|
KMID : 0381920110410030189
|
|
Korean Journal of Microscopy
2011 Volume.41 No. 3 p.189 ~ p.196
|
|
|
Structure of Egg Envelope and Oogenesis of Kichulchoia multifasciata (Pisces, Cobitidae)
|
|
Kim Chi-Hong
Kim Jae-Goo
Park Jong-Young
|
|
|
Abstract
|
|
|
|
Histological study on egg envelope and oogenesis of Kichulchoia multifasciata (Pisces, Cobitidae) was carried out by light microscopes and scanning electron microscopes. Various developmental cells appeared in ovary of the specimen catched during November 2010. The cytoplasm of oogonia was acidic and many nucleoli were located at the inner side of nucleus membrane. The size of the oogonia was 103.9±24.7 μm with nucleus size 42.9±6.9 (31.1~50.3) μm. Primary oocyte having 277.5±60.5 (216.7~354.9) μm in diameter began to accumulate yolk vesicles. As the developmental stages proceed, secondary oocyte grows larger to 617.6±85.1 (503.4~723.6) μm, and eosinophilic yolk granules yolk granules appeared between the yolk vesicles occupying most cytoplasm, and there are some yolk mass formed already. There are some yolk mass formed already. Envelope of fertilized egg investigated by a scanning electron microscope had plenty of microvilli (2~3 μm in length) over the entire egg surface and a micropyle. Especially, the microvilli surrounding the micropyle were longer than those of egg surface with 5.26±1.224 μm.
|
|
|
KEYWORD
|
|
|
Kichulchoia multifasciata, Oogenesis, Micropyle, Egg envelope, Microvilli
|
|
|
FullTexts / Linksout information
|
|
|
|
|
Listed journal information
|
|
|