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张育辉, 李丕鹏, 方荣盛, 马新明, 邢立宏. 1991: 中国大鲵视网膜的光镜和扫描电镜研究. 动物学研究, 12(4): 323-328.
引用本文: 张育辉, 李丕鹏, 方荣盛, 马新明, 邢立宏. 1991: 中国大鲵视网膜的光镜和扫描电镜研究. 动物学研究, 12(4): 323-328.
ZHANG Yu-hui, LI Pi-peng, FANG Rong-sheng, MA Xin-ming, XING Li-hong. 1991. Study of Retina in Andrias davidianus With Im and Sem. Zoological Research, 12(4): 323-328.
Citation: ZHANG Yu-hui, LI Pi-peng, FANG Rong-sheng, MA Xin-ming, XING Li-hong. 1991. Study of Retina in Andrias davidianus With Im and Sem. Zoological Research, 12(4): 323-328.

中国大鲵视网膜的光镜和扫描电镜研究

Study of Retina in Andrias davidianus With Im and Sem

  • 摘要: 用光镜和扫描电镜观察了大鲵视网膜各类细胞的形态及分布, 对视细胞和节细胞进行计数。视网腊中三个核层及两个网状层分布均匀,无中央凹。每张视网膜的视细胞总数约130000,节细胞约8000,视杆与视锥之比为8.5:1。扫描电镜下,视杆外节表面的小叶间沟清晰;视杆视锥外节均有从内节伸出的20-30条萼状突起;核周体表面亦有20-30条细胞质突起。文中还报道了幼体视细胞的形态及密度。讨论了上述结构的机能。

     

    Abstract: The retina in Andrias davidianus were observed with light and scanning electron microscope.It is found that:There are about 130000 photoreceptors and 8000 ganglion cells per retina.The rate of rod to cone is 8.5∶1.The hree nuclear layers and the two plexform layers are evenly dispersed in the retina.No forea centralis is faunded.On the surface of both rod and cone,there are 20-30 calycal processes on the outer segment and 20-30 plasma processes which extended from perinuclear body.But,typical interlobuar furrows were only observed on the outer segment of rod.The structure of larval retina was also studied.At last,the relationship between the structure and function is discussed.

     

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