中国黄羽鹌鹑消化道嗜银细胞胚后发育的分布及形态学观察  

Distribution and Morphology of Argyrophilic Cells in the Digestive Tract during Post-embryonic Development of Chinese Yellow Quail

作　　者：李沛[1] 何敏[1] 郭红瑞 廖琼 潘燕[1] 邓天怀[1] 

机构地区：[1]动物疫病与人类健康四川省重点实验室四川农业大学动物医学院,雅安625014

出　　处：《动物学杂志》2012年第5期101-109,共9页Chinese Journal of Zoology

基　　金：教育部创新团队发展计划项目(No.IRT0848);四川省教育厅科研项目(No.10ZB035);大学生创新性实验计划项目

摘　　要：采用Grimelius银染法,对中国黄羽鹌鹑(Coturnix aponica)消化道嗜银细胞胚后发育的分布规律和形态结构进行了观察。结果显示,口腔、食管、嗉囊和泄殖腔中未发现嗜银细胞,其余部位均有不同数量的分布,其分布呈波浪形,大多数日龄段在腺胃和结直肠中存在2个分布高峰,回肠次之,十二指肠、空肠、盲肠较少,随着日龄增加,不同部位嗜银细胞数量均先增加,后减少,在100 d时达高峰。嗜银细胞主要分布在腺胃腺叶内细胞之间、肠黏膜上皮细胞之间及固有层内,形态多呈圆形、椭圆形、锥形及梭形等。结合嗜银细胞形态与功能间的联系,发现消化道内广泛分布着4种类型的嗜银细胞。我们认为中国黄羽鹌鹑消化道的嗜银细胞具有内分泌、外分泌及旁分泌3种功能,其分布特点可能与动物的食性及生活环境有关。Grimelius method was used to study the distribution and morphological features of argyrophilic cells in the digestive tract during post-embryonic development of Chinese Yellow Quail （Coturnix aponica）. Results showed that argyrophilic cells did not exist in oral cavity, esophagus, ingluvies and cloaca portions, but distributed throughout most of the other portions in different densities. The argyrophilic cells distributed in a wavelike pattern. In most developmental stages, argyrophilic cells were rich in glandular stomach and colorectum, less rich in ileum, and much less in duodenum, jejunum and cecum. With the development, argyrophilic cells in different portions were all increased, reached a peak at 100 days, and then decreased. Argyrophilic ceils were observed mostly in glandular stomach leaves, between the epithelial cells and in the lamina propria. They were in different shapes, mainly round, oval, tapering, fusiform etc. According to their structure and morphology, we classified argyrophilic ceils in the digestive tract into four types and they might have endocrine, exocrine and paracrine functions. The distribution of argyrophilic cells was possibly related with the feeding habit and living environment of Chinese yellow quail.

关 键 词：中国黄羽鹌鹑 消化道 嗜银细胞 

分 类 号：Q954.4[生物学—动物学]