돌돔 (Oplegnathus fasciatus) 아가미의 미세구조
Ultrastructure of the Gill of the Parrot fish, Oplegnathus fasciatus
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초록
돌돔의 아가미의 미세구조를 광학현미경과 투과전자현미경을 이용하여 관찰하였다. 아가미는 새궁 앞,뒤 2열로 된 빗모양의 많은수의 새엽과 그리고 각 새엽은 전후 두개의 새판 (gill lamellae)이 근접하여 두열로 배열되어 있다. 상피세포층은 단층으로 큰 핵을 가진 편평상피로 구성되고 표면에는 미세융기가 잘 발달되어 있다. 새판의 기둥구조는 세로 방향의 미세소관들과 측면 membrane interdigitation을 가지며, 염세포는 수많은 미토콘드리아와 tubular system이 잘 발달되어 있다. 미성숙된 점액세포는 조면세포체와 골지체가 잘 발달되었으며 일부 발달된 점액과립을 가지고 있다. 성숙한 점액세포는 AB-PAS에 푸른색을 띄었으며 구형이고 다양한 전자밀도를 가진 거의 같은 크기의 점액과립을 가지고 있다.
Abstract
Ultrastructural of the gill in Oplegnathus fasciatus were examined by means of the light and transmission electron microscopes. The gill have primary filament and secondary filament (lamellae). The following cells are identified and described : Epithelial cell, pillar cell, chloride cell and mucose cell.Simple epithelial layer consists of squamous epithelium contained large nucleus and the surface is covered with some of microridges. The lamella pillar structures are characterized by the axial microtubules and lateral membrane interdigitations. Chloride cells contain a lot of mitochondria and specifically developed tubular systems. The rough endoplasimic reticulum and golgi complex, and some of mucous granules were observed in immature mucous cells. The mature mucous cells were AB-PAS positive and globular in shape, and had almost the mucous granules of same size with various electron density.
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