Arabidopsis brassinosteroid signaling pathway

Sci STKE. 2006 Dec 5;2006(364):cm5. doi: 10.1126/stke.3642006cm5.


Plants control their size through the action of several phytohormones. One class of growth-promoting hormones is the brassinosteroids (BRs), the polyhydroxylated steroid hormones of plants. Here, we present the Arabidopsis-specific proteins that are the founding members of key BR signaling pathway components found in all plants. The genetic studies that identified these components are unique to Arabidopsis owing to its rapid generation time, sophisticated genetics, and facile transformation protocols, thereby highlighting the importance of a reference plant for understanding fundamental processes in all land plants.

Publication types

  • Review

MeSH terms

  • Arabidopsis / genetics
  • Arabidopsis / physiology*
  • Arabidopsis Proteins / metabolism
  • Arabidopsis Proteins / physiology
  • Gene Expression Regulation, Plant
  • Models, Biological
  • Plant Growth Regulators / genetics
  • Plant Growth Regulators / metabolism
  • Plant Growth Regulators / physiology
  • Plant Physiological Phenomena
  • Signal Transduction*
  • Steroids / metabolism*
  • Steroids / physiology*


  • Arabidopsis Proteins
  • Plant Growth Regulators
  • Steroids