卵巢发育过程拟穴青蟹前脑神经分泌细胞超微结构的变化  

The Ultrastructural Change of Neurosecretory Cells in the Protocerebrum of Scylla paramamosain During the Ovrian Development

作　　者：叶海辉[1] 黄辉洋[1] 王桂忠[1] 李少菁[1] 

机构地区：[1]厦门大学海洋学系,亚热带海洋研究所,福建厦门361005

出　　处：《厦门大学学报（自然科学版）》2008年第2期265-267,共3页Journal of Xiamen University：Natural Science

基　　金：国家自然科学基金(40776084,40406030,30300269)资助

摘　　要：利用透射电镜,比较观察了拟穴青蟹(Scylla paramamosain)卵巢未发育期、将成熟期和成熟期前脑神经分泌细胞的超微结构.结果表明:在未发育期,前脑神经细胞尚未观察到神经分泌颗粒.在将成熟期,前脑Ⅱ型、Ⅲ型细胞均出现大量的神经分泌颗粒.在成熟期,Ⅱ型、Ⅲ型细胞神经分泌颗粒大量释放.拟穴青蟹卵巢成熟发育过程前脑Ⅱ型、Ⅲ型细胞超微结构的变化,提示Ⅱ型、Ⅲ型细胞可能是促性腺激素细胞,参与生殖内分泌调控.Using the transmission electron microscope,the ultrastructure of neurosecretory cells in the protocerebrum of Scylla pararnarnosain were observed during the undeveloped stage, nearly-ripe stage and ripe stage. The results show： In the undeveloped stage,neurosecretory grain doesn＇t emerge in neurosecretory cells. In nearly-ripe stage,lots of neurosecretory granule emerge in the Type Ⅱ cells and Type Ⅲ cells. In ripe stage, many neurosecretory granule are secreted from the Type Ⅱ cells and Type Ⅲ cells. The ultrastructural change in the protocerebrum of Scylla paramamosain suggest that the Type Ⅱ cells and Type Ⅲ cells attribute to gonad stimulating hormone cells and take part in the reguration of reproductive endocrine.

关 键 词：神经分泌细胞 生殖 拟穴青蟹 前脑 超微结构 

分 类 号：Q421[生物学—神经生物学]