Back to Search
Start Over
VARIATION AND LOCALIZATION OF FLAVONOID AGLYCONES IN HELIANTHUS ANNUUS (COMPOSITAE)
- Source :
- American Journal of Botany; February 1987, Vol. 74 Issue: 2 p224-233, 10p
- Publication Year :
- 1987
-
Abstract
- Flavonoid aglycone variation within Helianthus annuus, a species widely distributed throughout North America, was analyzed. Flavonoid aglycones of H. annuusconsist of two types, flavones and chalcones. The flavone aglycones are sequestered in glandular trichomes that occur on both leaf surfaces, whereas the chalcone aglycones appear to be incorporated in the waxy leaf cuticle. Considerable variation in flavonoid profile was observed with some plants exhibiting as few as one, and others as many as seven of the eight aglycones detected. No definable phytogeographic patterns were observed for this flavonoid variation. Flavonoid aglycone variation also did not differentiate the infraspecific taxa within H. annuus.
Details
- Language :
- English
- ISSN :
- 00029122 and 15372197
- Volume :
- 74
- Issue :
- 2
- Database :
- Supplemental Index
- Journal :
- American Journal of Botany
- Publication Type :
- Periodical
- Accession number :
- ejs44615046
- Full Text :
- https://doi.org/10.1002/j.1537-2197.1987.tb08600.x