Dominant Negative Guard Cell K⁺ Channel Mutants Reduce Inward-Rectifying K⁺ Currents and Light-Induced Stomatal Opening in Arabidopsis

Inward-rectifying potassium ($\text{K}^{+}{}_{\text{in}}$) channels in guard cells have been suggested to provide a pathway for K+ uptake into guard cells during stomatal opening. To test the proposed role of guard cell $\text{K}^{+}{}_{\text{in}}$ channels in light-induced stomatal opening, transge...

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