K+ & Ca2+ enter via the channel and produce depolarization

TLS Online TPP Program

#Id: 5085

#Unit 6. System Physiology – Plant

Kinetics of the induction of transcripts for a MYB-related transcription factor (MYB) and the light-harvesting chlorophyll a/b–binding protein (LHCB) in Arabidopsis after transfer of the seedlings from darkness to continuous white light.

TLS Online TPP Program

#Id: 5086

#Unit 6. System Physiology – Plant

PIFs as constitutive transcriptional repressors in the dark

TLS Online TPP Program

#Id: 5087

#Unit 6. System Physiology – Plant

One of the most extensively characterized of these factors is PIF3, a basic helix-loophelix (bHLH) transcription factor that interacts with both phyA and phyB.

TLS Online TPP Program

#Id: 5088

#Unit 6. System Physiology – Plant

Direct regulation of gene expression by phyB transport to the nucleus.

TLS Online TPP Program

#Id: 5089

#Unit 6. System Physiology – Plant

phyA is rapidly degraded following its activation by light. Thus, protein degradation, in addition to phosphorylation, is emerging as a ubiquitous mechanism regulating many cellular processes, including light and hormone signaling, circadian rhythms, and flowering time.

TLS Online TPP Program

#Id: 5090

#Unit 6. System Physiology – Plant

Some genes encode proteins are called CONSTITUTIVE PHOTO-MORPHOGENESIS1 (COP1), DE-ETIOLATED (DET), and FUSCA (FUS).