七种啮齿动物视觉器官形态结构的比较研究

七种啮齿动物视觉器官形态结构的比较研究

张育辉, 刘加坤

陕西师范大学生物系

出版日期:2006-07-29 发布日期:2008-01-05

THE C0MPARATIVE STUDIES 0N THE SHAPE AND STRUCTURE 0F THE 0PTIC 0RGAN IN SEVEN SPECIES 0F R0DENTS

ZHANG Yuhui, LIU Jiakun

Online:2006-07-29 Published:2008-01-05

摘要/Abstract

摘要： 用光镜和扫描电镜观察褐家鼠(Rattus norvegicus)、黑线姬鼠(Apodemus agrarius)，大仓鼠(Cricetulus triton)、棕色田鼠(Microtusmandarinus)、甘肃鼢鼠(Myospalax cansus)、达乌尔黄鼠(Spermophilus dauricus)和岩松鼠(Sciurotamias davidianus)的视觉器官形态与扮造，对其视网膜的厚度、各核层胞核的层数及大小进行了比较。在扫描电镜下统计了褐家鼠和达乌尔黄鼠的视细胞密度。结果表明，鼠类视觉器官的形态结构与其生活习性相关。即生活习性相似的种类，视器的形态结构也相似；即生活习性差异较大的种类，视器的形态结构差异也较大。同时还发现夜行性鼠视网膜上的核层局部增厚，黄鼠枧网膜上的内外侧之间不对称。文中对这些结构与机能进行了讨论。

关键词: 啮齿类, 视网膜, 生态形态学

Abstract: In seven species of rodents，Rattus moroegicus，Apodemus agrarius，Cricetulun triton，Microtus mandarinus，Myospalaxcansus ，Spermophilus dauricus and Sciurotamias davidianus，the shape of the eyeballs，the thickness of each layer in the retinas，the layer number and the size of nuclei in retinas were observed and eompared by LM and SEM ．The photoreceptor density of R．norvegicus and S．dauricus were counted by SEM．It is concluded that the shape and structure of the optic organ show much similarity among the species with similar habits，and show much difference among the mice with different habits．In addition，it is found that there is partly thickening in the retinas of night mice．Within the retinas ofR．dauricus，there is thickness asymmetry between the medialis and 1ateralis．The relationship between the structure and function was discussed．

Key words: Rodents, Retina, Ecomorphology

张育辉, 刘加坤. 七种啮齿动物视觉器官形态结构的比较研究[J]. .

ZHANG Yuhui, LIU Jiakun. THE C0MPARATIVE STUDIES 0N THE SHAPE AND STRUCTURE 0F THE 0PTIC 0RGAN IN SEVEN SPECIES 0F R0DENTS[J]. .

[1]	徐萌萌王德华. 长爪沙鼠和布氏田鼠汗腺的分布和密度[J]. 兽类学报, 2015, 35(1): 80-86.
[2]	贾婷，林爱青，王睿，朱万龙，肖彩虹，刘春燕，孟丽华，练硝，王政昆. 云南不同地区中缅树鼩头骨形态特征的比较[J]. , 2009, 29(3): 259-268.
[3]	王艳妮　周材权　张君　周友兵　胡锦矗　熊耀武. 唐家河自然保护区夏季啮齿类的空间生态位[J]. , 2005, 25(1): 39-44.
[4]	吴德林, 邓向福. 云南热带和亚热带山地森林鼠形啮齿类的群落结构 Ⅰ、多样性相,对丰盛度,密度和物量[J]. , 1988, 8(1): 25-32.