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Cytological steps during spermiogenesis in the house sparrow (Passes domesticus, Linnaeus)
(Churchill Livingstone, 2002-08-01)
Spermiogenesis of the domestic sparrow was investigated with the light and electron microscopes and a step by step classification is proposed. Three cell populations corresponding to early, mid and late spermatids were ...
Ultrastructural analysis of the nucleolar aspects at spermiogenesis in triatomines (Heteroptera, Triatominae)
(Pergamon-Elsevier B.V. Ltd, 2010-10-01)
In this study the ultrastructural technique was used to analyze seminiferous tubule cells of the triatomine species Panstrongylus megistus, Rhodnius pallescens and Triatoma infestans. The data obtained provided evidence ...
Targeting and fusion proteins during mammalian spermiogenesis
(Sociedad de Biología de Chile, 2001)
Ultrastructure of spermiogenesis in Plagioscion squamosissimus (Teleostei, Perciformes, Sciaenidae)
(Churchill Livingstone, 1999-12-01)
Spermiogenesis in Plagioscion squamosissimus occurs in cysts. It involves a gradual differentiation process of spermatids that is characterized mainly by chromatin compaction in the nucleus and formation of the flagellum, ...
Ultrastructure of spermiogenesis in Plagioscion squamosissimus (Teleostei, Perciformes, Sciaenidae)
(Churchill Livingstone, 1999-12-01)
Spermiogenesis in Plagioscion squamosissimus occurs in cysts. It involves a gradual differentiation process of spermatids that is characterized mainly by chromatin compaction in the nucleus and formation of the flagellum, ...
Spermatogenesis and Spermiogenesis in Didymocystis wedli Ariola, 1902 (Didymozoidae, Digenea)
(Fundação Oswaldo Cruz. Instituto Oswaldo Cruz, 2020)
Evidence of a procentriole during spermiogenesis in the coccinellid insect Adalia decempunctata (L): An ultrastructural study
(Arthropod Structure & Development, 2018)
Ultrastructure of spermiogenesis in Plagioscion squamosissimus (Teleostei, Perciformes, Sciaenidae)
(Churchill Livingstone, 2014)
Spermiogenesis and spermatozoa ultrastructure in Salminus and Brycon, two primitive genera in Characidae (Teleostei : Ostariophysi : Characiformes)
(Wiley-Blackwell, 2006-10-01)
In Salminus, spermiogenesis is cystic and gives origin to a type I aquasperm. Spermatid differentiation is characterized by chromatin condensed into thick fibres, nuclear rotation, nuclear fossa formation, cytoplasmic ...
Cytological steps during spermiogenesis in the house sparrow (Passes domesticus, Linnaeus)
(Churchill Livingstone, 2002-08-01)
Spermiogenesis of the domestic sparrow was investigated with the light and electron microscopes and a step by step classification is proposed. Three cell populations corresponding to early, mid and late spermatids were ...