Related Experiment Video
Updated: Aug 19, 2026

Investigating Tissue- and Organ-specific Phytochrome Responses using FACS-assisted Cell-type Specific Expression Profiling in Arabidopsis thaliana
Published on: May 29, 2010
bHLH class transcription factors take centre stage in phytochrome signalling
Paula D Duek1, Christian Fankhauser
1Center for Integrative Genomics, University of Lausanne, BEP, CH-1015 Lausanne, Switzerland.
Abstract:
The phytochrome family of photoreceptors (there are five phytochromes in Arabidopsis, named phyA to phyE) maximally absorbs red and far-red light and plays important functions throughout the life cycle of plants. Several recent studies have shown that multiple related bHLH (basic helix-loop-helix) class transcription factors play key roles in phytochrome signal transduction. Somewhat surprisingly these transcription factors primarily act as negative regulators of phytochrome signalling. Moreover, in some cases, the phytochromes inhibit those negative regulators.
More Related Videos
07:55Luciferase Complementation Imaging Assay in Nicotiana benthamiana Leaves for Transiently Determining Protein-protein Interaction Dynamics
Published on: November 20, 2017
07:42Rapid Analysis of Circadian Phenotypes in Arabidopsis Protoplasts Transfected with a Luminescent Clock Reporter
Published on: September 17, 2016
Related Concept Videos
Cell Signaling in Plants
Biological Clocks and Seasonal Responses
Photoreceptors and Plant Responses to Light
The Antenna Complex
Plant Hormones
Plant Hormones