大草蛉

用Y形嗅觉仪进行的生测表明茶二叉蚜和蚜害茶梢复合体挥发物显著引诱门氏食蚜蝇和大草蛉。

The Y-olfactometer bioassays showed that the volatiles from tea aphids and tea aphid-damaged tea shoots ( PHC ) strongly attracted Sphaerophoria menthastri and Chrysopa septempunctata .

经SDS-PAGE分析，结果表明：大草蛉的卵黄蛋白由165kD和46kD的大小2个亚基组成。

SDS-PAGE analysis showed that the vitellin was composed of two subunits , one large 165 kD and one small 46 kD .

通过GC-MS系统测定了大草蛉雌虫体内保幼激素Ⅲ滴度的变化，从中可以看出大草蛉体内保幼激素滴度的变化与卵黄蛋白发生存在明显的相关性。

The titer variation to juvenile hormone of female worms was detected by GC-MS system , from which there was an obvious correlation between variation regularity to juvenile hormone and vitellogensis 's regularity in Chrysopa septempunctata .

用蒸馏水沉淀法对大草蛉的卵黄蛋白进行了初步纯化，而后又采用离子交换层析和蛋白胶回收的方法对卵黄蛋白进行了进一步的纯化；

Ion exchange chromatography and proteic gel recovery were used to purify it further .