Ultrastructural changes in the oocytes and hepatocytes associated with the maturation of gonads in the protogynous spinycheek grouper Epinephelus diacanthus (Valenciennes)
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Title |
Ultrastructural changes in the oocytes and hepatocytes associated with the maturation of gonads in the protogynous spinycheek grouper Epinephelus diacanthus (Valenciennes) Not Available |
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Creator |
Rao,A Chandrasekhara
Krishnan,L Sanil,N K |
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Subject |
Gonad maturation
Hepatocyte Nucleolus Oocyte Ultrastructure Zonation of yolk |
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Description |
Not Available
Ultrastructural changes in the oocytes and hepatocytes in the female Epinephelus diacanthus were studied with the progress of maturation. Transmission electron microscopic (TEM) observations revealed cytological changes associated with ovarian development. Nucleolus number increased in the perinucleolus stage, which is an indirect indication of increase in protein synthesis with the onset of oogenesis. Zonation of yolk sphere and presence of microvilli in the zona radiata were observed in mature oocytes. In comparison to the immature phase, mature/ripe satge hepatocytes showed greater development of both endoplasmic reticulum and increased density of mitochondria in the cytoplasm which is an evidence of progress in vitellogenin synthesis. Not Available |
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Date |
2021-09-17T04:37:25Z
2021-09-17T04:37:25Z 2014 |
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Type |
Article
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Identifier |
Not Available
Not Available http://krishi.icar.gov.in/jspui/handle/123456789/63635 |
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Language |
English
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Relation |
Not Available
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