Title: Fine structural changes in liver cells of Rana catesbeiana during natural metamorphosis
Abstract: During natural metamorphosis of Rana catesbeiana there are significant cytological alterations in the liver cells. These changes provide cytological criteria for differentiation of parenchymal cells during metamorphosis. The nuclei of the parenchymal cells are euchromatic in early metamorphic stages and become heterochromatic about the time of forelimb development and remain so. They become more irregular in shape, and the number of nucleoli increases. The mitochondria increase in size, and their cristae change from a broad lamellar to a smaller, more tubular appearance during the period from hindlimb development through metamorphic climax. The rough endoplasmic reticulum proliferates through the cytoplasm and the cisternae become dilated during this period. The Golgi complex is associated with dense granules during early stages of metamorphosis, appears less active during metamorphic climax, and returns to a more active appearance in froglet and adult animals. These changes are interpreted in relation to the biochemical alterations that occur during metamorphosis.
Publication Year: 1970
Publication Date: 1970-07-01
Language: en
Type: article
Indexed In: ['crossref', 'pubmed']
Access and Citation
Cited By Count: 30
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