Do Phytochromes and Phytochrome-Interacting Factors Need to Interact?
IN BRIEF by Nancy R. Hofmann [email protected] A new study calls into question whether phytochrome B (phyB) must directly interact with phytochrome-interacting factors (PIFs) to promote light responses. Phytochrome photoreceptors mediate responses to red light in part by inducing the degradation of PIF transcription factors, which generally are repressors of light responses (reviewed in Jeong […]