AFLAGELLATED SPERMATOZOA OF HUHENTOMON AND ACERELLA (PROTURA, APTERYGOTA)
The spermatozoa of Huhentomon plicatunguis (Protura : Hesperentomidae) and Acerella tiarnea (Protura : Acerellidae) are aflagellate and of simple structure. An ovoidal nucleus with condensed chromatin is located at the end of the cell; the cytoplasm is devoid of organelles, except for mitochondria,...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
1990
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| Summary: | The spermatozoa of Huhentomon plicatunguis (Protura : Hesperentomidae) and Acerella tiarnea (Protura : Acerellidae) are aflagellate and of simple structure. An ovoidal nucleus with condensed chromatin is located at the end of the cell; the cytoplasm is devoid of organelles, except for mitochondria, and contains compact material derived from centriolar adjunct-like material. Centriole and mitochondrial cristae degenerate during spermiogenesis. These results show that the evolutionary trends of proturan spermatozoa tend towards aflagellate state. © 1990. |
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