Electron Microscopic Observations on Mitochondria of Rat Testes Fixed in Potassium Permanganate

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Abstract
A morphological investigation of mitochondria within the seminal epithelial cells of rat testes fixed in potassium permanganate reveals differences in electron opacity between the internal mitochondrial membranes of spermatogenic cells and those of Sertoli cells. Some interpretations of the apparent density differences are briefly discussed. It is concluded that the different effects of permanganate fixation upon the mitochondria of these cell types may reflect a significant structural difference between them.