Photosensory perception and signalling in plant cells: new paradigms?

  title={Photosensory perception and signalling in plant cells: new paradigms?},
  author={Peter H. Quail},
  journal={Current opinion in cell biology},
  volume={14 2},
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… CONTINUE READING