Insecticidal activity of sesquiterpene lactones and monoterpenoid from the fruits of Carpesium abrotanoides
文献类型: 外文期刊
第一作者: Wu, Hai-bo
作者: Wu, Hai-bo;Wang, Wen-shu;Liu, Ting-ting;Qi, Mu-ge;Feng, Jin-chao;Li, Xin-yuan;Liu, Yi;Wu, Hai-bin
作者机构:
关键词: Carpesium abrotanoides;Sesquiterpene lactone;Monoterpenoid;Insecticidal activity
期刊名称:INDUSTRIAL CROPS AND PRODUCTS ( 影响因子:5.645; 五年影响因子:5.749 )
ISSN:
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收录情况: SCI
摘要: The isolation of secondary metabolites produced by plants can lead to the discovery of new insecticidal agents. The aim of this study was to identify secondary metabolites from the fruits of Carpesium abrotanoides, a well-known medicinal and poisonous plant belonging to the family Asteraceae, with the potential to act as natural insecticides. Two new sesquiterpene lactones 9 beta-hydroxy-1 beta H, 11 alpha H-guaia-4,10(14)-dien-12,8 alpha-olide (1) and 9 beta-hydroxy-1 beta H, 11 beta H-guaia-4,10(14)-dien-12,8 alpha-olide (2) along with four known sesquiterpene lactones (3-6) and one monoterpenoid (7) have been isolated. The structures of these compounds were established on the basis of 1D and 2D NMR data and HRESIMS data interpretation. To characterize their insecticidal activities, bioassays were conducted using two insect pest species of agricultural importance. Compounds 1-7 showed antifeedant effects to 3rd instar larvae of Plutella xylostella (Lepidoptera: Plutellidae) in a concentration-dependant manner with EC50 of 19.84, 42.82, 97.94, 96.90, 39.94, 37.35 and 43.99 mg/L, respectively. Moreover, all of these compounds display stomach-contact combination toxicity toward 4rd instar larvae of Bradysia odoriphaga Yang and Zhang(Diptera: Sciaridae) (LD50 = 18.71,80.29, 230.65,319.67,31.18, 40.87 and 68.47 mg/L, respectively). In general, this is the first report of insecticidal activities of secondary metabolites isolated from C. abrotanoides. Moreover, compound 1 showed the best insecticidal activity in the test, demonstrating its potential to be used as a natural insecticides. (C) 2016 Elsevier B.V. All rights reserved.
分类号: S5
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