New Analogues of (E)-beta-Farnesene with Insecticidal Activity and Binding Affinity to Aphid Odorant-Binding Proteins
文献类型: 外文期刊
第一作者: Qiao, Huili
作者: Qiao, Huili;Pelosi, Paolo;Sun, Yufeng;Ling, Yun;Yang, Shaoxiang;Yang, Xinling;Rui, Changhui
作者机构:
关键词: (E)-beta-farnesene;aphids;insecticides;odorant-binding proteins;OBP;ligand-binding assay
期刊名称:JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY ( 影响因子:5.279; 五年影响因子:5.269 )
ISSN: 0021-8561
年卷期: 2011 年 59 卷 6 期
页码:
收录情况: SCI
摘要: (E)-beta-Farnesene is a strong and efficient alarm pheromone in most aphid species. However, applications in agriculture are prevented by its relatively high volatility, its susceptibility to oxidation and its complex and expensive synthesis. To develop novel compounds for aphid control, we have designed and synthesized analogues of (E)-beta-famesene, containing a pyrazole moiety present in several insecticides. Their structures have been confirmed by (1)H NMR, elemental analysis, high-resolution mass spectroscopy and IR. Binding activities to three odorant-binding proteins (OBPs) of the pea aphid Acythosiphon pisum have been evaluated and correlated with their structures with reference to (E)-beta-famesene. Several derivatives were shown both to bind to A. pisum OBPs with a specificity similar to that of (E)-beta-famesene and to have aphicidal activity comparable to that of thiacloprid, a commercial insecticide. The compounds synthesized in this work represent new potential agents for aphid population control and provide guidelines to design analogues of (E)-beta-famesene endowed with both insecticidal and repellent activity for aphids.
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