Kock J H
J Comp Neurol. 1982 Aug 10;209(3):264-74. doi: 10.1002/cne.902090305.
Using standard paraffin technique the addition of new cells in crucian carp retinas was examined. Between eye diameters 4.4 and 10.0 mm the number of ganglion cells increases from 103,000 to 205,000, INL cells from 1.5 to 3 million, comes from 250,000 to 900,000, and rods from 2 to 9 million. Concomitantly retinal area increases fivefold and the cell densities decrease by 37% for the cones, 57% for the INL cells, and 58% for the ganglion cells, while the rod density remains stable. In relation to the rods the cell ratios at different retinal loci undergo marked changes during growth. The contributions to retinal growth by addition of new neurons and by expansion of the retina have been determined for the different retinal layers. The layer of rods grows exclusively by addition of new rod mosaic. In the cone layer 81% of growth is due to addition of new cone mosaic. In the inner nuclear layer (INL) 56% of growth is due to addition of new cells and in the ganglion cell layer 52% is due to cell addition. In each case retinal expansion accounts for the remainder of increase in retinal area. On morphological grounds six cone types can be found in the crucian carp retina. Their ratios are constant during retinal growth and at different retinal loci.
采用标准石蜡技术研究了鲫鱼视网膜新细胞的添加情况。在眼径4.4至10.0毫米之间，神经节细胞数量从103,000增加到205,000，内核层（INL）细胞从150万增加到300万，双极细胞从250,000增加到900,000，视杆细胞从200万增加到900万。与此同时，视网膜面积增加了五倍，视锥细胞的细胞密度下降了37%，INL细胞下降了57%，神经节细胞下降了58%，而视杆细胞密度保持稳定。在生长过程中，不同视网膜位点相对于视杆细胞的细胞比例发生了显著变化。已确定不同视网膜层通过添加新神经元和视网膜扩张对视网膜生长的贡献。视杆细胞层仅通过添加新的视杆细胞镶嵌来生长。在视锥细胞层，81%的生长归因于添加新的视锥细胞镶嵌。在内核层（INL），56%的生长归因于添加新细胞，在神经节细胞层，52%归因于细胞添加。在每种情况下，视网膜扩张占视网膜面积增加的其余部分。基于形态学原因，在鲫鱼视网膜中可发现六种视锥细胞类型。它们的比例在视网膜生长过程中和不同视网膜位点保持恒定。
