PHYTOCHROME-INTERACTING FACTOR 1 Is a Critical bHLH Regulator of Chlorophyll Biosynthesis | Science
PIF1 interacts specifically with the photoactivated conformer of phytochromes A and B, suggesting a signaling pathway by which ... The light signals that induce the deetiolation transition are perceived by members of the cryptochrome (cry) and phytochrome ( ... PHYTOCHROME-INTERACTING FACTOR 1 Is a Critical bHLH Regulator of Chlorophyll Biosynthesis ... We identified a basic helix-loop-helix (bHLH) transcription factor, designated PHYTOCHROME-INTERACTING FACTOR 1 (PIF1), that ...
Plant Development: Regulation by Protein Degradation | Science
Phytochrome may also regulate COP1 function because the COOH terminus of phytochrome B (PhyB) interacts with COP1 in a yeast ... Light is perceived by two major groups of photoreceptors in plants: the red/far red-absorbing phytochromes, and the blue light- ... Indeed, members of the family interact and are phosphorylated in vitro by oat phytochrome A (phyA), and in vivo phosphorylation ... phytochrome A signaling (35), and phytohormone signaling (36-38). For most of these proteins, participation in an SCF complex ...