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鲫鱼视网膜锌离子分布的光、电镜观察

杜卫东, 包永德

中科院上海生理研究所.上海 200031

摘要

明适应条件下,鲫鱼视网膜外网层、部分光感受器、双极细胞、无长突细胞以及神经节细胞胞体锌离子着色明显。含锌光感受器和双极细胞的突起伸入外网层。暗适应条件下,外网层锌离子染色减弱抑或消失(P<0.01)。外核层胞体锌离子染色阴性,少数散在分布的视锥细胞呈锌离子阳性。

关键词： 锌离子; 视网膜; 明、暗适应; neo-Timm染色法; 鲫鱼

Light and electron microscopic observation of zinc distribution in the carp retina

Du Weidong, Bao Yongde

Shanghai Institute of Physiology,Chinese Academy of Sciences.Shanghai 200031

Abstract

In light adaptation, zinc was preponderantly present in the outer plexiform layer (OPL). Both terminals of zinc containing photoreceptors and dendrites of bipolar cells usually extend into zinc staining areas in OPL. In dark adaptation, zinc staining in retina is blanched or only appeared in cytoplasmic bodies of few cones. There is no significant difference between dark and light adaptation in the zinc distribution in bipolar, amacrine and ganglion cells.

Key words: Zinc;Retina;Light and dark adaptation;Neo-Timm staining;Carp

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引用本文：

杜卫东, 包永德. 鲫鱼视网膜锌离子分布的光、电镜观察[J]. 生理学报 1999; 51 (3): .

Du Weidong, Bao Yongde. Light and electron microscopic observation of zinc distribution in the carp retina. Acta Physiol Sin 1999; 51 (3): (in Chinese with English abstract).