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- Publisher
- Springer Journals
- Copyright
- Copyright © 2004 by MAIK “Nauka/Interperiodica”
- Subject
- Life Sciences; Freshwater & Marine Ecology
- ISSN
- 1063-0740
- eISSN
- 1608-3377
- DOI
- 10.1023/B:RUMB.0000046554.82986.11
- Publisher site
- See Article on Publisher Site
Abstract
A phenomenon of dimorphism in spermatozoa has been revealed for the sea urchin Strongylocentrotus nudus. The spermatozoa are different in the configuration of the circular mitochondrion. The bulk of male gametes (73.4%) have a symmetrical mitochondrion, whereas the remainder spermatozoa (26.6%) have an asymmetrical one. No other ultrastructural differences in the structure of spermatozoa have been revealed. The two types of spermatozoa are supposed to represent different kinds of normal gametes capable of fertilization.
Journal
Russian Journal of Marine Biology – Springer Journals
Published: Nov 19, 2004