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Reference Detail
| Reference | ||
|---|---|---|
| Author | Wei S., Hu W., Deng X., Zhang Y., Liu X., Zhao X., Luo Q., Jin Z., Li Y., Zhou S., Sun T., Wang L., Yang G., He G. | |
| Title | A rice calcium-dependent protein kinase OsCPK9 positively regulates drought stress tolerance and spikelet fertility. | |
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Abstract: In plants, calcium-dependent protein kinases (CDPKs) are involved in tolerance to abiotic stresses and in plant seed development. However, the functions of only a few rice CDPKs have been clarified. At present, it is unclear whether CDPKs also play a role in regulating spikelet fertility. We cloned and characterized the rice CDPK gene, OsCPK9. OsCPK9 transcription was induced by abscisic acid (ABA), PEG6000, and NaCl treatments. The results of OsCPK9 overexpression (OsCPK9-OX) and OsCPK9 RNA interference (OsCPK9-RNAi) analyses revealed that OsCPK9 plays a positive role in drought stress tolerance and spikelet fertility. Physiological analyses revealed that OsCPK9 improves drought stress tolerance by enhancing stomatal closure and by improving the osmotic adjustment ability of the plant. It also improves pollen viability, thereby increasing spikelet fertility. In OsCPK9-OX plants, shoot and root elongation showed enhanced sensitivity to ABA, compared with that of wild-type. Overexpression and RNA interference of OsCPK9 affected the transcript levels of ABA- and stress-responsive genes. Our results demonstrated that OsCPK9 is a positive regulator of abiotic stress tolerance, spikelet fertility, and ABA sensitivity. |
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| Journal | BMC Plant Biol. | |
| Country | China | |
| Volume | 14 | |
| Pages | 133 | |
| Year | 2014 | |
| PubMed ID | 24884869 | |
| PubMed Central ID | 4036088 | |
| DOI | 10.1186/1471-2229-14-133 | |
| URL | - | |
| Relation | ||
| Gene | BZIP23 BZIP72 CDPK9 LEA3-1 NAC45 NAC6 ONAC2 P5CS RAB16B TRAB1 | |
| 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 | - | |
