期刊
PHYTOCHEMISTRY
卷 61, 期 5, 页码 573-578出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0031-9422(02)00284-4
关键词
Ruta graveolens L.; essential oil; allelochemicals; 2-ketones; terpenoids; germination; root inhibition; Raphanus sativus L.
The essential oil of aerial parts of Ruta graveolens was obtained by hydrodistillation with a 0.74% yield on a dry weight basis. Thirty-eight components were identified by GC and GC-MS analyses. 2-Ketones predominated in the essential oil, with undecan-2-one (46.8%) and nonan-2-one (18.8%) as the main constituents. The essential oil and some of its constituents were tested for their allelopathic activity in vitro on radish germination and radicle growth in light and darkness. The essential oil and some of its minor constituents were effective and dose-dependent inhibitors of both the germination and radicle growth; 2-ketones are not active. The possible allelopathic activity of rue essential oil and some its isolated constituents is reported. (C) 2002 Elsevier Science Ltd. All rights reserved.
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