食料對(duì)煙草甲藥劑敏感性及共生菌和解毒酶活性的影響

Effects of Diets on Susceptivity to Insecticides, Yeast-like Symbionts and Activity of Detoxifying Enzymes in Cigarette Beetles

摘要: 從食料-昆蟲-藥劑三者的關(guān)系出發(fā)，研究了由甘草,、麥粒和烤煙3種食料飼養(yǎng)的煙草甲幼蟲對(duì)藥劑敏感性及其體內(nèi)共生菌數(shù)量和酶活性的變化,。結(jié)果表明，取食不同食料的煙草甲幼蟲對(duì)供試殺蟲劑的敏感性有較明顯的差異,，以麥粒飼養(yǎng)的煙草甲幼蟲耐藥性最強(qiáng),，煙草和甘草飼養(yǎng)的較弱。麥粒飼養(yǎng)的煙草甲幼蟲中腸處的共生菌數(shù)量明顯多于其它2種食料飼養(yǎng)的,。同時(shí),，食料也不同程度地影響了煙草甲幼蟲體內(nèi)的解毒酶活性。

Abstract: From the diet-insect- insecticide's relation, the influence of diets on the larvas of cigarette beetles was investigated. The diets included liquorice, kernel and flue-cured tobacco. The results showed that the diets could apparently change the susceptivity of larvas of cigarette beetles to insecticides, and the larvas fed with kernel featured the strongest resistance, and the larvas fed with liquorice showed the weakest resistance. The diets also had a evident effect on abundance of yeast-like symbionts (YLS) in the body of 5th instar larvas. The larvas fed with kernel had more YLS than the others. Besides, the diets also affected the activity of detoxifying enzymes ( CarE and GSTs) of larvas.