Phytochromes and Phytochrome Interacting Factors

作者：Vinh Ngoc Pham; Kathare, Praveen Kumar; Huq, Enamul^*

来源：Plant Physiology, 2018, 176(2): 1025-1038.

DOI：10.1104/pp.17.01384

• BHLH TRANSCRIPTION FACTORS
• LIGHT-SIGNAL-TRANSDUCTION
• LOOP-HELIX PROTEIN
• ARABIDOPSIS-THALIANA
• RED-LIGHT
• PHOTOMORPHOGENIC DEVELOPMENT
• CHLOROPHYLL BIOSYNTHESIS
• NEGATIVE REGULATOR
• SEED-GERMINATION
• DEPENDENT PHOSPHORYLATION

The basic helix-loop-helix domain-containing transcription factors that interact physically with the red and far-red light photoreceptors, phytochromes, are called PHYTOCHROME INTERACTING FACTORS (PIFs). In the last two decades, the phytochrome-PIF signaling module has been shown to be conserved from Physcomitrella patens to higher plants. Exciting recent studies highlight the discovery of at least four distinct kinases (PPKs, CK2, BIN2, and phytochrome itself) and four families of ubiquitin ligases (SCFEBF1/2, CUL3(LRB), CUL3(BOP), and CUL4(COP1-SPA)) that regulate PIF abundance both in dark and light conditions. This review discusses these recent discoveries with a focus on the central phytochrome signaling mechanisms that have a profound impact on plant growth and development in response to light.

• 出版日期2018-2