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Strigone, isolation and identification as a natural strigolactone from Houttuynia cordata
- Source :
-
Phytochemistry . Mar2013, Vol. 87, p60-64. 5p. - Publication Year :
- 2013
-
Abstract
- Abstract: (+)-Strigone was described earlier in a paper on isolation of strigol and then recently examined for hyphal branching activity in arbuscular mycorrhizal fungi as a strigolactone. Herein, it was isolated from root exudates of Houttuynia cordata, and its structure was confirmed by direct comparison with synthetic standards in LC–MS/MS, GC–MS, and 1H and 13C NMR analyses. The stereochemistry of strigone was determined by comparing the CD spectra and RR t in chiral LC–MS/MS with those of synthetic (+)-strigone and (−)-strigone. Four stereoisomers of strigone exhibited clearly different levels of stimulation activity on the seeds of three root parasitic plants, Orobanche minor, Phelipanche ramosa, and Striga hermonthica. (+)-Strigone was a highly potent germination stimulant on S. hermonthica and also on P. ramosa, but less active than ent-2′-epi-strigone on O. minor. In addition to strigone, H. cordata was found to produce strigol, sorgomol, and 5-deoxystrigol, indicating that this plant produces mainly strigol-type strigolactones derived from 5-deoxystrigol. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00319422
- Volume :
- 87
- Database :
- Academic Search Index
- Journal :
- Phytochemistry
- Publication Type :
- Academic Journal
- Accession number :
- 85176830
- Full Text :
- https://doi.org/10.1016/j.phytochem.2012.11.013