Article
poc1: an Arabidopsis mutant perturbed in phytochrome signaling because of a T DNA insertion in the promoter of PIF3, a gene encoding a phytochrome-interacting bHLH protein.
Proceedings of the National Academy of Sciences of the United States of America - 11 May 1999
Halliday K J, Hudson M, Ni M, Qin M, Quail P H
Abstract excerpt
The phytochrome family of informational photoreceptors has a central role in regulating light-responsive gene expression, but the mechanism of intracellular signal transduction has remained elusive. In a genetic screen for T DNA-tagged Arabidopsis mutants affected in early signaling intermediates, we identified poc1 (photocurrent 1), which exhibits enhanced responsiveness to red light. This phenotype is absent in...
Topics
- Arabidopsis
- Arabidopsis Proteins
- Basic Helix-Loop-Helix Transcription Factors
- Cloning, Molecular
- DNA, Bacterial
- Gene Expression Regulation, Plant
- Genes, Plant
- Helix-Loop-Helix Motifs
- Hypocotyl