| 付雪枫,张志强.2011.禁食对东方蝾螈胃肠道嗜银细胞形态 和分布密度的影响.动物学杂志,46(2):114-119. |
| 禁食对东方蝾螈胃肠道嗜银细胞形态 和分布密度的影响 |
| Effects of Fasting on the Morphology and Distributive Density of Argyrophilic Cells along the Gastrointestine of Cynops orientalis |
| 投稿时间：2010-10-28 修订日期：2011-01-14 |
| DOI： |
| 中文关键词: 东方蝾螈 禁食 胃肠道 嗜银细胞 |
| 英文关键词:Cynops orientalis Fasting Gastrointestine Argyrophilic cells |
| 基金项目:安徽农业大学稳定人才基金项目(No.wd-2010-02); |
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| 中文摘要: |
| 以改良的龙桂开浸银法,比较了喂食和禁食15 d后的东方蝾螈(Cynops orientalis)胃肠道的长度与重量、嗜银细胞的形态及分布密度的变化。结果表明,禁食后动物的肠鲜重下降,胃长度缩短。禁食处理对嗜银细胞的形态无明显影响,呈圆形、椭圆形、楔形、锥体形、毛笔头状和蝌蚪形等。喂食组的分布密度高峰为幽门,低谷为十二指肠;禁食组的分布密度高峰为贲门,低谷为十二指肠、回肠和直肠。除幽门和十二指肠外,禁食组其余胃肠道各部位的密度都高于喂食组。禁食使东方蝾螈胃肠道前、后端嗜银细胞的密度增加,这可能与东方蝾螈的摄食习性和能较长时间耐受饥饿的生理特性有关。 |
| 英文摘要: |
| Comparisons on the length and mass of digestive organ, morphological feature and distributive density of argyrophilic cells along the gastrointestine of Cynops orientalis were performed between feeding and fasting groups (15 days) by means of Longguikai’s sliver staining method. As compared with feeding group, fasting individuals showed reduced intestine mass and shorter stomach length. Argyrophilic cells showed various morphological features in both feeding and fasting groups, and they were round, oval, wedge-like, cone-like, inkbrush-like, and tadpole-like in shape. Distributive density of argyrophilic cells along the gastrointestine in feeding group showed the highest in the pylorus, and the lowest in the duodenum; Distributive density of argyrophilic cells along the gastrointestine in fasting group showed the highest in the cardia, and the lowest in the duodenum, ileum and rectum. The distributive density of cells in any other segment of gastrointestine except for the pylorus and duodenum in fasting group was higher than that in feeding group. The results show that fasting treatment can increase the density of argyrophilic cells in the front and post portions of the gastrointestine, which may be related to the feeding habit and capacity of enduring starvation for a longer phase in C.orientalis. |
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