Methyl palmitate, an acaricidal compound occurring in green walnut husks.
作者： Y. N. Wang , H. X. Wang , Z. J. Shen , L. L. Zhao , S. R. Clarke
DOI: 10.1603/029.102.0128
关键词:
摘要: Walnut, Juglans regia L., is known for its insecticidal activities to a range of herbivores and microbes. Isolation identification bioactive compounds from walnut potential approach the development new pesticides. Laboratory experiments were carried out investigate acaricidal green husk extracts walnut. Bioassay-guided fractionation petroleum-ether led common plant-borne fatty acid ester, methyl palmitate (MP), which produced strong activity (62.8% mortality) at 1 mg/ml 24 h. The structure MP was characterized with infrared spectrum NMR, confirmed using an authentic standard on high-performance liquid chromatography. Based slide dip bioassay, 10 provided 97.9% mortality against adults Tetranychus cinnabarinus (Boisduval) (Acari: Tetranychidae), whereas eggs much lower (57.2%).
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