| 桑叶提取物1-DNJ对小菜蛾幼虫生物活性的影响 |
| |
| 引用本文： | 张秀丽,王炎,徐东,刘斌,敖红,张会慧.桑叶提取物1-DNJ对小菜蛾幼虫生物活性的影响[J].中国农学通报,2014,30(19):293-297. |
| |
| 作者姓名： | 张秀丽 王炎 徐东 刘斌 敖红 张会慧 |
| |
| 作者单位： | 1. 东北林业大学生命科学学院2. 吉林吉农高新技术发展股份有限公司3. 安徽隆平高科种业有限公司 |
| |
| 基金项目： | 中央高校基本科研业务费专项资金项目;国家自然科学基金项目;黑龙江省自然科学基金重点项目;国家自然科学基金项目 |
| |
| 摘 要： | 为研究桑树叶片生物活性物质1-DNJ的杀虫作用机理，以小菜蛾(Plutella xylostella L.)为研究对象，利用桑树叶片提取物1-DNJ饲喂小菜蛾3龄幼虫，研究1-DNJ对小菜蛾拒食、触杀、胃毒和生长等生物活性的影响。结果表明，1-DNJ处理后，小菜蛾48 h和72 h的拒食率分别是93.33%和89.25%，拒食中浓度为0.34 g/L和0.58 g/L。同时，1-DNJ对小菜蛾幼虫的生长发育具有明显抑制，小菜蛾化蛹率随着1-DNJ浓度增加而显著下降，但对小菜蛾的蛹重作用不大。1-DNJ对小菜蛾的触杀和胃毒作用效果没有拒食和生长抑制的作用明显。结果说明，桑树叶片中的1-DNJ主要通过拒食作用影响小菜蛾生长，进而达到防控的目的。
|
| 关 键 词： | 华北暴雪 华北暴雪 微物理 微物理降水形成机制 |
| 收稿时间： | 2013/12/26 0:00:00 |
| 修稿时间： | 2014/2/19 0:00:00 |
Effect of 1-DNJ from Mulberry Leaves on the Biological Activity of Plutella xylostella L. |
| |
| Abstract: | Bioassays in laboratory were employed to investigate anti-feeding, growth inhibitory functions of 1-DNJ extracted from mulberry leaves on the 3th Plutella xylostella. Results showed that the highest anti-feeding rates were 93.33 and 89.25% respectively at 24 and 48 h, and the AFC50 were 0.34 and 0.58 g?L-1, respectively. The developmental inhibition assay indicated that weight and pupatation rates decreased with the increasing 1-DNJ concentration. While, the pupal weight of P. xylostella was non-distinctive inhibited. However, the mortality rates of contact toxicity and stomach toxicity were less than anti-feeding and growth inhibitory effect. These results implied that mulberry was treasuries of bioactive substances useful as pesticides |
| |
| Keywords: | Bioactivity |
|
| 点击此处可从《中国农学通报》浏览原始摘要信息 |
| 点击此处可从《中国农学通报》下载免费的PDF全文 |
|
