Article
Heterotrimeric G-protein is involved in phytochrome A-mediated cell death of Arabidopsis hypocotyls.
Cell research - 1 Sept 2008
Wei Qing, Zhou Wenbin, Hu Guangzhen, Wei Jiamian, Yang Hongquan, Huang Jirong
Abstract excerpt
The heterotrimeric guanine nucleotide-binding protein (G-protein) has been demonstrated to mediate various signaling pathways in plants. However, its role in phytochrome A (phyA) signaling remains elusive. In this study, we discover a new phyA-mediated phenotype designated far-red irradiation (FR) preconditioned cell death, which occurs only in the hypocotyls of FR-grown seedlings following exposure to white...
Topics
- Arabidopsis
- Arabidopsis Proteins
- Cell Death
- Chloroplasts
- Gene Expression Regulation, Plant
- Heterotrimeric GTP-Binding Proteins
- Hydrogen Peroxide
- Hypocotyl
- Membrane Proteins
- Microscopy, Fluorescence
- Molecular Mimicry
- Mutation
- Oxidoreductases Acting on CH-CH Group Donors
- Phytochrome A
- Protochlorophyllide