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Review
. 2003 Apr;8(4):151-3.
doi: 10.1016/S1360-1385(03)00052-9.

OPEN STOMATA1 opens the door to ABA signaling in Arabidopsis guard cells

Sarah M Assmann  1
Affiliations
Review

OPEN STOMATA1 opens the door to ABA signaling in Arabidopsis guard cells

Sarah M Assmann. Trends Plant Sci. 2003 Apr.

Abstract

The plant hormone abscisic acid plays a crucial role in plant responses to drought, salinity and cold. A recent report shows that mutations in the OST1 gene, encoding a serine-threonine protein kinase, render Arabidopsis thaliana guard cells insensitive to abscisic acid, such that stomata remain open in the presence of this phytohormone.

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