spermiogenesis


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Related to spermiogenesis: spermiation, Spermatocytogenesis

spermiogenesis

[‚spər·mē·ō′jen·ə·səs]
(cell and molecular biology)
Nuclear and cytoplasmic transformation of spermatids into spermatozoa.
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However, investigations of the acrosome reaction and spermiogenesis in these species are few.
Males undergoing spermiogenesis were collected from June through October, with regressed testes present in specimens collected from March through May and testes in recrudescence (recovery) present in specimens collected from March through June (Table 1).
The observation of 44% of May males undergoing spermiogenesis may suggest that spermiogenesis occurs primarily in the spring in C.
catenifer (Goldberg and Parker 1975) in which testes are regressed in spring with spermiogenesis occurring later in the year.
At this point it appears that prolonged periods of spermiogenesis may be typical for Central American snakes.
On spermiogenesis, morphology of the spermatozoan, and biology of fertilization among invertebrates.
During spermiogenesis the seminiferous tubules are lined by clusters of spermatozoa and metamorphosing spermatids and the epididymides are packed with sperm.
Meroles suborbitalis male versus female mean body sizes as well as body sizes of males with testes in recrudescence versus males with testes in spermiogenesis were compared using an unpaired t test.
Spermiogenesis and ultrastructure of spermatozoa in Saxipendium coronatum (Hemichordata, Enteropneusta), with consideration of their relation to reproduction and dispersal.
The antheridial filaments are shown at the end of the spermiogenesis.