| 牵牛子提取物对朱砂叶螨的生物活性 |
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| 引用本文： | 王燕,师光禄,吴振宇,王有年.牵牛子提取物对朱砂叶螨的生物活性[J].林业科学,2009,45(3). |
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| 作者姓名： | 王燕 师光禄 吴振宇 王有年 |
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| 作者单位： | 北京农学院植物科学技术系,农业应用新技术北京市重点实验室,农业部都市农业,北方,重点开放实验室,北京,102206 |
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| 基金项目： | 国家自然科学基金，北京市自然科学基金重点项目，北京市科委区县专项资金项目，北京市教委平台建设项目，北京市都市农业学科群项目，北京市属高校人才强教深化计划 |
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| 摘 要： | 报道牵牛子提取物对朱砂叶螨的生物活性.牵牛子石油醚提取物质量浓度为2 mg·mL-1时,对朱砂叶螨的雌成螨和卵24 h后的校正死亡率分别达到93.7%和77.3%,LC50分别为0.697 9和1.303 7 mg·mL-1;对雌成螨24 h后的产卵抑制率和驱避率分别达到82.51%和94.54%.萃取物中石油醚相的活性明显高于甲醇相,质量浓度为2 mg·mL-1时,石油醚萃取物对朱砂叶螨的雌成螨和卵24 h后的校正死亡率分别达到96.2%和82.1%,LC50分别为0.504 2和1.101 6 mg·mL-1;对石油醚萃取物的柱层析分离最终得到流分12个,其中以第8流分杀螨效果最好,质量浓度为2 mg·mL-1时,24 h对雌成螨的校正死亡率达96.4%,LC50是0.447 7mg·mL-1.
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| 关 键 词： | 牵牛子 朱砂叶螨 生物活性 分离 |
Acarocidal Activity of Semen Pharbitidis against Tetranychus cinnabarinus |
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| Wang Yan,Shi Guanglu,Wu Zhenyu,Wang Younian.Acarocidal Activity of Semen Pharbitidis against Tetranychus cinnabarinus[J].Scientia Silvae Sinicae,2009,45(3). |
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| Authors: | Wang Yan Shi Guanglu Wu Zhenyu Wang Younian |
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| Abstract: | The extractants of semen pharbitidis was investigated for their biological activity against Tetranychus cinnabarinus. Slide-dip and Leaf-residue methods were used to measure the biological activity. Liquid-liquid distribution and the silica gel column were used to separate and purify active components. The results indicated that bioactivity (touch kill,oviposit inhibition,repellency) of petroleum ether extract of semen pharbitidis was higher than that of methanol extract. The adjusted mortalities of female ... |
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| Keywords: | semen pharbitidis Tetranychus cinnabarinus biological activity separate |
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