Record ID No. |
1787 |
Author(s) |
Goldwasser, Y., Yoneyama, K., Xie, X.A., Yoneyama, K , 2008 |
Affiliation |
Hebrew Univ Jerusalem, RH Smith Inst Plant Sci & Genet Agr, Fac Agr Food & Environm Qual Sci, IL-76100 Rehovot, ISRAEL |
Title |
Production of Strigolactones by Arabidopsis thaliana responsible for Orobanche aegyptiaca seed germination |
Source. Vol.(no):Page |
Plant Growth Regulation.55(1):21-28p. |
Categories |
Arbuscular Mycorrhiza |
Subjects |
Biochemistry |
Sub-subjects |
Miscellaneous |
Organism |
n.a. |
Country |
ISRAEL, Asia |
Abstracts |
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. |