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Trends Plant Sci. 2003 Apr;8(4):151-3.

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

Author information

1
Biology Department, Penn State University, University Park, PA 16802-5301, USA. sma3@psu.edu

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.

PMID:
12711225
DOI:
10.1016/S1360-1385(03)00052-9
[Indexed for MEDLINE]

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