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Reference Detail
| Reference | ||
|---|---|---|
| Author | Kim H., Hwang H., Hong J.W., Lee Y.N., Ahn I.P., Yoon I.S., Yoo S.D., Lee S., Lee S.C., Kim B.G. | |
| Title | A rice orthologue of the ABA receptor, OsPYL/RCAR5, is a positive regulator of the ABA signal transduction pathway in seed germination and early seedling growth. | |
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Abstract: Abscisic acid (ABA) is a phytohormone that positively regulates seed dormancy and stress tolerance. PYL/RCARs were identified an intracellular ABA receptors regulating ABA-dependent gene expression in Arabidopsis thaliana. However, their function in monocot species has not been characterized yet. Herein, it is demonstrated that PYL/RCAR orthologues in Oryza sativa function as a positive regulator of the ABA signal transduction pathway. Transgenic rice plants expressing OsPYL/RCAR5, a PYL/RCAR orthologue of rice, were found to be hypersensitive to ABA during seed germination and early seedling growth. A rice ABA signalling unit composed of OsPYL/RCAR5, OsPP2C30, SAPK2, and OREB1 for ABA-dependent gene regulation was further identified, via interaction assays and a transient gene expression assay. Thus, a core signalling unit for ABA-responsive gene expression modulating seed germination and early seedling growth in rice has been unravelled. This study provides substantial contributions toward understanding the ABA signal transduction pathway in rice. |
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| Journal | J. Exp. Bot. | |
| Country | South Korea | |
| Volume | 63(2) | |
| Pages | 1013-24 | |
| Year | 2012 | |
| PubMed ID | 22071266 | |
| PubMed Central ID | - | |
| DOI | - | |
| URL | - | |
| Relation | ||
| Gene | ABI5 DHN1 LEA3-1 PP2C30 PP2C49 PP2C9 PYL/RCAR1 PYL/RCAR10 PYL/RCAR11 PYL/RCAR13 PYL/RCAR2 PYL/RCAR3 PYL/RCAR4 PYL/RCAR5 PYL/RCAR6 PYL/RCAR7 PYL/RCAR7 PYL/RCAR8 PYL/RCAR9 RAB16A SAPK2 | |
| INSD | - | |
| Strain | Wild Core Collection | - |
| Induced Mutation Lines(NIG Collection) | - | |
| Sterile Seed Strain | - | |
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Lethal Embryo Mutantion Strain |
- | |
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Stages in Each Organ - Muant Lines (Gene) |
- | |
| Cultivated Varieties(NIG Collection) | - | |
| Stages in Each Organ | - | |
