붉은쏨뱅이 (Sebastiscus tertius) 피부계의 미세구조 및 조직화학적 특징
Ultrastructure and Histochemistry on the Integumentary System of the Rockfish, Sebastiscus tertius (Teleostei: Scorpaenidae)
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붉은쏨뱅이의 피부 상피층은 다층상피층으로 지지세포, 선세포, 과립세포 그리고 mitochodria-rich cell들로 구성된다. 상피층은 지지세포의 형태와 구조에 따라 표면층, 중간층 및 기저층으로 구분할 수 있다. 점액세포들은 단세포선으로 상피의 표면층과 중간층에 분포하며, 산성의 비황화 뮤코다당류로 구성된 점액을 가진다. 곤봉상세포는 세포질에 잘 발달된 중심공포, 조면소포체 및 골지체를 가진다. 과립세포는 표면층에 존재하며, 전자밀도가 높은 과립을 가진다. mitochodria-rich cell의 주변부 세포질에는 미세섬유 다발이 발달되어 있으며, 수질부에는 다수의 관상 미토콘드리아를 가진다. 색소세포는 세포질에 존재하는 함유물의 전자밀도에 따라 세 종류로 구분할 수 있다.
Abstract
Integumentary structures of the rockfish, Sebastiscus tertius were examined by means of the light and transmission electron microscopy. Stratified epidermal layer consists of supporting cells, unicellular glands, granular cells and mitochondria-rich cells. The epidermal layer could be classified into superficial, intermediated and basal layer by morphology and structure of the supporting cells. Mucous cells of unicellular gland were observed in the superficial and intermediated layer of the epidermis. The mucous materials were identified as acidic and carboxylated mucosubstance by histochemical methods. Club cell has well-developed central vacuole, rough endoplasmic reticula and Golgi complex in the cytoplasm. Granular cells were observed in the superficial layer and contained numerous granules of high electron density. Mitochondria-rich cells are characterized by well-developed microfilaments in cortex and numerous tubular mitochondria in medullar cytoplasm. Three types of pigment cells in the dermal layer could be distinguished with electron density of cytoplasmic inclusions.
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