Article
A G protein-coupled receptor is a plasma membrane receptor for the plant hormone abscisic acid.
Science (New York, N.Y.) - 23 Mar 2007
Liu Xigang, Yue Yanling, Li Bin, Nie Yanli, Li Wei, Wu Wei-Hua, Ma Ligeng
Abstract excerpt
The plant hormone abscisic acid (ABA) regulates many physiological and developmental processes in plants. The mechanism of ABA perception at the cell surface is not understood. Here, we report that a G protein-coupled receptor genetically and physically interacts with the G protein alpha subunit GPA1 to mediate all known ABA responses in Arabidopsis. Overexpressing this receptor results in an ABA-hypersensitive...
Topics
- Abscisic Acid
- Arabidopsis
- Arabidopsis Proteins
- GTP-Binding Protein alpha Subunits
- Gene Expression Profiling
- Genes, Reporter
- Germination
- Models, Biological
- Mutation
- Plant Growth Regulators
- Plant Leaves
- Plants, Genetically Modified
- Potassium Channels
- Protein Binding