期刊
PHYTOCHEMISTRY
卷 65, 期 8, 页码 1095-1100出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.phytochem.2004.03.003
关键词
Ruta graveolens; Rutaceae; acridone alkaloids; acridone glucosides; accumulation; gravacridondiol glucoside; hairy root culture; HPLC-NMR; root tips; rutacridone
The root tips of Ruta graveolens (common rue) show strong autofluorescence of acridone alkaloids, which are characteristic secondary metabolites of this plant. To study the specific distribution and accumulation of acridone alkaloids in various root segments of Ruta graveolens, root material was harvested from genetically transformed root cultures and extracts were investigated by chromatographic techniques and HPLC-H-1 NMR spectroscopy. The cells of the elongation and differentiation zones contained acridone glucosides and large amounts of acridone alkaloids, mainly rutacridone. Gravacridondiol glucoside was identified as the dominant secondary compound of the root tips and its structure revised by means of spectroscopic methods. In addition, minor acridones, including the structurally revised gravacridontriol glucoside and unknown natural products, were found in the root tip. (C) 2004 Elsevier Ltd. All rights reserved.
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