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. 2021 Apr 23;11:8865. doi: 10.1038/s41598-021-88317-1

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© The Author(s) 2021

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Lectin histochemical staining of the olfactory rosette. (A–D,G) LEA marks intensely the olfactory epithelium dividing it clearly from the unstained nonsensory epithelium in both transverse (A) and sagittal (B) sections. In the nonsensory epithelium (C,D,G) it labels big oval neuron-like somas (black arrowheads) in the crypts. Thin dendritic processes can be clearly appreciated (white arrowhead in G). (E,F) UEA labels secretory material, mainly in the crypts, but also in the sensory epithelium. (H–J) BSI-B₄ labels neuron-like cells in the nonsensory epithelium (arrowheads), including its crypts. Scale bars: 100 µm (A,B,D,E,H); 50 µm (C,F,I); 25 µm (G,J).