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KMID : 0381920000300040321
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Korean Journal of Microscopy
2000 Volume.30 No. 4 p.321 ~ p.326
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Ultrastructure of the Fertilized Egg Envelope from Pale Chub, Cyprinidae, Teleost
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Teng Yung-Chien
Kim Dong-Heui
Reu Dong-Suck
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Abstract
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The ultrastructure of the fertilized egg envelope from pale chub , Zacco platypus belong to Cyprinidae was studied using scanning and transmission electron microscopes. The fertilized egg was an adhesive type, have a single micropyle resembling the pathway of sperm in the area of the animal pole. The micropyle was surrounded by 5 peaks of hill. An outer surface of the fertilized egg envelope was arranged by pore canals irregularly. In section of fertilized egg, the egg envelope consistes of three layers, an outer adhesive layer, a middle electron dense layer and an inner lamellae layer consisting of 9 layers. These ultrastructural characters of fertilized egg envelope from pale chub can be utilized in taxonomy of teleost.
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KEYWORD
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Fish, Fertilized egg envelope, Pale chub, Ultrastructure
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