Abstract:
The testes of Caenogastropoda typically produce two types of spermatozoa, euspermatozoa and paraspermatozoa. The structures of both morphological forms of sperm contribute to our understanding of reproductive biology, and also have been useful to elucidate taxonomic and phylogenetic relationships among gastropods. This article describes the ultrastructure and the possible importance for systematics of the euspermatozoa in two species, Adelomelon beckii, family Volutidae, and Olivancillaria deshayesiana, family Olividae. The euspermatozoa of these species are characterized by: the presence of an acrosomal vesicle with an apical bleb and accessory membrane; a nucleus that is long and tubular with the axoneme penetrating the nucleus; a midpiece with mitochondrial elements coiled helically around the axoneme; a glycogen piece; and a short end piece. A constriction in the acrosomal vesicle and mitochondrial elements that appear U-shaped and electron dense in cross section are features that are present in the studied taxa, but have not been reported outside of the Neogastropoda.
Registro:
Documento: |
Artículo
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Título: | Sperm morphology of two marine neogastropods from the southwestern atlantic ocean (Caenogastropoda: Volutidae and Olividae) |
Autor: | Giménez, J.; Arrighetti, F.; Teso, V.; Hermida, G.N.; Zabala, S.; Penchaszadeh, P.E. |
Filiación: | CONICET, Laboratorio de Invertebrados, DBBE Facultad de Ciencias Exactas, Naturales Universidad de Buenos Aires, Buenos Aires, Argentina CONICET, Museo Argentino de Ciencias Naturales, Buenos Aires, Argentina Laboratorio de Histología Animal, DBBE Facultad de Ciencias Exactas, Naturales Universidad de Buenos Aires, Buenos Aires, Argentina
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Palabras clave: | Gastropoda; Neaogastropoda; Sperm; Ultrastructure; Adelomelon; Caenogastropoda; Gastropoda; Neogastropoda; Olivancillaria; Olividae; Volutidae |
Año: | 2009
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Volumen: | 123
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Número: | 3
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Página de inicio: | 166
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Página de fin: | 171
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Título revista: | Nautilus
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Título revista abreviado: | Nautilus
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ISSN: | 00281344
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00281344_v123_n3_p166_Gimenez |
Referencias:
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Citas:
---------- APA ----------
Giménez, J., Arrighetti, F., Teso, V., Hermida, G.N., Zabala, S. & Penchaszadeh, P.E.
(2009)
. Sperm morphology of two marine neogastropods from the southwestern atlantic ocean (Caenogastropoda: Volutidae and Olividae). Nautilus, 123(3), 166-171.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00281344_v123_n3_p166_Gimenez [ ]
---------- CHICAGO ----------
Giménez, J., Arrighetti, F., Teso, V., Hermida, G.N., Zabala, S., Penchaszadeh, P.E.
"Sperm morphology of two marine neogastropods from the southwestern atlantic ocean (Caenogastropoda: Volutidae and Olividae)"
. Nautilus 123, no. 3
(2009) : 166-171.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00281344_v123_n3_p166_Gimenez [ ]
---------- MLA ----------
Giménez, J., Arrighetti, F., Teso, V., Hermida, G.N., Zabala, S., Penchaszadeh, P.E.
"Sperm morphology of two marine neogastropods from the southwestern atlantic ocean (Caenogastropoda: Volutidae and Olividae)"
. Nautilus, vol. 123, no. 3, 2009, pp. 166-171.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00281344_v123_n3_p166_Gimenez [ ]
---------- VANCOUVER ----------
Giménez, J., Arrighetti, F., Teso, V., Hermida, G.N., Zabala, S., Penchaszadeh, P.E. Sperm morphology of two marine neogastropods from the southwestern atlantic ocean (Caenogastropoda: Volutidae and Olividae). Nautilus. 2009;123(3):166-171.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00281344_v123_n3_p166_Gimenez [ ]