| Autor: |
Bakhoum Abdoulaye J. S., Quilichini Yann, Justine Jean-Lou, Bray Rodney A., Miquel Jordi, Feliu Carlos, Bâ Cheikh T., Marchand Bernard |
| Jazyk: |
angličtina |
| Rok vydání: |
2015 |
| Předmět: |
|
| Zdroj: |
Parasite, Vol 22, p 26 (2015) |
| Druh dokumentu: |
article |
| ISSN: |
1776-1042 |
| DOI: |
10.1051/parasite/2015026 |
| Popis: |
The ultrastructural organization of the mature spermatozoon of the digenean Atractotrema sigani (from Siganus lineatus off New Caledonia) was investigated by transmission electron microscopy. The male gamete of A. sigani exhibits the general morphology described in digeneans with the presence of two axonemes of different lengths showing the 9 + “1” pattern of the Trepaxonemata, a nucleus, two mitochondria, two bundles of parallel cortical microtubules, external ornamentation, spine-like bodies and granules of glycogen. However, the mature spermatozoon of A. sigani has some specific characters such as the morphology of its anterior region and the submembranous electron-dense material. Although similar structures have been reported in some digenean species, the presence of a submembranous electron-dense material describing a complete ring is reported here for the first time in the mature spermatozoon of A. sigani. In addition, sperm characteristics are compared between the Haploporoidea and their supposed close superfamilies, and possible phylogenetic implications of these findings for the Digenea are discussed. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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