非洲山毛豆提取物及鱼藤酮对菜粉蝶幼虫和蛹体壁的影响

用非注山毛豆叶丙酮提取物或鱼藤酮点滴处理菜粉蝶幼虫，出现畸形幼虫和畸形蛹，对畸形幼虫和畸形蛹的真皮细胞和内外表皮分别进行了超显微结构观察，发现鱼藤酮及其类似物影响昆虫旧表皮的分解和新表皮的合成是导致虫体畸形的主要原因，并对畸形蛹体壁的几丁质，粗脂肪，粗蛋白的含量进行测定，结果表明处理组与对照组存在明显的差异。

Effects of Extracts of Tephrosia vogelii and Rotenone on Cuticle of Larvae and Pupae of Pieris rapae

The larvae of Pieris rapae L. topically treated with acetone extracts of the leaves of Tephrosia vogelii Hook f. or rotenone developed into the malformed larvae and pupae. The ultra structure of the integument of the malformed larvae and pupae were observed. It was found that the deformation caused by rotenone and its analogs mainly resulted from the influences of decomposition of the old cuticle and synthesis of new cuticle. Significant differences in content of the chitin, total fats and total proteins between the treatment and control occurred.