Beyond repression of photomorphogenesis: role switching of COP/DET/FUS in light signaling

Curr Opin Plant Biol. 2014 Oct;21:96-103. doi: 10.1016/j.pbi.2014.07.003. Epub 2014 Jul 25.


Light is a pivotal environmental stimulus that promotes plant photomorphogenesis. Substantial progress has been achieved in defining the central repressors of photomorphogenesis, the CONSTITUTIVE PHOTOMORPHOGENIC/DE-ETIOLATED/FUSCA (COP/DET/FUS) loci, in the past 20 years. COP/DET/FUS proteins are well-conserved, and regulate a variety of biological processes in plants and animals. The fact that these proteins contribute to the repression of plant photomorphogenesis by regulating the ubiquitin-proteasome-dependent pathway has been well established. Recently, molecular insight has been gained into the functional diversity of COP/DET/FUS. Here, we review the current research on the roles of COP/DET/FUS, with a focus on the functional conversion of COP1 in photomorphogenesis.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.
  • Review

MeSH terms

  • Arabidopsis Proteins / physiology
  • Light Signal Transduction / physiology*
  • Plant Development / physiology*
  • Ubiquitin-Protein Ligases / physiology


  • Arabidopsis Proteins
  • AT2G32950 protein, Arabidopsis
  • Ubiquitin-Protein Ligases