Echinacea: anatomy, phytochemical pattern, and germination of the achene

Abstract The achenes (fruits) of the therapeutically used ECHINACEA species E. PURPUREA. E. ANGUSTIFOLIA, and E. PALLIDA can be differentiated structurally (shape, anatomy) as well as phytochemically (essential oil components, alkamides). During germination in all three species dodeca-2E,4E,8Z,10E(1...

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Veröffentlicht in:	Planta medica 1991-08, Vol.57 (4), p.384-388
Hauptverfasser:	Schulthess, B.H, Giger, E, Baumann, T.W
Format:	Artikel
Sprache:	eng
Schlagworte:	Agronomy. Soil science and plant productions alkamides Biological and medical sciences chemical analysis Echinacea angustifolia Echinacea purpurea Economic plant physiology Embryo development. Germination fruits Fundamental and applied biological sciences. Psychology General pharmacology germination Growth and development Medical sciences Pharmacognosy. Homeopathy. Health food Pharmacology. Drug treatments plant extracts Plants, Medicinal - anatomy & histology Plants, Medicinal - growth & development Plants, Medicinal - metabolism
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Beschreibung
Zusammenfassung:	Abstract The achenes (fruits) of the therapeutically used ECHINACEA species E. PURPUREA. E. ANGUSTIFOLIA, and E. PALLIDA can be differentiated structurally (shape, anatomy) as well as phytochemically (essential oil components, alkamides). During germination in all three species dodeca-2E,4E,8Z,10E(10Z)-tetraenoic acid isobutylamide (8/9) is mainly formed. Besides this a number of alkamides typical for the root of E. PURPUREA are synthesized in moderate amounts. Also, alkene derivatives of isovalerianic acid are produced. It is an interesting fact that neither 2-monoene alkalmides nor polyacetylenes could be detected during achene germination.
ISSN:	0032-0943 1439-0221
DOI:	10.1055/s-2006-960123