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Article

Nitric oxide negatively regulates abscisic acid signaling in guard cells by S-nitrosylation of OST1.

Proceedings of the National Academy of Sciences of the United States of America - 13 Jan 2015

Wang Pengcheng, Du Yanyan, Hou Yueh-Ju, Zhao Yang, Hsu Chuan-Chih, Yuan Feijuan, Zhu Xiaohong, Tao W Andy, Song Chun-Peng, Zhu Jian-Kang

Abstract excerpt

The phytohormone abscisic acid (ABA) plays important roles in plant development and adaptation to environmental stress. ABA induces the production of nitric oxide (NO) in guard cells, but how NO regulates ABA signaling is not understood. Here, we show that NO negatively regulates ABA signaling in guard cells by inhibiting open stomata 1 (OST1)/sucrose nonfermenting 1 (SNF1)-related protein kinase 2.6 (SnRK2.6)...

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Identifiers

PMID: 25550508
DOI: 10.1073/pnas.1423481112
PMCID: PMC4299189

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