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题名: Defensive Sesquiterpenoids from Leaves of Eupatorium adenophorum
作者: Shi Wei1, 2; Luo Shihong1, 2; null(黎胜红)1
刊名: CHINESE JOURNAL OF CHEMISTRY
关键词: Eupatorium adenophorum ; leaves ; chemical defense ; sesquiterpenoids ; antifeedant activity
英文摘要: The invasive plant Eupatorium adenophorum Spreng has caused great economic loss in China, and is gravely threatening the native biodiversity and ecosystem. The plant has been phytochemically investigated for the defensive chemical substances in its leaves. Three active sesquiterpenoids were isolated and identified, which include a new sesquiterpenoid (1), and two known sesquiterpenoids (2, 3). Their structures were established by spectroscopic studies such as 1D- and 2D-NMR and MS analyses. Meanwhile, the antifeedant activities of these compounds against two generalist plant-feeding insects, Helicoverpa armigera and Spodoptera exigua, were carried out. Compound 1 showed significant antifeedant activity against S. exigua with EC50=7.46 mu g/cm2, while compounds 2 and 3 were more active against H. armigera (EC50=2.57 and 3.04 mu g/cm2 respectively). These findings suggest a defensive role of sesquiterpenoids in E. adenophorum against herbivores.
出版日期: 2012-06-01
卷号: 30, 期号:6, 页码:1331-1334
语种: 英语
收录类别: SCI ; IC
学科分类: Chemistry
ISSN号: 1001-604X
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/17614
Appears in Collections:植物化学与西部植物资源持续利用国家重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Kunming Inst Bot, State Key Lab Phytochem & Plant Resources W China, Kunming 650201, Yunnan, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China

Recommended Citation:
Shi Wei;Luo Shihong;Li Shenghong.Defensive Sesquiterpenoids from Leaves of Eupatorium adenophorum,CHINESE JOURNAL OF CHEMISTRY,2012,30(6):1331-1334
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