Sperm morphology of two marine neogastropods from the southwestern atlantic ocean (Caenogastropoda: Volutidae and Olividae)

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 am...

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Autores principales: Giménez, J., Arrighetti, F., Teso, V., Hermida, G.N., Zabala, S., Penchaszadeh, P.E.
Formato: JOUR
Materias:
Gastropoda
Neaogastropoda
Sperm
Ultrastructure
Adelomelon
Caenogastropoda
Neogastropoda
Olivancillaria
Olividae
Volutidae
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00281344_v123_n3_p166_Gimenez
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00281344_v123_n3_p166_Gimenez
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spelling todo:paper_00281344_v123_n3_p166_Gimenez2023-10-03T14:38:44Z Sperm morphology of two marine neogastropods from the southwestern atlantic ocean (Caenogastropoda: Volutidae and Olividae) Giménez, J. Arrighetti, F. Teso, V. Hermida, G.N. Zabala, S. Penchaszadeh, P.E. Gastropoda Neaogastropoda Sperm Ultrastructure Adelomelon Caenogastropoda Gastropoda Neogastropoda Olivancillaria Olividae Volutidae 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00281344_v123_n3_p166_Gimenez
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Gastropoda
Neaogastropoda
Sperm
Ultrastructure
Adelomelon
Caenogastropoda
Gastropoda
Neogastropoda
Olivancillaria
Olividae
Volutidae
spellingShingle Gastropoda
Neaogastropoda
Sperm
Ultrastructure
Adelomelon
Caenogastropoda
Gastropoda
Neogastropoda
Olivancillaria
Olividae
Volutidae
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)
topic_facet Gastropoda
Neaogastropoda
Sperm
Ultrastructure
Adelomelon
Caenogastropoda
Gastropoda
Neogastropoda
Olivancillaria
Olividae
Volutidae
description 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.
format JOUR
author Giménez, J.
Arrighetti, F.
Teso, V.
Hermida, G.N.
Zabala, S.
Penchaszadeh, P.E.
author_facet Giménez, J.
Arrighetti, F.
Teso, V.
Hermida, G.N.
Zabala, S.
Penchaszadeh, P.E.
author_sort Giménez, J.
title Sperm morphology of two marine neogastropods from the southwestern atlantic ocean (Caenogastropoda: Volutidae and Olividae)
title_short Sperm morphology of two marine neogastropods from the southwestern atlantic ocean (Caenogastropoda: Volutidae and Olividae)
title_full Sperm morphology of two marine neogastropods from the southwestern atlantic ocean (Caenogastropoda: Volutidae and Olividae)
title_fullStr Sperm morphology of two marine neogastropods from the southwestern atlantic ocean (Caenogastropoda: Volutidae and Olividae)
title_full_unstemmed Sperm morphology of two marine neogastropods from the southwestern atlantic ocean (Caenogastropoda: Volutidae and Olividae)
title_sort sperm morphology of two marine neogastropods from the southwestern atlantic ocean (caenogastropoda: volutidae and olividae)
url http://hdl.handle.net/20.500.12110/paper_00281344_v123_n3_p166_Gimenez
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AT arrighettif spermmorphologyoftwomarineneogastropodsfromthesouthwesternatlanticoceancaenogastropodavolutidaeandolividae
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AT hermidagn spermmorphologyoftwomarineneogastropodsfromthesouthwesternatlanticoceancaenogastropodavolutidaeandolividae
AT zabalas spermmorphologyoftwomarineneogastropodsfromthesouthwesternatlanticoceancaenogastropodavolutidaeandolividae
AT penchaszadehpe spermmorphologyoftwomarineneogastropodsfromthesouthwesternatlanticoceancaenogastropodavolutidaeandolividae
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