A calcium sensor and its interacting protein kinase are global regulators of abscisic acid signaling in Arabidopsis.

Abstract

The phytohormone abscisic acid (ABA) triggers an oscillation in the cytosolic Ca(2+) concentration, which is then perceived by unknown Ca(2+) binding proteins to initiate a series of signaling cascades that control many physiological processes, including adaptation to environmental stress. We report here that a Ca(2+) binding protein, SCaBP5, and its… (More)

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