摘要
南方鲶的卵巢滤泡细胞源于卵巢基质细胞，从发生到退化分为零散卵泡膜细胞期、单层扁平卵泡膜细胞期、多层扁平卵泡膜细胞期、立方形颗粒细胞期、柱状颗粒细胞期、颗粒细胞分泌期和颗粒细胞退化期。精孔细胞由发育中的滤泡细胞分化形成。初级卵膜源于卵母细胞，次级卵膜由晚期滤泡细胞分泌形成。本文还对滤泡细胞和卵膜的作用进行了阐述。
This paper describes the origin, development and changes of follicle cells of ovary and egg envelopes in the oocytes of Silurus meridionalis Chen, collected from the Hechuan to Beibei of the Jialing River in 1991-1992. The follicle cells are originated from stromal cells of the ovary. According to the histological features, the developmental process of follicle cells can be divided into seven stages: stage of dispersal thecal cells, stage of a single layer of flat shaped thecal cells, stage of several layers of flat shaped thecal cells, stage of cuboidal granules cells, stage of cylindrical granular cells, stage of secretive and retrogressive granules cells. The micropylar cell is developed from a single, large, conical, modified follicle cell early in oogenesis. The primary envelope is originated from the oocyte itself. The secondary envelope may be deposited on the primary envelope surface and it is formed by the substances secreted from the granules cells. The function of the follicle cells and egg envelopes is discussed in this paper.
基金
国家自然科学基金
关键词
南方鲶
卵母细胞
滤泡细胞
精孔细胞
卵膜
Silurus meridionalis
Oocyte
Follicle cell
Micropylar cell
Egg envelopes
