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. 2014 Dec 16;8:414. doi: 10.3389/fnins.2014.00414

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Copyright © 2014 Hindle and Bainton.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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The cellular and non-cellular layers of the Drosophila compound BBB. Confocal micrographs of cross sections of the adult Drosophila optic lobe showing the localization of the neural lamella (green, left and right panels), the perineurial glia (PG) layer (red, left panels) and the subperineurial glia (SPG) layer (red, right panels). The left panels show the positioning of the neural lamella (identified by the Collagen IV marker Viking-GFP) with respect to the PG (marked by 10 kDa Texas Red Dextran staining). The right panels show the closely apposed neural lamella (marked by the extracellular matrix proteoglycan TROL-GFP) and SPG layer (stained by Moody-β antibody). Scale bar, 20 μm.