title: Externally accumulated flavonoids in three Mediterranean Ononis species.
abstract: The Mediterranean Ononis species, O. fruticosa, O. natrix subsp. ramosissima and O. tridentata, have been analyzed for their exudate flavonoids. More than 20 flavonoid aglycones were identified, some of which are rather rare natural compounds. One of them, namely hypolaetin-8,3',4'-trimethyl ether, had been found only once before. The results are presented in a table along with literature data, and the chemotaxonomic impact of the flavonoid patterns is discussed.
authors.affiliation: Institut für Botanik der Technischen Universität 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: Diego
authors.initials: D
authors.lastname: Rivera
authors.forename: James N
authors.initials: JN
authors.lastname: Roitman
mesh_terms: D007887:Fabaceae / Q000737:chemistry* / Q000145:classification; D005419:Flavonoids / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D019083:Mediterranean Region; D013030:Spain
chemical_list: D005419:Flavonoids