Photosensory perception and signalling in plant cells: new paradigms?

Peter H Quail

Journal: Current opinion in cell biology 2002;14(2):180-8

PMID: 11891117

Full Text on Elsevier Science View on PubMed

Abstract

Plants monitor informational light signals using three sensory photoreceptor families: the phototropins, cryptochromes and phytochromes. Recent advances suggest that the phytochromes act transcriptionally by targeting light signals directly to photoresponsive promoters through binding to a transcriptional regulator. By contrast, the cryptochromes appear to act post-translationally, by disrupting extant proteosome-mediated degradation of a key transcriptional activator through direct binding to a putative E3 ubiquitin ligase, thereby elevating levels of the activator and consequently of target gene expression.

Address: Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720, USA. [email protected]

DOI: 10.1016/s0955-0674(02)00309-5

Link outs

Free resources

Other Literature Sources:

https://www.lens.org/lens/search/patent/list?q=ref...

Subscription / membership required

Full Text Sources:

https://linkinghub.elsevier.com/retrieve/pii/S0955...

MeSH Terms: Cryptochromes, Drosophila Proteins, Eye Proteins, Flavoproteins, Ligases, Photoreceptor Cells, Invertebrate, Phytochrome, Plant Cells, Plant Physiological Phenomena, Plants, Protein Processing, Post-Translational, Receptors, G-Protein-Coupled, Signal Transduction, Transcription Factors, Ubiquitin-Protein Ligases