title: Exudate flavonoids of eight species of Ceanothus (Rhamnaceae).
abstract: Leaf glands of Ceanothus species excrete a lipophilic material that contains a variety of flavonoids. Most of these are aglycones, but some glycosides were also observed. Seven out of eight species exhibit flavonols, whereas flavones are excreted by only one species. Four species produce flavanones and dihydroflavonols; one excretes a remarkable quantity of flavonol glycosides. The exudate flavonoids thus form different patterns that might be characteristic for different Ceanothus species.
authors.affiliation: Institut für Botanik der TU Darmstadt, Schnittspahnstrasse 3, D-64287 Darmstadt, Germany. wollenweber@bio.tu-darmstadt.de
authors.forename: Eckhard
authors.initials: E
authors.lastname: Wollenweber
authors.forename: Marion
authors.initials: M
authors.lastname: Dörr
authors.forename: Bruce A
authors.initials: BA
authors.lastname: Bohm
authors.forename: James N
authors.initials: JN
authors.lastname: Roitman
mesh_terms: D031952:Ceanothus / Q000502:physiology* / Q000648:ultrastructure; D005419:Flavonoids / Q000737:chemistry* / Q000378:metabolism*; D008855:Microscopy, Electron, Scanning; D018515:Plant Leaves / Q000502:physiology* / Q000648:ultrastructure; D018547:Plant Stems / Q000502:physiology; D013045:Species Specificity
chemical_list: D005419:Flavonoids