【摘要】 对直翅目蝗总科中华稻蝗[Oxyachinesis(Thunberg)]卵子发生过程进行细胞学观察及阶段划分,成虫期卵子发生可分为卵母细胞分化、卵母细胞营养及卵母细胞卵黄形成3个时期,并且可划分为8个阶段:第1阶段,卵母细胞位于卵原区,进行第一次减数分裂前期;第2阶段,卵母细胞增大,滤泡上皮细胞开始出现;第3阶段,滤泡上皮细胞呈扁平状排列为一层包围在卵母细胞外,卵室内有空隙;第4阶段,滤泡上皮细胞呈立方形,卵室内无空隙,胚泡向卵质周缘移动;第5阶段,卵母细胞体积增大,滤泡上皮细胞长柱状,细胞间开始出现空位;第6阶段,卵母细胞胞质周缘有泡状小体出现并有卵黄颗粒积累;第7阶段,卵母细胞胞质内充满了染色较深的卵黄球,卵黄物质逐渐被卵黄膜包被,胚泡膜消失;第8阶段,卵黄积累完成,滤泡上皮细胞分泌卵壳蛋白凝聚固化而成为卵壳。更多还原

【Abstract】 The present paper is a report on the oogenesis of Oxya chinesis(Thunberg). Oogenesis in the adult stage could be divided into 8 stages. 1. Oocytes were located in the germarium, first meiotic division occurred at this stage. 2. Oocytes grew in size and follicular cells began to appear. 3. follicular cells were flat and diffenrentiated to encircle the oocyte. There was spaces between follicular cells and oocyte. 4. Follicular cells became cubic in shape and encircled the oocyte completely. The germinal vescile of the oocyte moved into the periplasm. 5. Oocyte grew in size.Follicular cells became columned and open spaces appeared between them. 6. Vesciles appeared in the periplasm. Vitillin granules began to accumulate. 7. Ooplasm was filled up with vitellin granules which were stained dark. Vitellin granules were gradually covered by vitellin membrane. The membrane of the germinal vescile disappeared. 8. Accumulation of vitellin completed. Follicular cells secreted egg shells.更多还原