| Autor: |
Zama U; Department of Cellular Biology, Institute of Biological Sciences, University of Brasilia, DF, Brazil. uyrazama@gmail.com, Brito P, Lino-Neto J, Campos LA, Doldero H, Báo SN |
| Jazyk: |
angličtina |
| Zdroj: |
Journal of submicroscopic cytology and pathology [J Submicrosc Cytol Pathol] 2005 Nov; Vol. 37 (3-4), pp. 313-21. |
| Abstrakt: |
The morphology of spermatozoon of Sceliphron fistularium is very similar to that described for bees. In particular, the response to E-PTA stains is similar to that observed in corbiculated Apidae, especially Meliponini bees. Spermatozoa measure 285 microm and are composed of 1) a bilayered acrosome (acrosomal vesicle and perforatorium); 2) a homogeneous and compact nucleus; 3) a 9+9+2 axoneme; 4) a rod-shaped centriolar adjunct; 5) two asymmetrical mitochondrial derivatives with paracrystalline material exclusively in the larger one, and 6) two accessory bodies. Only the accessory microtubules of axoneme and the paracrystalline material are E-PTA positive. Comparison of S. fistularium sperm to data on Hymenoptera corroborates their proximity with bees. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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