J Integr Plant Biol. ›› 1998, Vol. 40 ›› Issue (10): -.

• Research Articles •    

Protein Phosphatases and Signaling Cascades in Higher Plants

LUAN Sheng   

Abstract: Protein kinases and phosphatases play a central role in cellular signaling. Although protein kinases have been widely studied in higher plants, protein phosphatases have been largely neglected until recently. The article focuses on the most recent studies that have placed protein phosphatases in the context of several signal cascades in higher plants. These pathways include stomatal regulation and abscisic acid signal transduction, pathogen and stress responses, and developmental control. Studies clearly have demonstrated that protein phosphatases function not only to counterbalance the protein kinases but also take a leading role in many signaling processes.

Key words: Protein phosphatase, Signal transduction, Stomatal regulation, Stress response, Pathogen resistance, Protein tyrosine phosphatase

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