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应用生态学报 ›› 2004, Vol. ›› Issue (1): 149-152.

• 研究论文 • 上一篇    下一篇

苦槛蓝挥发油对小菜蛾的生物活性

何衍彪, 何庭玉, 谷文祥, 冼继东, 张茂新, 冯丽萍   

  1. 华南农业大学理学院, 广州, 510642
  • 收稿日期:2003-03-31 修回日期:2003-06-25
  • 通讯作者: 谷文祥
  • 基金资助:
    中国科学院上海有机化学研究所生命有机重点实验室资助项目

Bioactivity of volatile oils from Myoporum bontioides on Plutella xylostella

HE Yanbiao, HE Tingyu, GU Wenxiang, XIAN Jidong, ZHANG Maoxin, FENG Liping   

  1. South China Agricultural University, Guangzhou 510642, China
  • Received:2003-03-31 Revised:2003-06-25

摘要: 研究了苦槛蓝挥发油对小菜蛾的生物活性.结果表明,苦槛蓝挥发油对小菜蛾成虫具有强烈的驱避作用.小菜蛾成虫在四臂嗅觉仪中首选次数、平均停留时间从多到少的顺序是3臂、1臂、4臂、2臂,具有远离处理臂的趋势,其中雄虫比雌虫明显,且气体流速为200ml·min-1时驱避作用最为显著.按方法3处理第一天对小菜蛾成虫的产卵驱避率(OCR)、干扰作用控制指数(IIPC)分别为94.48%、0.0552.此外,从挥发油中分离到一个液体成分,经鉴定确定为myoporone(C15H22O3).

关键词: 苦槛蓝挥发油, 驱避作用, 小菜蛾, 四臂嗅觉仪

Abstract: This study showed that the volatile oils from Myoporum bontioides had a significant repellent action on Plutella xylostella.When Plutella xylostella adults entered into the 4-arm selective olfactometer,the preferred times and average staying duration,in the order from more to less,were 3,1,4,and 2 arms,which showed a tendency of keeping away from the treatment arms. The males were more sensitive to the volatile oils than the females,when the velocity of flow was 200 ml穖in-1. On the first day of the 3rd bioassay,the oviposition deterrent rate and IIPC of the volatile oils on Plutella xylostella adults was 94.48% and 0.0552,respectively. A liquid component of the volatile oils from Myoporum bontioides was isolated,purified,and identified as myoporone.

Key words: Myoporum bontioides volatiles, Repellent action, Plutella xylostella (DBM) abstract, 4-arm selective olfactometer

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