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[Structural organization and distribution of the symbiotic bacteria Wolbachia during spermatogenesis of Drosophila simulans].
- Source :
-
Ontogenez [Ontogenez] 2005 Jan-Feb; Vol. 36 (1), pp. 41-50. - Publication Year :
- 2005
-
Abstract
- Electron microscopy and morphometric analysis have shown that the symbiotic bacteria Wolbachia occur the testis cells during spermatogenesis and are absent in mature spermatids. Bacteria did not affect the structural organization of testis cells, which have a typical morphology during morphogenesis. Bacteria were distributed along the meiotic spindle microtubules near the mitochondria. They increased in number in spermatids at the stage of elongation. Endosymbionts aggregated at the spermatid distal end and contained many vacuoles but were absent at the spermatid proximal end near the nuclei. It was shown for the first time that the diameter of spermatids in a strongly infected line was two of three times that in a noninfected line. We hypothesize that the increase in the number of endosymbionts during spermatid elongation can affect the chromatin condensation in the spermatozoon.
- Subjects :
- Animals
Drosophila microbiology
Drosophila physiology
Male
Meiosis
Microscopy, Electron, Transmission
Microtubules ultrastructure
Mitochondria ultrastructure
Spermatogenesis
Spermatozoa microbiology
Symbiosis
Wolbachia physiology
Drosophila ultrastructure
Spermatozoa ultrastructure
Wolbachia ultrastructure
Subjects
Details
- Language :
- Russian
- ISSN :
- 0475-1450
- Volume :
- 36
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Ontogenez
- Publication Type :
- Academic Journal
- Accession number :
- 15807436