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Article

SAUR proteins and PP2C.D phosphatases regulate H+-ATPases and K+ channels to control stomatal movements.

Plant physiology - 25 Feb 2021

Wong Jeh Haur, Klejchová Martina, Snipes Stephen A, Nagpal Punita, Bak Gwangbae, Wang Bryan, Dunlap Sonja, Park Mee Yeon, Kunkel Emma N, Trinidad Brendan, Reed Jason W, Blatt Michael R, Gray William M

Abstract excerpt

Activation of plasma membrane (PM) H+-ATPase activity is crucial in guard cells to promote light-stimulated stomatal opening, and in growing organs to promote cell expansion. In growing organs, SMALL AUXIN UP RNA (SAUR) proteins inhibit the PP2C.D2, PP2C.D5, and PP2C.D6 (PP2C.D2/5/6) phosphatases, thereby preventing dephosphorylation of the penultimate phosphothreonine of PM H+-ATPases and trapping them in the...

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PMID: 33631805
DOI: 10.1093/plphys/kiaa023
PMCID: PMC8133658

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 6 Sept 2026. Manifest publication-graph-cohort-2026-09-06.1.

Source receipt: pubmed, retrieved 6 Sept 2026.

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