| Categories genes  | Tags spikelet  drought  tolerance  abiotic stress  ABA  stress  fertility  stomatal  biotic stress  drought stress  drought stress  ABA  abscisic acid  Kinase  stress tolerance  protein kinase 
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  • Key message
    • A rice calcium-dependent protein kinase OsCPK9 positively regulates drought stress tolerance and spikelet fertility.
    • 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
    • Our results demonstrated that OsCPK9 is a positive regulator of abiotic stress tolerance, spikelet fertility, and ABA sensitivity
    • Physiological analyses revealed that OsCPK9 improves drought stress tolerance by enhancing stomatal closure and by improving the osmotic adjustment ability of the plant
    • OsCPK9 transcription was induced by abscisic acid (ABA), PEG6000, and NaCl treatments
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