Grünert U, Greferath U, Boycott B B, Wässle H
Max-Planck-Institut für Hirnforschung, Frankfurt/Main, Germany.
Vision Res. 1993 Jan;33(1):1-14. doi: 10.1016/0042-6989(93)90052-x.
Retinae of macaque monkeys were immuno-stained with antibodies against GABAA-receptors. In peripheral retina most ganglion cells were immunoreactive. In central retina, around the fovea, staining in the ganglion cell layer was selective and only 5-8% of all ganglion cells were labelled: these had the largest cell bodies and their dendrites occupied a broad stratum in the middle of the inner plexiform layer. From comparison with Golgi-stained ganglion cells it is concluded that the entire population of parasol (P alpha)-cells at the fovea was labelled. The mosaic and sampling properties of parasol cells were determined by combining dendritic field measurements of Golgi-stained cells with their density when immuno-stained. There is convergence of 30-50 cones onto each foveal parasol ganglion cell. The dendritic fields of both ON- and OFF-parasol cells provide complete retinal coverage. The Nyquist limits of their mosaics are 4 min of arc.
用抗γ-氨基丁酸A型受体（GABAA-receptors）抗体对猕猴视网膜进行免疫染色。在周边视网膜，大多数神经节细胞具有免疫反应性。在中央视网膜，在中央凹周围，神经节细胞层的染色具有选择性，所有神经节细胞中只有5 - 8%被标记：这些细胞具有最大的细胞体，其树突占据内网状层中部的一个宽层。通过与高尔基染色的神经节细胞比较得出结论，中央凹处的整个伞状（Pα）细胞群体都被标记。通过将高尔基染色细胞的树突野测量与其免疫染色时的密度相结合，确定了伞状细胞的镶嵌和采样特性。每个中央凹伞状神经节细胞上有30 - 50个视锥细胞汇聚。ON-和OFF-伞状细胞的树突野提供了完整的视网膜覆盖。它们镶嵌的奈奎斯特极限为4分视角。
