期刊论文

中文

湖南农业大学学报(自然科学版)

1007-1032

1996

22

2

182-186

10.13331/j.cnki.jhau.1996.02.018

本校为第一机构

草鱼脑垂体由两个不同部位的胚胎细胞形成, 原始口腔背壁外胚层分离出来的细胞构成垂体的前、中腺垂体; 从间脑腹面漏斗体分离出来的细胞构成垂体后腺垂体及神经部。在受精后20h(18-19℃), 原始口腔上皮细胞增生, 开始向内迁移; 受精后29h, 有部分迁移到间脑底部下面; 受精后45h脱膜; 孵化脱膜后9h(受精后54h), 上皮细胞与由漏斗体分离出来的细胞接合; 脱膜后4d(受精后6d), 脑垂体初步形成, 垂体组织开始分化; 脱膜后32d(受精后34d), 垂体形态建成; 脱膜后5mon, 脑垂体分区明显, 细胞分化尚未完成; 到一年, 鱼垂体组织几种分泌细胞分化完成。

The origin and development of the pituitary gland of teleost,Ctenopharyngodon idellus were studied and the results showed that the pituitary gland ofCtenopharyngOdon idellus originated from two different embryonic cells,the doral wall of theoriginal cavum oris formed the pro-adenohypophysis and the meso-adenohypophysis and theinfundibulum of the ventral part of the diencephalon formed the meta-adenohypophysis andthe neurohypophysis. By 20 hours after fertilization(18～19℃),the epithelium cells of the o-riginal cavum oris divided continually,th...