Mitochondrial derivatives of culex quinquefasciatus (culicidae) spermatozoon : some new aspects evidenced by cytochemistry and image processing
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| Glavni autor: | |
|---|---|
| Datum izdanja: | 1992 |
| Daljnji autori: | , , |
| Format: | Article |
| Jezik: | eng |
| Izvor: | Repositório Institucional da UnB |
| Download full: | http://repositorio.unb.br/handle/10482/19322 |
Sažetak: | Spermatozoa of the mosquito Culex quinquefasciatus have two mitochondrial derivatives of similar size and shape, containing a periodic matrix embedded by an amorphous region and surrounded by a membrane complex. The presence of cytochrome C oxidase activity was shown in the cortical zone. The use of the ethanolic-phosphotungstic acid technique suggests the presence of basic proteins in the paracrystalline structure. The analysis of the paracrystalline structure by digital image processing suggests that the cylindric-like subunits are empty structures and appear connected to each other by thin filaments. This approach showed that longitudinal filaments present an undulation disposition alongside the spermatozoon flagellum. |
Slični predmeti: Mitochondrial derivatives of culex quinquefasciatus (culicidae) spermatozoon : some new aspects evidenced by cytochemistry and image processing
- Cytochemical localization of enzymes in the spermatid and the spermatozoon of Culex quinquefasciatus say (Diptera : Culicidae)
- Distribution of intramembranous particles and filipin-sterol complexes in the spermatid and spermatozoon of Culex quinquefasciatus (Culicidae)
- Ecological aspects of mosquitoes (Diptera: Culicidae) in the gallery forest of Brasilia National Park, Brazil, with an emphasis on potential vectors of yellow fever
- Risco de exposição a vetores da febre amarela silvestre (Diptera: Culicidae) no Parque Nacional de Brasília, Brasil
- Estudo da diversidade urbana e periurbana de mosquitos (Diptera : Culicidae) no Distrito Federal
- Atividade inseticida dos extratos das sementes de tamboril (Enterolobium contortisiliquum (VELL.) MORONG) sobre o Aedes aegypti (Diptera: Culicidae)
