Toxicity and behavioral effect of 3β
详细信息 查看全文
- 作者：Sengottayan Senthil-Nathan ; Man-Young Choi ; Hong-Yul Seo ; Chae-Hoon Paik ; K ; aswamy Kalaivani
- 关键词：Dysoxylum ; Triterpenes ; Antifeedant ; Deterrence ; Toxicity ; Leaffolder ; Biology ; Weight ; Oviposition
- 刊名：Ecotoxicology and Environmental Safety
- 出版年：2009
- 出版时间：May 2009
- 年：2009
- 卷：72
- 期：4
- 页码：1156-1162
- 全文大小：650 K
文摘
Treatment of Dysoxylum pure triterpenes 3β,24,25-trihydroxycycloartane and beddomei lactone to the rice leaffolder (RLF), Cnaphalocrocis medinalis (Guenée) (Lepidoptera: Pyralidae), resulted in prolonged larval duration and reduced larval weight. In leaf cut choice assay and topical application experiments, beddomei lactone and 3β,24,25-trihydroxycycloartaneto showed strong antifeedant and growth inhibitor activity against fourth instar larvae of C. medinalis. Also average leaf consumption was decreased (89 % ) by the treatment of the two terpinoids when compared with controls. Number of eggs laid by the female (fecundity) was decreased and oviposition deterrence index was increased due to the treatment. This result further shows that the pure triterpenes of Dysoxylum act as both an antifeedant and chronic toxin to the rice leaffolder larvae.