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Reference Detail
| Reference | ||
|---|---|---|
| Author | Lee D.K., Kim H.I., Jang G., Chung P.J., Jeong J.S., Kim Y.S., Bang S.W., Jung H., Choi Y.D., Kim J.K. | |
| Title | The NF-YA transcription factor OsNF-YA7 confers drought stress tolerance of rice in an abscisic acid independent manner. | |
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Abstract: The mechanisms of plant response and adaptation to drought stress require the regulation of transcriptional networks via the induction of drought-responsive transcription factors. Nuclear Factor Y (NF-Y) transcription factors have aroused interest in roles of plant drought stress responses. However, the molecular mechanism of the NF-Y-induced drought tolerance is not well understood. Here, we functionally analyzed two rice NF-YA genes, OsNF-YA7 and OsNF-YA4. Expression of OsNF-YA7 was induced by drought stress and its overexpression in transgenic rice plants improved their drought tolerance. In contrast, OsNF-YA4 expression was not increased by drought stress and its overexpression in transgenic rice plants did not affect their sensitivity to drought stress. OsNF-YA4 expression was highly induced by the stress-related hormone abscisic acid (ABA), while OsNF-YA7 was not, indicating that OsNF-YA7 mediates drought tolerance in an ABA-independent manner. Analysis of the OsNF-YA7 promoter revealed three ABA-independent DRE/CTR elements and RNA-seq analysis identified 48 genes downstream of OsNFYA7 action putatively involved in the OsNF-YA7-mediated drought tolerance pathway. Taken together, our results suggest an important role for OsNF-YA7 in rice drought stress tolerance. |
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| Journal | Plant Sci. | |
| Country | unknown | |
| Volume | 241 | |
| Pages | 199-210 | |
| Year | 2015 | |
| PubMed ID | 26706071 | |
| PubMed Central ID | - | |
| DOI | 10.1016/j.plantsci.2015.10.006 | |
| URL | - | |
| Relation | ||
| Gene | ABCG17 BHLH10 BP1 BPH33 DREB1C ENODL18 ESG1 FTSH6 GR2 GRG HAC1;2 HAP2A HAP2B HAP2C HAP2D HAP2E HAP2F HAP2G HAP2H HAP2I HAP2J IGPS MRLK46 NDA2 NEF1 NRAMP6 RAB16C RBBI2-1 WRKY62 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ | |
| 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 | - | |
