Plant Growth Regulation

, Volume 55, Issue 1, pp 21–28

Production of Strigolactones by Arabidopsis thaliana responsible for Orobanche aegyptiaca seed germination

  • Yaakov Goldwasser
  • Kaori Yoneyama
  • Xiaonan Xie
  • Koichi Yoneyama
Original Paper

DOI: 10.1007/s10725-008-9253-z

Cite this article as:
Goldwasser, Y., Yoneyama, K., Xie, X. et al. Plant Growth Regul (2008) 55: 21. doi:10.1007/s10725-008-9253-z

Abstract

The germination stimulants produced by Arabidopsis thaliana, a host of root parasitic plants Orobanche spp. but not of arbuscular mycorrhizal (AM) fungi were examined. Root exudates from the hydroponically grown A. thaliana plants were subjected to reverse phase high performance liquid chromatography (HPLC) and retention times of germination stimulants inducing O. aegyptiaca seed germination were compared with those of strigolactone standards. In addition, the root exudates were analyzed by using HPLC linked with tandem mass spectrometry (LC/MS/MS). A. thaliana was found to exude at least three different germination stimulants of which one was identified as orobanchol. This is the first report of strigolactone production by a non-mycotrophic plant. These results together with recent knowledge imply that strigolactones have other unrevealed functions in plant growth and development.

Keywords

Arbuscular mycorrhizal fungi Brassicaceae Germination stimulant Orobanchol Root parasitic plants 

Abbreviations

DAP

Days after planting

EtOH

Ethanol

HPLC

High-performance liquid chromatography

LC/MS/MS

Liquid chromatography-tandem mass spectrometry

MeOH

Methanol

MRM

Multiple reaction monitoring

Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  • Yaakov Goldwasser
    • 1
  • Kaori Yoneyama
    • 2
  • Xiaonan Xie
    • 2
  • Koichi Yoneyama
    • 2
  1. 1.R.H. Smith Institute of Plant Sciences & Genetics in Agriculture, Faculty of Agricultural, Food & Environmental Quality SciencesThe Hebrew University of JerusalemRehovotIsrael
  2. 2.Weed Science CentreUtsunomiya UniversityUtsunomiyaJapan

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