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

被引：71

作者：

Goldwasser, Yaakov ^{[1
]}

Yoneyama, Kaori ^{[2
]}

Xie, Xiaonan ^{[2
]}

Yoneyama, Koichi ^{[2
]}

机构：

[1] Hebrew Univ Jerusalem, RH Smith Inst Plant Sci & Genet Agr, Fac Agr Food & Environm Qual Sci, IL-76100 Rehovot, Israel

[2] Utsunomiya Univ, Weed Sci Ctr, Utsunomiya, Tochigi 3218505, Japan

来源：

PLANT GROWTH REGULATION | 2008年 / 55卷 / 01期

关键词：

arbuscular mycorrhizal fungi; brassicaceae; germination stimulant; orobanchol; root parasitic plants;

D O I：

10.1007/s10725-008-9253-z

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

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.

引用

页码：21 / 28

页数：8

共 27 条

[1] Plant sesquiterpenes induce hyphal branching in arbuscular mycorrhizal fungi [J].