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THIN SEA URCHIN [1 record]
Record 1 - internal organization data 2010-04-16
Record 1, English
Record 1, Subject field(s)
- Animal Reproduction
- Biological Sciences
Record 1, Main entry term, English
- acrosomal tubule
1, record 1, English, acrosomal%20tubule
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- acrosomal process 2, record 1, English, acrosomal%20process
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
(...) a thin tube [exuded by the acrosome] that extends to the egg surface and fuses with the egg plasma membrane (...) The tubule thus formed establishes continuity between the egg and the spermatozoon and provides a way for the spermatozoal nucleus to reach the interior of the egg. 1, record 1, English, - acrosomal%20tubule
Record number: 1, Textual support number: 1 CONT
for "acrosomal process" : In invertebrates such as the sea urchin the acrosome simultaneously undergoes a remarkable structural change : it exudes a thin filament called the acrosomal process that attaches itself to the vitelline layer of the egg, a thin membrane underlying the jelly coat. 2, record 1, English, - acrosomal%20tubule
Record number: 1, Textual support number: 2 CONT
for "acrosomal process" : Once the tip of the acrosomal process has interacted with the receptor site, it perforates the vitelline layer and fuses with the underlying plasma membrane of the egg. The plasma membranes of the two cells then become continuous, forming a bridge that progressively enlarges until the entire sperm is surrounded by the egg plasma membrane and is incorporated into the egg. 2, record 1, English, - acrosomal%20tubule
Record 1, French
Record 1, Domaine(s)
- Reproduction des animaux
- Sciences biologiques
Record 1, Main entry term, French
- tube acrosomial 1, record 1, French, tube%20acrosomial
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Chez les invertébrés comme les oursins, la structure de l'acrosome est modifiée au même moment et de façon tout à fait remarquable: l'acrosome sécrète un mince filament appelé tube acrosomial qui s'attache à la membrane sous-jacente à la gangue gélatineuse. (...) Quand l'extrémité du tube acrosomial a réagi avec le site récepteur de l'ovule, elle perfore la membrane vitelline et fusionne avec la membrane plasmique sous-jacente. Les membranes plasmiques des deux cellules sont alors reliées entre elles par un pont qui s'agrandit progressivement jusqu'à ce que la membrane de l'ovule recouvre le spermatozoïde et que celui-ci soit incorporé à l'ovule. 2, record 1, French, - tube%20acrosomial
Record 1, Spanish
Record 1, Textual support, Spanish
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