卵胎生硬骨鱼褐菖鲉卵巢的周期发育研究  

THE OVARIAN CYCLICAL DEVELOPMENT OF OVOVIVIPAROUS TELEOST, Sebastiscus marmoratus

作　　者：林丹军[1] 尤永隆[1] 

机构地区：[1]福建师范大学生物工程学院,福州350007

出　　处：《Zoological Research》2000年第4期269-274,共6页动物学研究（英文）

摘　　要：经组织学观察表明 ,褐菖鲉 (Sebastiscusmarmoratus)的卵巢由卵巢壁、卵巢绒毛和卵巢腔构成。卵巢壁的肌层较厚 ,卵巢上皮具分泌功能。卵巢绒毛位于卵巢腔中 ,呈树枝状。在卵巢绒毛上分布着滤泡。滤泡由卵母细胞和滤泡膜构成。滤泡膜包括内层的颗粒层和外层的鞘膜层。鞘膜层上有丰富的毛细血管。滤泡靠滤泡柄悬挂在卵巢绒毛上。卵巢发育分 7个时期。成熟卵排放在卵巢腔中受精。胚胎浸置在卵巢液中发育。卵巢发育、卵巢成熟系数和卵巢壁厚度随季节呈年周期变化。Histological observations revealed that ovoviviparous teleost, Sebastiscus marmoratus ′ ovaries consisted of ovarian wall,villi ovariales and ovarian cavity.The muscular layer of the ovarian wall was rather thick.The intraovarian epithelium had secretory function.Villi ovariales were in the ovarian cavity with the shape of tree crown.There were follicles in the villi ovariales.A follicle was made of an oocyte and follicular envelope,which consists of an inner layer,granulosa layer and an outer layer,thecal layer.The thecal layer was rich in capillaries.At each side of the follicle there was a stalk of follicle.The two stalks enabled the follicle to be hanged over the villi ovariales.Ovarian development could be divided into 7 stages.Mature eggs were discharged into the ovarian cavity and were fertilized there.Embryos would develope in the ovarian juice.The ovarian development,the coefficient of maturation in the ovary and the thickness of ovarian wall all showed annual changes.

关 键 词：褐菖YOU 卵胎生 卵巢结构 卵巢发育 周期性变化 

分 类 号：Q959.499[生物学—动物学] Q492.5