Article
ABA-activated SnRK2 protein kinase is required for dehydration stress signaling in Arabidopsis.
Plant & cell physiology - 1 Dec 2002
Yoshida Riichiro, Hobo Tokunori, Ichimura Kazuya, Mizoguchi Tsuyoshi, Takahashi Fuminori, Aronso Jose, Ecker Joseph R, Shinozaki Kazuo
Abstract excerpt
Protein phosphorylation has pivotal roles in ABA and osmotic stress signaling in higher plants. Two protein phosphatase genes, ABI1 and ABI2, are known to regulate these signaling pathways in Arabidopsis: The identity of ABA-activated protein kinases required for the ABA signaling, however, remains to be elucidated. Here we demonstrate that two protein kinases, p44 and p42, were activated by ABA in Arabidopsis...
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