| Autor: |
REUNOV, ARKADIJ |
| Zdroj: |
Invertebrate Reproduction & Development; December 1993, Vol. 24 Issue: 3 p213-215, 3p |
| Abstrakt: |
The spermiogenesis of the brachiopod Rhynchonella psittacea was studied. The acrosome develops from cup-shaped acrosomal vesicles near the Golgi complex in the basal part of the spermatid. The acrosome vesicle then migrates to the apical region of the cell. The periacrosomal substance appears between the acrosomal vesicle and the nucleus. A ring-shaped mitochondrion is localized around the basal part of the nucleus. During spermiogenesis the proximal centriole is in contact with the nucleus via a single pericentriolar element. A distal centriole of the late spermatid has nine elements in a pericentriolar complex. The tail flagellum has a normal axonemal complex (9 + 2). |
| Databáze: |
Supplemental Index |
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