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Article

Guard Cell Starch Degradation Yields Glucose for Rapid Stomatal Opening in Arabidopsis.

The Plant cell - 1 Jul 2020

Flütsch Sabrina, Wang Yizhou, Takemiya Atsushi, Vialet-Chabrand Silvere R M, Klejchová Martina, Nigro Arianna, Hills Adrian, Lawson Tracy, Blatt Michael R, Santelia Diana

Abstract excerpt

Starch in Arabidopsis (Arabidopsis thaliana) guard cells is rapidly degraded at the start of the day by the glucan hydrolases α-AMYLASE3 (AMY3) and β-AMYLASE1 (BAM1) to promote stomatal opening. This process is activated via phototropin-mediated blue light signaling downstream of the plasma membrane H+-ATPase. It remains unknown how guard cell starch degradation integrates with light-regulated membrane transport...

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Identifiers

PMID: 32354788
DOI: 10.1105/tpc.18.00802
PMCID: PMC7346545

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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