The OST1 gene, ABA and stomata

 

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

by Assmann S. M. (2003)image_normal

in Trends Plant Sci. 8, 151–153. –

CrossRef |PubMed |CAS – PubMed Abstract | CrossRef Full Text | Google Scholar 

http://www.ncbi.nlm.nih.gov/pubmed/12711225

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.

Published by

Willem Van Cotthem

Honorary Professor of Botany, University of Ghent (Belgium). Scientific Consultant for Desertification and Sustainable Development.

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