摘要
从组织学方面研究了贻贝雌性生殖系统的构造。卵巢壁薄，由外膜和内生殖上皮构成。外膜主要由结缔组织、单层上皮和薄层肌肉构成，由其产生的许多延伸物伸入卵巢中把卵巢分成一个个不规则小区。内生殖上皮不断增殖产生生殖带，其中含卵原细胞等各阶段雌性生殖细胞和滤泡细胞。卵原细胞较小，核圆形，核仁不明显。初级卵母细胞体积增加，核呈生发泡状，核仁１个，明显。次级卵母细胞卵圆形，细胞体积更大，核仁１个，十分明显。当卵母细胞内的卵黄完成积累后，卵子成熟。卵巢的发育具季节性。
This paper studies histology of the female reproductive system in mussel Mytilus edulis.The ovary is made up of a thin wall which consist of connective tissue and muscle and endogenic epithelium that grow into germinative zone.The wall extend into ovary and divides it into many small part,and the germinative zone produce oogonium developing into other female germ cell.The oogonium is smaller,the volume of oocyte and become larger and larger during vitellogenesis.They have circular nucleus in which there is a round nucleolus.While the accumulation of vitellines was finished the oocyte matured.The ovary has a seasonal developing change.
出处
《水产科学》
CAS
北大核心
1999年第3期26-29,共4页
Fisheries Science
关键词
贻贝
雌性
生殖系统
组织学
Mytilus edulisFemale reproductivesystem Histology
