石菖蒲根茎提取物对玉米象和谷蠹的有效杀虫活性成分初步分析  

Primary Analysis of Active Ingredients from Acorus gramineus Rhizome Extract on Sitophilus zeamais Motschulsky and Rhizopertha dominica(Fab.)

作　　者：黄衍章[1] 杨长举[1] 薛东[1] 宋旭红[1] 邱艳[1] 

机构地区：[1]华中农业大学城市有害生物防治研究所,武汉430070

出　　处：《中国粮油学报》2008年第1期137-140,156,共5页Journal of the Chinese Cereals and Oils Association

基　　金：国家科技部"十五"重点科技攻关项目(2004BA523B03-02)

摘　　要：采用硅胶柱层析和气相色谱-质谱(GC-MS)联用法,以玉米象(Sitophilus zeamais Motsch.)和谷蠹(Rhizopertha dominicaFab.)成虫为试虫,对石菖蒲(Acorus gramineus)根茎提取物的有效杀虫活性成分进行了初步分析。结果表明:石菖蒲根茎提取物含有多种对玉米象和谷蠹具有生物活性的化合物,主要活性物质为β-细辛醚。未知化合物2可能为石菖蒲根茎内新发现的一种杀虫活性物质,但其分子结构、活性作用方式需要进一步予以研究。Insecticidal ingredients from the Acorus gramineus rhizome extract were analyzed against Sitophilus zeamais Motschulsky and Rh/zopertha dominica （Fab） adults by using silica gel column - chromatographer （CC） and gas chromatography - mass spectrometry （GC - MS）. Results indicate that the rhizome of Acorus gramineus contains several compounds with certain bioactivity on the two pests, and the major active component is [3 - asarone. The unknown component 2 might be a new active ingredient in the Acorus gramineus rhizome, whereas the molecular structure and the mode of action of compound 2 need to be further identified and confirmed as well.

关 键 词：石菖蒲 玉米象 谷蠹 生物活性 成分分析 

分 类 号：S482.39[农业科学—农药学]