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

Authors
Journal
Current Opinion in Plant Biology
1369-5266
Publisher
Elsevier
Identifiers
DOI: 10.1016/j.pbi.2014.07.003
Disciplines
  • Biology
  • Ecology
  • Geography

Abstract

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.

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