Chloroplast redox signals: how photosynthesis controls its own genes

Trends Plant Sci. 2003 Jan;8(1):33-41. doi: 10.1016/s1360-1385(02)00005-5.


The photosynthetic apparatus of higher plants and algae is composed of plastid- and nuclear-encoded components, therefore the expression of photosynthesis genes needs to be highly coordinated. Expression is regulated by various factors, one of the most important of which is light. Photosynthesis functions as a sensor for such light signals, and the redox state of photosynthetic electron transport components and redox-active soluble molecules act as regulating parameters. This provides a feedback response loop in which the expression of photosynthesis genes is coupled to the function of the photosynthetic process, and highlights the dual role of photosynthesis in energy fixation and the reception of environmental information.

Publication types

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

MeSH terms

  • Animals
  • Chlamydomonas / genetics
  • Chlamydomonas / physiology
  • Chloroplasts / genetics
  • Chloroplasts / metabolism*
  • Cyanobacteria / genetics
  • Cyanobacteria / physiology
  • Electron Transport
  • Eukaryota / genetics
  • Eukaryota / physiology
  • Gene Expression Regulation
  • Light
  • Models, Biological
  • Nuclear Proteins / genetics
  • Nuclear Proteins / metabolism
  • Oxidation-Reduction / radiation effects
  • Photosynthesis / genetics
  • Photosynthesis / physiology
  • Plants / genetics
  • Plants / metabolism
  • Signal Transduction*


  • Nuclear Proteins