Review

Planta

, Volume 238, Issue 4, pp 615-626

Strigolactones fine-tune the root system

  • Amanda RasmussenAffiliated withDepartment of Plant Production, Faculty of Bioscience Engineering, Ghent UniversityDivision of Plant and Crop Sciences, School of Biosciences, The University of Nottingham
  • , Stephen DepuydtAffiliated withDepartment of Plant Systems Biology, VIBDepartment of Plant Biotechnology and Bioinformatics, Ghent University
  • , Sofie GoormachtigAffiliated withDepartment of Plant Systems Biology, VIBDepartment of Plant Biotechnology and Bioinformatics, Ghent University Email author 
  • , Danny GeelenAffiliated withDepartment of Plant Production, Faculty of Bioscience Engineering, Ghent University

Abstract

Strigolactones were originally discovered to be involved in parasitic weed germination, in mycorrhizal association and in the control of shoot architecture. Despite their clear role in rhizosphere signaling, comparatively less attention has been given to the belowground function of strigolactones on plant development. However, research has revealed that strigolactones play a key role in the regulation of the root system including adventitious roots, primary root length, lateral roots, root hairs and nodulation. Here, we review the recent progress regarding strigolactone regulation of the root system and the antagonism and interplay with other hormones.

Keywords

Adventitious roots Lateral roots Nodulation Root architecture Root hairs