【摘要】 通过光镜和透射电镜对细鳞鱼(Brachymystax lenok)的卵巢滤泡细胞进行了研究。结果表明,滤泡细胞起源于非生殖细胞,并且其整个发育过程可分为4个时期:零散细胞期、单层扁平细胞期、多层扁平细胞期和颗粒细胞分泌期。滤泡细胞在初级卵母细胞早期并不具备任何功能,到卵母细胞卵黄积累初期,滤泡细胞上皮协同其合成部分卵膜;卵黄积累旺盛时期,滤泡细胞在此过程中起到信号介导、物质转运和储存的作用;在卵巢退化阶段,滤泡细胞与未发育的卵母细胞形成闭锁卵泡,对卵细胞残体和碎片还具有吞噬、消化等作用。更多还原

【Abstract】 The ovarian follicular cells of Brachymystax lenok were studied by light and transmission electron microscopies. The results show that follicular cells originate from non-germ cells,and its whole development process can be divided into four stages:scattered cell stage,unilayer flat cell stage,multilayer flat cell stage and granule cell secretion stage. At early primary oocyte stages follicular cells don’t have any function;at early yolk accumulating stages follicular cells and follicular cell endepidermis synthesize part egg envelope coordinately;at yolk-quickly-accumulating stages ,follicular cells play a role in signal media,as well as material conveying and storing;at ovaries degenerating stages follicular cells and undeveloped oocytes become corpora atretica,and have the function of phagocytosing and digesting ovotid fragment.更多还原