Abstract
EXAMINED by electron microscopy, the central nutrient mass around which spermatogonia up to spermatozoa are attached is seen to be non-nucleated and to contain mitochondria (M, Fig. 1) and various types of nutrient spheres and vacuoles. All spermatic cells are connected to this central mass by bridges (J, Fig. 1) which become much attenuated as the spermatic cells develop. The central nutrient mass is developed in the middle of the spermatogonial syncytium during early growth stages of the spermatocytes, and through these bridges all cells draw upon this store equally for their development into spermatozoa, thus being kept in step.
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References
Chatton, E., and Tuzet, O., C.R. Acad. Sci., Paris, 213 (1941).
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GATENBY, J., DALTON, A. Origin and Connexions of the Central Nutrient Mass in Lumbricus Spermatogenesis. Nature 182, 886–887 (1958). https://doi.org/10.1038/182886a0
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DOI: https://doi.org/10.1038/182886a0
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