The Korean Journal of Malacology (한국패류학회지)

The Malacological Society of Korea (한국패류학회)
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Gill Ultrastructure of the Spiny Top Shell, Batillus cornutus (Gastropoda: Turbinidae)

소라, Batillus cornutus 아가미의 미세구조

  • Jung, Gui-Kwon (Jeollanamdo Gangjin Office of Education) ;
  • Park, Jung-Jun (Pathology Division, Aquaculture Research Institute, NFRDI) ;
  • Ju, Sun-Mi (Department of Aqualife Medicine, Chonnam National University) ;
  • Jeon, Mi-Ae (Department of Aqualife Medicine, Chonnam National University) ;
  • Lee, Jung-Sick (Department of Aqualife Medicine, Chonnam National University)
  • 정귀권 (전라남도 강진교육지원청) ;
  • 박정준 (국립수산과학원 병리연구과) ;
  • 주선미 (전남대학교 수산생명의학과) ;
  • 전미애 (전남대학교 수산생명의학과) ;
  • 이정식 (전남대학교 수산생명의학과)
  • Received : 2011.02.03
  • Accepted : 2011.03.09
  • Published : 2011.03.31
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Abstract

Gill morphology and ultrastructure of the spiny top shell, Batillus cornutus were described using light and electron microscopy (SEM and TEM). The spiny top shell, Batillus cornutus has bipectinate gill. The epithelial layer of gill filament was simple and composed of columnar epithelium, ciliated cell, mitochondria-rich cell and secretory cell. Microvilli were well-developed on the free surface of columnar epithelial cell. The epithelial cells are connected to the neighboring cells with intercelluar junctions at the apico-lateral surface. The cilia and microvilli were commonly observed on the free surface of ciliated cell. Tubular mitochondria appeared in the apical cytoplasm, and connected ciliary rootlet. Mitochondria-rich cells contained a oval-shaped nucleus in the basal area. And majority of cytoplasm was occupied by well-developed mitochondria. Result of AB-PAS (pH 2.5) and AF-AB reaction showed that secretory cells contained mainly acidic carboxylated mucosubstances. Secretory cells are unicellular glands and can be divided into four types (A, B, C and D) depending on the cell shape and ultrastructure of secretory granules.

광학 및 전자현미경을 이용하여 소라 아가미의 형태와 미세구조를 기재하였다. 소라의 아가미는 bipectinate형이다. 새엽 상피층은 단층으로 상피세포, 섬모세포, mitochondria-rich cell 그리고 분비세포로 구성되어 있었다. 상피세포들은 원주형이며, 자유면에는 미세융모들이 발달되어 있었고 인접한 세포들과는 상부측면에 세포연접들로 연결되어 있었다. 섬모세포들은 자유면에 섬모와 미세융모들을 가지며, 세포질에는 잘 발달된 미토콘드리아들이 무리지어 존재하고 섬모의 기저 뿌리 끝이 연결되어 있었다. Mitochondria-rich cell은 기저부에 원형의 핵을 가지며, 세포질의 대부분은 발달된 미토콘드리아들이 차지하고 있었다. AB-PAS와 AF-AB 반응 결과, 분비 세포들은 주로 산성점액을 함유하고 있었다. 분비세포는 단세포선으로 세포의 형태와 분비과립의 미세구조적 특징에 따라 4 종류 (A, B, C, D)로 구분할 수 있었다.

Keywords

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