Arabidopsis OST1 Protein Kinase Mediates the Regulation of Stomatal Aperture by Abscisic Acid and Acts Upstream of Reactive Oxygen Species Production

During drought, the plant hormone abscisic acid (ABA) triggers stomatal closure, thus reducing water loss. Using infrared thermography, we isolated two allelic Arabidopsis mutants (ost1-1 and ost1-2) impaired in the ability to limit their transpiration upon drought. These recessive ost1 mutations di...

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Veröffentlicht in:	The Plant cell 2002-12, Vol.14 (12), p.3089-3099
Hauptverfasser:	Mustilli, Anna-Chiara, Merlot, Sylvain, Vavasseur, Alain, Fenzi, Francesca, Giraudat, Jérôme
Format:	Artikel
Sprache:	eng
Schlagworte:	Abscisic Acid Abscisic Acid - pharmacology Amino Acid Sequence Arabidopsis Arabidopsis - enzymology Arabidopsis - genetics Arabidopsis Proteins Arabidopsis Proteins - genetics Arabidopsis Proteins - metabolism Biological Transport Biological Transport - genetics Biological Transport - physiology Chromosome Mapping Cloning Cloning, Molecular Complementary DNA Disasters Drought Gene Expression Regulation, Enzymologic Gene Expression Regulation, Enzymologic - genetics Gene Expression Regulation, Enzymologic - physiology Gene Expression Regulation, Plant Gene Expression Regulation, Plant - genetics Gene Expression Regulation, Plant - physiology Genetic mutation Guard cells Life Sciences Molecular Sequence Data Mutation Natural Disasters Phosphatases Phylogeny Plant cells Plant Epidermis Plant Epidermis - cytology Plant Epidermis - physiology Plant tissues Plants Protein Kinases Protein Kinases - genetics Protein Kinases - metabolism Proteins Protoplasts Reactive Oxygen Species Reactive Oxygen Species - metabolism Stomata Transpiration Vegetal Biology Water Water - physiology Water loss
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