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KMID : 0381919990290040427
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Korean Journal of Microscopy
1999 Volume.29 No. 4 p.427 ~ p.435
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Ultrastructural Study on the Spermatogenesis of the Marbled Sole, Limanda yokohamae (Teleostei: Pleuronectidae)
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An Cheul-Min
Lee Jung-Sick
Huh Sung-Hoi
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Abstract
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Spermatogenesis and fine structure of the spermatozoon of the marbled sole, Limanda yokohamae were examined by means of the scanning and transmission electron microscopy. The process of spermatogenesis of the marbled tole is similar to that of other teleost with external fertilization. During the spermiogenesis, chromatin that has been became fine]y granular progressively condenses into many large globules and that homogeneously condensed in the spermatozoan head. A spermatozoon consists of head and tail, and the acrosome is absent. The cytoplasmic collar contained eight mitochondria is observed in the posterior part of the head. The well -developed axonemal lateral fins are observed in the tail. In the TEM observation, the cross section of the axial filament shows ’’9+2’’ axonemal structure of microtubules, and the numerous vesicles are observed in the cytoplasm.
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KEYWORD
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Limanda yokohamae, Spermatozoon, Ultrastructure
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