that in contrast to Arabidopsis ELF3, which represses senescence, the rice homolog OsELF3.1 promotes leaf senescence; OsELF3.1 mutants showed delayed senescence and OsELF3.1-OX plants senesced earlier under both dark-induced and natural senescence conditions. Microarray analysis revealed that in the senescing leaves, a number of senescence-associated genes, phytohormone-related genes, and NAC and WRKY family genes (OsNAP, ONAC106, and OsWRKY42) were differentially expressed in OsELF3.1 mutants compared with WT. Interestingly, we found that Arabidopsis plants overexpressing OsELF3.1 show delayed leaf senescence, produce short petioles, and flower late in long days, just like Arabidopsis ELF3-OX plants. This demonstrates that the regulatory functions of ELF3 and OsELF3.1 are conserved between Arabidopsis and rice, but the downstream regulatory cascades have opposite effects. |
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| 掲載誌 | Plant Mol. Biol. | |
| Country | South Korea | |
| 刊数 | 92(1-2) | |
| ページ | 223-34 | |
| 発刊年 | 2016 | |
| PubMed ID | 27380315 | |
| PubMed Central ID | - | |
| DOI | 10.1007/s11103-016-0507-2 | |
| URL | - | |
| 関連情報 | ||
| 遺伝子 | BZIP72 COI1B EIL1 ELF3.2 HD3B NAC106 NAC58 WRKY42 | |
| 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 | - | |
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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 | - | |
