The regulation of plant growth by the circadian clock

Plant Biol (Stuttg). 2012 May;14(3):401-10. doi: 10.1111/j.1438-8677.2011.00548.x. Epub 2012 Jan 27.


Circadian regulated changes in growth rates have been observed in numerous plants as well as in unicellular and multicellular algae. The circadian clock regulates a multitude of factors that affect growth in plants, such as water and carbon availability and light and hormone signalling pathways. The combination of high-resolution growth rate analyses with mutant and biochemical analysis is helping us elucidate the time-dependent interactions between these factors and discover the molecular mechanisms involved. At the molecular level, growth in plants is modulated through a complex regulatory network, in which the circadian clock acts at multiple levels.

Publication types

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

MeSH terms

  • Circadian Rhythm / physiology*
  • Gene Expression Regulation, Plant
  • Hypocotyl / growth & development
  • Photoperiod
  • Plant Development*
  • Plant Growth Regulators / metabolism*
  • Plant Leaves / growth & development
  • Plant Roots / growth & development
  • Plants / genetics
  • Plants / metabolism
  • Signal Transduction


  • Plant Growth Regulators