紫珠叶的植物毒性及挥发性成分
Phytotoxicity and volatile constituents from leaves of Callicarpa japonica Thunb.
作者信息
Kobaisy Mozaina, Tellez Mario R, Dayan Franck E, Duke Stephen O
机构信息
Natural Products Utilization Research Unit, USDA-ARS, Box 8048, University, MS 38677, USA.
出版信息
Phytochemistry. 2002 Sep;61(1):37-40. doi: 10.1016/s0031-9422(02)00207-8.
The essential oil from the leaves of Callicarpa japonica was analyzed by GC-MS, and 84 compounds were identified. The main constituents of the essential oil were spathulenol (18.1%), germacrene B (13.0%), bicyclogermacrene (11.0%), globulol (3.3%), viridiflorol (2.6%), alpha-guaiene (2.3%), and gamma-elemene (2.0%). The essential oil constituents of C. japonica were significantly different from those found in our previous work on Callicarpa americana. The oil of C. japonica was selectively phytotoxic to bentgrass compared to lettuce seeds, with 80-100% growth reduction observed at 0.3 mg/ml.
对紫珠叶的挥发油进行了气相色谱-质谱联用（GC-MS）分析，鉴定出84种化合物。挥发油的主要成分是匙叶桉油烯醇（18.1%）、吉马烯B（13.0%）、双环吉马烯（11.0%）、球松素（3.3%）、绿花白千层醇（2.6%）、α-愈创木烯（2.3%）和γ-榄香烯（2.0%）。紫珠的挥发油成分与我们之前对美洲紫珠的研究结果有显著差异。与生菜种子相比，紫珠叶挥发油对翦股颖具有选择性植物毒性，在0.3mg/ml浓度下观察到生长抑制率为80-100%。
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