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Reference Detail
| Reference | ||
|---|---|---|
| Author | Chen J., Qi T., Hu Z., Fan X., Zhu L., Iqbal M.F., Yin X., Xu G., Fan X. | |
| Title | <i>OsNAR2.1</i> Positively Regulates drought tolerance and grain yield Under Drought Stress Conditions in Rice. | |
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Abstract: Drought is an important environmental factor that severely restricts crop production. The high-affinity nitrate transporter partner protein <i>OsNAR2.1</i> plays an essential role in nitrate absorption and translocation in rice. Our results suggest that <i>OsNAR2.1</i> expression is markedly induced by water deficit. After drought stress conditions and irrigation, compared with wild-type (WT), the survival rate was significantly improved in <i>OsNAR2.1</i> over-expression lines and decreased in <i>OsNAR2.1</i> RNAi lines. The survival rate of Wuyunjing7 (WYJ), <i>OsNRT2.1</i> over-expression lines and <i>OsNRT2.3a</i> over-expression lines was not significantly different. Compared with WT, overexpression of <i>OsNAR2.1</i> could significantly increase nitrogen uptake in rice, and <i>OsNAR2.1</i> RNAi could significantly reduce nitrogen uptake. Under drought conditions, the expression of <i>OsNAC10, OsSNAC1, OsDREB2a</i>, and <i>OsAP37</i> was significantly reduced in <i>OsNAR2.1</i> RNAi lines and increased substantially in <i>OsNAR2.1</i> over-expression lines. Also, the chlorophyll content, relative water content, photosynthetic rate and water use efficiency were decreased considerably in <i>OsNAR2.1</i> RNAi lines and increased significantly in <i>OsNAR2.1</i> over-expression lines under drought conditions. Finally, compared to WT, grain yield increased by about 9.1 and 26.6%, in <i>OsNAR2.1</i> over-expression lines under full and limited irrigation conditions, respectively. These results indicate that <i>OsNAR2.1</i> regulates the response to drought stress in rice and increases drought tolerance. |
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| Journal | Front Plant Sci | |
| Country | China | |
| Volume | 10 | |
| Pages | 197 | |
| Year | 2019 | |
| PubMed ID | 30846998 | |
| PubMed Central ID | 6393350 | |
| DOI | 10.3389/fpls.2019.00197 | |
| URL | - | |
| Relation | ||
| Gene | 2R_MYB36 DREB2A ERF3 HTNE NAC122 NAR2.1 NRT2.1 NRT2.2 ONAC2 P5CS RAB16C | |
| 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 | - | |
