Methyl Palmitate, an Acaricidal Compound Occurring in Green Walnut Husks

被引：57

作者：

Wang, Y. N. ^{[1
]}

Wang, H. X. ^{[2
]}

Shen, Z. J. ^{[1
]}

Zhao, L. L. ^{[4
]}

Clarke, S. R. ^{[3
]}

Sun, J. H. ^{[4
]}

Du, Y. Y. ^{[1
]}

Shi, G. L. ^{[1
]}

机构：

[1] Beijing Univ Agr, Beijing 102206, Peoples R China

[2] Shanxi Agr Univ, Taigu 030800, Shanxi, Peoples R China

[3] USDA Forest Serv, Lufkin, TX 75901 USA

[4] Chinese Acad Sci, State Key Lab Integrated Management Pest Insects, Inst Zool, Beijing 100101, Peoples R China

来源：

JOURNAL OF ECONOMIC ENTOMOLOGY | 2009年 / 102卷 / 01期

基金：

中国国家自然科学基金;

关键词：

green walnut husks; methyl palmitate; acaricidal activity; TETRANYCHUS-CINNABARINUS ACARI; JUGLANS-REGIA; FATTY-ACIDS; VIENNENSIS ACARI; SPIDER-MITE; EXTRACTS; CONSTITUENTS; URTICAE; DIPTERA; ESTERS;

D O I：

10.1603/029.102.0128

中图分类号：

Q96 [昆虫学];

学科分类号：

摘要：

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

引用

页码：196 / 202

页数：7

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