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Histomorphology of vomeronasal organ in Scincella tsinlingensis / Histomorfología del órgano vomeronasal en Scincella tsinlingensis
Yang, Chun; Kou, Zhaoting; Li, Lin; Gao, Yanyan; Gong, Zhiwei.
  • Yang, Chun; Shanxi Normal University. School of Life Sciences. Linfen. CN
  • Kou, Zhaoting; Shanxi Normal University. School of Life Sciences. Linfen. CN
  • Li, Lin; Shanxi Normal University. School of Life Sciences. Linfen. CN
  • Gao, Yanyan; Shanxi Normal University. School of Life Sciences. Linfen. CN
  • Gong, Zhiwei; Shanxi Normal University. School of Life Sciences. Linfen. CN
Int. j. morphol ; 38(3): 602-610, June 2020. graf
Artigo em Inglês | LILACS | ID: biblio-1098294
ABSTRACT
Due to the great change in the morphology of squamate vomeronasal organ (VNO), the histomorphology characteristics of VNO in Scincella tsinlingensis were studied by light and electronic microscopy. The results indicated that the VNO of S. tsinlingensis was located at the base of nasal cavity and consisted of a mushroom body situated anteroventrally and a sensory epithelium (SE) situated dorsocaudally. SE was composed of supporting cells, receptor cells and basal cells, and the supporting cells contained secretory granules near the surface membrane. Most of receptor cells were irregular in shape with long cytoplasmic extensions and characterized by microtubules, vesicles, and mitochondria. The basal cells with long cytoplasmic extensions were also irregular in shape and appeared a greater electron density than others. The thick nerve bundles were found on the dorsomedial area of VNO, and the surface of mushroom body was non-sensory epithelium consisting of ciliated and basal cells, without goblet cells. Epithelial cells were arranged in irregular, with many cilia and microvilli distributed on its free surface. Cells on the basal layer were irregularly circular in shape and arranged sparsely. Taken together, the results indicated that the fine structure of VNO in S. tsinlingensis was similar to other species from scincomorphs.
RESUMEN
Debido al gran cambio en la morfología del órgano vomeronasal (OVN), se estudiaron las características histomorfológicas en la Scincella tsinlingensis por microscopías de luz y electrónica. Los resultados indicaron que el OVN de S. tsinlingensis se localizaba en la base de la cavidad nasal y consistía en un cuerpo como hongo situado anteroventralmente y un epitelio sensorial (ES) situado dorso caudamente. El ES estaba compuesto de células de soporte, células receptoras y células basales, y las células de soporte contenían gránulos secretores cerca de la membrana superficial. En gran parte de la mayoría de las células receptoras se observó una forma irregular con largas extensiones citoplasmáticas, caracterizadas por microtúbulos, vesículas y mitocondrias. Las células basales con extensiones citoplasmáticas también tenían forma irregular y algunas parecían tener una mayor densidad de electrones. Los haces gruesos nerviosos se encontraron en el área dorsomedial del OVN, la superficie del cuerpo de estaba compuesto de epitelio no sensorial y consistía de células ciliadas y basales, sin células caliciformes. Las células epiteliales estaban dispuestas de manera irregular, con muchos cilios y microvellosidades distribuidas en su superficie libre. Las células en la capa basal eran escasas y de forma circular irregular. Tomados en conjunto, los resultados indicaron que la estructura fina del OVN en S. tsinlingensis era similar a otras especies de scincomorpha.
Assuntos


Texto completo: DisponíveL Índice: LILACS (Américas) Assunto principal: Órgão Vomeronasal / Lagartos Limite: Animais Idioma: Inglês Revista: Int. j. morphol Assunto da revista: Anatomia Ano de publicação: 2020 Tipo de documento: Artigo País de afiliação: China Instituição/País de afiliação: Shanxi Normal University/CN

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Texto completo: DisponíveL Índice: LILACS (Américas) Assunto principal: Órgão Vomeronasal / Lagartos Limite: Animais Idioma: Inglês Revista: Int. j. morphol Assunto da revista: Anatomia Ano de publicação: 2020 Tipo de documento: Artigo País de afiliação: China Instituição/País de afiliação: Shanxi Normal University/CN