Ultrastructural Observations on the Germ Plasm in the Lizard Podarcis sicula |
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| Authors: | Piero Andreuccetti |
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| Institution: | Department of Evolutive and Comparative Biology, Faculty of Science, University of Naples, Italy. |
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| Abstract: | Ultrastructural studies on embryos and adult females of Podarcis sicula revealed fibrogranular electron-dense aggregates in the cytoplasm of primordial germ cells, oogonia, and oocytes. The ultrastructural similarities of these aggregates to fibrogranular aggregates in germ cells of some animal species and their relationship with mitochondria, free ribosomes, as well as cisternae of the rough endoplasmic reticulum strongly suggest that they correspond to the germ plasm. |
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