Repressors of photomorphogenesis

Int Rev Cytol. 2002;220:185-223. doi: 10.1016/s0074-7696(02)20006-6.


The internal programs of plant development are informed in a profound way by environmental light conditions. This review summarizes the contribution of repressor proteins to the light-signaling machinery during seedling development, and discusses the integration of repressors with other, positively acting, light-signaling pathways and auxin and brassinosteroid hormone-signaling pathways. The main focus is placed on the mode of action of the COP/DET/FUS proteins, which were first identified in Arabidopsis but are now emerging in other plants. Their role in regulating protein turnover through ubiquitination is reviewed in light of parallel ongoing investigations of COP/DET/FUS homologues in metazoans and fungi.

Publication types

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

MeSH terms

  • Arabidopsis / genetics
  • Arabidopsis / growth & development*
  • Arabidopsis / metabolism*
  • Arabidopsis Proteins / genetics
  • Arabidopsis Proteins / metabolism
  • Photochemistry*
  • Photosynthesis / physiology*
  • Plant Growth Regulators / genetics
  • Plant Growth Regulators / metabolism
  • Protein Transport / physiology
  • Repressor Proteins / genetics
  • Repressor Proteins / metabolism*
  • Seedlings / genetics
  • Seedlings / growth & development*
  • Seedlings / metabolism*
  • Signal Transduction / physiology


  • Arabidopsis Proteins
  • Plant Growth Regulators
  • Repressor Proteins