更新情報研究支援ツール - 文献 - 詳細
文献詳細
| 文献 | ||
|---|---|---|
| 著者 | Hu Y., Wu Q., Peng Z., Sprague S.A., Wang W., Park J., Akhunov E., Jagadish K.S.V., Nakata P.A., Cheng N., Hirschi K.D., White F.F., Park S. | |
| タイトル | Silencing of OsGRXS17 in rice improves drought stress tolerance by modulating ROS accumulation and stomatal closure. | |
|
Abstract: Glutaredoxins (GRXs) modulate redox-dependent signaling pathways and have emerged as key mediators in plant responses to environmental stimuli. Here we report that RNAi-mediated suppression of Oryza sativa GRXS17 (OsGRXS17) improved drought tolerance in rice. Gene expression studies showed that OsGRXS17 was present throughout the plant and that transcript abundance increased in response to drought stress and abscisic acid (ABA) treatment. Localization studies, utilizing GFP-OsGRXS17 fusion proteins, indicated that OsGRXS17 resides in both the cytoplasm and the nuclear envelope. Under drought stress conditions, rice plants with reduced OsGRXS17 expression showed lower rates of water loss and stomatal conductance, higher relative water content, and enhanced survival compared to wild-type controls. Further characterization of the OsGRXS17 down-regulated plants revealed an elevation in H2O2 production within the guard cells, increased sensitivity to ABA, and a reduction in stomatal apertures. The findings demonstrate a critical link between OsGRXS17, the modulation of guard cell H2O2 concentrations, and stomatal closure, expanding our understanding of the mechanisms governing plant responses to drought. |
||
| 掲載誌 | Sci Rep | |
| Country | USA | |
| 刊数 | 7(1) | |
| ページ | 15950 | |
| 発刊年 | 2017 | |
| PubMed ID | 29162892 | |
| PubMed Central ID | 5698295 | |
| DOI | 10.1038/s41598-017-16230-7 | |
| URL | - | |
| 関連情報 | ||
| 遺伝子 | GRX22 LEA3-1 RAB16C | |
| 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 | - | |
