A morphological study of the vomeronasal organ and the accessory olfactory bulb in the Korean roe deer, Capreolus pygargus |
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Authors: | Changnam Park Meejung Ahn Jae-Yuk Lee Sang Lee YoungMin Yun Yoon-Kyu Lim Kazumi Taniguchi Taekyun Shin |
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Institution: | 1. Laboratory of Veterinary Anatomy, College of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University, Jeju 690-756, Republic of Korea;2. Department of Anatomy, School of Medicine, Jeju National University, Jeju 690-756, Republic of Korea;3. Jeju Wildlife Rescue Center, Jeju 690-121, Republic of Korea;4. Laboratory of Veterinary Anatomy, School of Veterinary Medicine, Kitasato University, Towada, Aomori 034-8628, Japan |
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Abstract: | The vomeronasal organ (VNO) and accessory olfactory bulb (AOB) of the Korean roe deer (Capreolus pygargus) were studied histologically to evaluate their morphological characteristics. Grossly, the VNO, encased by cartilage, has a paired tubular structure with a caudal blind end and a rostral connection through incisive ducts on the hard palate. In the VNO, the vomeronasal sensory epithelium (VSE) consists of galectin-3-positive supporting cells, protein gene product (PGP) 9.5-positive receptor cells, and basal cells. The vomeronasal respiratory epithelium (VRE) consists of a pseudostratified epithelium. The AOB strata included a vomeronasal nerve layer (VNL), a glomerular layer (GL), a mitral/tufted cell layer, and a granular cell layer. All lectins used in this study, including Bandeiraea simplicifolia agglutinin isolectin B4 (BSI-B4), soybean agglutinin (SBA), Ulex europaeus agglutinin I (UEA-I), and Triticum vulgaris wheat germ agglutinin (WGA), labeled the VSE with varying intensity. In the AOB, both the VNL and the GL reacted with BSI-B4, SBA, and WGA with varying intensity, but not with UEA-I. This is the first morphological study of the VNO and AOB of the Korean roe deer, which are similar to those of goats. |
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Keywords: | AOB accessory olfactory bulb BSI-B4 Bandeiraea simplicifolia agglutinin isolectin B4 GL glomerular layer GrL granular cell layer M/TcL mitral/tufted cell layer PGP protein gene product SBA soybean agglutinin UEA-I Ulex europaeus agglutinin I VNL vomeronasal nerve layer VNO vomeronasal organ VNS vomeronasal system VRE vomeronasal respiratory epithelium VSE vomeronasal sensory epithelium WGA Triticum vulgaris wheat germ agglutinin |
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