Strigolactone Signaling and Evolution

Annu Rev Plant Biol. 2017 Apr 28;68:291-322. doi: 10.1146/annurev-arplant-042916-040925. Epub 2017 Jan 11.


Strigolactones are a structurally diverse class of plant hormones that control many aspects of shoot and root growth. Strigolactones are also exuded by plants into the rhizosphere, where they promote symbiotic interactions with arbuscular mycorrhizal fungi and germination of root parasitic plants in the Orobanchaceae family. Therefore, understanding how strigolactones are made, transported, and perceived may lead to agricultural innovations as well as a deeper knowledge of how plants function. Substantial progress has been made in these areas over the past decade. In this review, we focus on the molecular mechanisms, core developmental roles, and evolutionary history of strigolactone signaling. We also propose potential translational applications of strigolactone research to agriculture.

Keywords: arbuscular mycorrhiza; development; hormone signaling; strigolactones; symbiosis.

Publication types

  • Review

MeSH terms

  • Biological Evolution*
  • Lactones / metabolism*
  • Mycorrhizae / metabolism
  • Mycorrhizae / physiology
  • Plant Growth Regulators / metabolism
  • Plant Growth Regulators / physiology*
  • Plant Roots / metabolism
  • Plant Roots / parasitology
  • Plants
  • Rhizosphere
  • Signal Transduction


  • Lactones
  • Plant Growth Regulators