A morphological and cytochemical study of sperm development inHymenolepis diminuta |
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| Authors: | John M. Robinson Burton J. Bogitsh |
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| Affiliation: | (1) Department of Biology, Vanderbilt University, 37235 Nashville, TN, USA;(2) Present address: Department of Pathology, Harvard Medical School, 02115 Boston, MA, USA |
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| Abstract: | Summary Sperm development inHymenolepis diminuta was studied by light and electron microscopy and cytochemical techniques. Spermatogenesis involves a complex series of events in which syncytia are formed. At the light-microscope level, spermatozoa formation was first observed as a  threading out of the peripheral cytoplasm of the 64-nuclear syncytium. Electronmicroscopic studies confirmed and expanded the light-microscopic observations. Cytochemical and morphological observations demonstrated that mature spermatozoa ofHymenolepis diminuta lack mitochondria. Glycogen was present only in mature spermatozoa and only in the form of  -particles. Acid phosphatase was demonstrated in the axoneme of mature spermatozoa. |
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