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. 2014 May 15;9(5):e97155. doi: 10.1371/journal.pone.0097155

Figure 1. Expression of retinal glial and photoreceptor markers in the caiman retina.

Figure 1

Immunostaining for glial fibrillary acidic protein (GFAP), glial specific calcium binding protein (S100β), glutamate-to-glutamine converting enzyme glutamine synthetase (GS), and DAPI (blue) which shows nuclei of retinal cells. (A) Confocal (left) and Nomarski (right) images showing the expression of GFAP, (B) S100β, and (C) glutamine synthetase. The markers delineated the overall structure of Müller cells: white arrowheads point to the inner limiting membranes (ILM) in the vitreal endfeet areas. White arrows point to stalks of Müller cells. Blue arrowheads show nuclei of pigment epithelium cells. Scale bar  = 20 µm. ILM-inner limiting membrane, GCL-ganglion cell layer, IPL-inner plexiform layer, INL-inner nuclear layer, ONL-outer nuclear layer, OPL-outer plexiform layer, IS-inner segments of photoreceptors, OS-outer segments of photoreceptors, RPL-retinal pigment epithelium layer.