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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
 
Creator Rao,A Chandrasekhara
Krishnan,L
Sanil,N K
 
Subject Gonad maturation
Hepatocyte
Nucleolus
Oocyte
Ultrastructure
Zonation of yolk
 
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
 
Date 2021-09-17T04:37:25Z
2021-09-17T04:37:25Z
2014
 
Type Article
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/63635
 
Language English
 
Relation Not Available