【摘要】 对羽化不同天数(1、3、5、7d)小地老虎Agrotis ypsilon(Rottemberg)雌蛾性信息素分泌腺体的位置及结构进行了光学显微镜、扫描电镜、透射电镜的观察.结果表明:小地老虎性信息素分泌腺体位于腹部末端第8、9节节间膜腹面.求偶时,伸出节间膜,为一黄白色的囊泡.腺体表面分布着饱满的锥状体.腺体细胞呈单层排列,中央细胞为柱状,细胞核为椭圆形.细胞与细胞间有明显的胞连接,细胞基底膜基褶较多,质膜上分布着微绒毛,并与内表皮连接,内表皮之上含有多层几丁质,胞质中含有空泡、线粒体、脂质粒及光面内质网,并且随着蛾龄的增加,脂质粒和光面内质网的数量会显著增多.研究小地老虎性信息素腺体发育过程中的超微结构,有助于阐明性信息素生物合成、释放的机制.更多还原

【Abstract】 Location and structure of sex pheromone-producing gland in female black cutworm moth were observed by means of optical microscope,scanning electron microscope(SEM),and transmission electron microscope(TEM).The results showed that the gland is an eversible ventral fold situated in the intersegmental membrane(ISM) between the eighth and ninth abdominal segments;during courtship,the intersegmental membrane is extended as a white-yellow cyst.Many plump cones distributes on the surface of the gland.The glandular cells are arranged on one layer,among which the central cells are columnar and the nuclei are elliptical.There is evident conjugation between cells and there are many basal involutions in the basal membrane of cells.Microvilli are distributed on the cytoplasmic membrane and linked with endocuticle on which there are many layers of chitin.The cells contain empty bubbles,mitochondria,lipid granule and smooth endoplasmic reticulum.It was thought that the studying of ultrastructure of the developing sex pheromone-producing gland in the black cutworm moth will help to illustrate the mechanism of the sex pheromone’s biosynthesis and its release.更多还原