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Ultrastructure of Sorubim lima (Teleostei, Siluriformes, Pimelodidae) spermiogenesis
(2000-10-01)
The spermiogenesis and the spermatozoon ultrastructure of Sorubim lima were studied. Our observations showed that early spermatids are round-shaped cells, have spherical nucleus with diffuse chromatin, small quantity of ...
Ultrastructure of Sorubim lima (Teleostei, Siluriformes, Pimelodidae) spermiogenesis
(2000-10-01)
The spermiogenesis and the spermatozoon ultrastructure of Sorubim lima were studied. Our observations showed that early spermatids are round-shaped cells, have spherical nucleus with diffuse chromatin, small quantity of ...
An azoospermic man with a double-strand DNA break-processing deficiency in the spermatocyte nuclei: Case report
(Oxford University Press, 2006-05)
BACKGROUND: The mechanisms of meiotic arrest in human spermatogenesis are poorly known. METHODS AND RESULTS: A testicular biopsy from an azoospermic male showed complete spermatogenesis arrest at the spermatocyte stage, ...
Actin levels fluctuate in the seminiferous epithelium at various stages during spermatogenesis in the rat
(Instituto de Histología y Embriología de Mendoza "Dr. Mario H. Burgos", 2017-12)
The testis is a double gland comprised of the sperm-producing seminiferous tubules and a complex endocrine interstice. The former structures generate and release whole cells (exocrine aspect of the gland) while the latter ...
Sperm morphology of the neotropical harvestman Iporangaia pustulosa (Arachnida : Opiliones): Comparative morphology and functional aspects
(Elsevier Sci LtdOxfordInglaterra, 2007)
Analysis of the nucleolar cycle in the seminiferous epithelium of rodents
(2007-12-28)
The nucleolus is a subcompartment of the nucleus and the site of ribosome biogenesis. During the mitotic and meiotic cell cycles, a disorganization and later reorganization of the nucleolar material occur, an event called ...
Analysis of the nucleolar cycle in the seminiferous epithelium of rodents
(2007-12-28)
The nucleolus is a subcompartment of the nucleus and the site of ribosome biogenesis. During the mitotic and meiotic cell cycles, a disorganization and later reorganization of the nucleolar material occur, an event called ...
Expression and behaviour of CENP-E at kinetochores during mouse spermatogenesis
(2002)
Centromere protein E (CENP-E) is a microtubule motor protein localised in the outer kinetochore plate and in the fibrous corona that relocalises to the midzone in early anaphase. While its expression in somatic cells has ...