Ultrastructure of euspermatozoa and paraspermatozoa in the marine gastropod Adelomelon beckii (Caenogastropoda, Volutidae)

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The sperm morphology of Adelomelon beckii is described by optical and transmission electron microscopy. Both euspermatozoa and paraspermatozoa were found in the specimens studied. Euspermatozoa are filiform and have an elongate nucleus capped by an acrosome. A small basal plate lies between the base...

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Autores principales: Arrighetti, F., Giménez, J.
Formato: Artículo publishedVersion
Publicado: 2010
Materias:
Giant snail
Mollusca
Parasperm
Reproduction
Sperm ultrastructure
gastropod
mitochondrion
phylogenetics
reproductive success
transmission electron microscopy
ultrastructure
Adelomelon
Caenogastropoda
Gastropoda
Volutidae
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_1438387X_v64_n2_p143_Arrighetti
http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_1438387X_v64_n2_p143_Arrighetti_oai
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Repositorio Digital de la Universidad de Buenos Aires (UBA) de Universidad de Buenos Aires
id I28-R145-paper_1438387X_v64_n2_p143_Arrighetti_oai
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spelling I28-R145-paper_1438387X_v64_n2_p143_Arrighetti_oai2020-10-19 Arrighetti, F. Giménez, J. 2010 The sperm morphology of Adelomelon beckii is described by optical and transmission electron microscopy. Both euspermatozoa and paraspermatozoa were found in the specimens studied. Euspermatozoa are filiform and have an elongate nucleus capped by an acrosome. A small basal plate lies between the base of the acrosome and the nucleus. The mid-piece consists of U-shaped mitochondria wrapped helically around the central axoneme. A dense annulus at the junction of the mid-piece and glycogen piece is found, ending in a short end-piece, composed of the axoneme surrounded by a plasma membrane. Two types of paraspermatozoa are found, both vermiform but differing internally with respect to the disposition and number of axonemes, as well as to the types of secretory vesicles. We suggest the use of paraspermatozoa as a systematic character to reveal phylogenetic relationships in this family. © 2009 Springer-Verlag and AWI. Fil:Arrighetti, F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Giménez, J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. application/pdf http://hdl.handle.net/20.500.12110/paper_1438387X_v64_n2_p143_Arrighetti info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar Helgol. Mar. Res. 2010;64(2):143-148 Giant snail Mollusca Parasperm Reproduction Sperm ultrastructure gastropod mitochondrion phylogenetics reproductive success transmission electron microscopy ultrastructure Adelomelon Caenogastropoda Gastropoda Mollusca Volutidae Ultrastructure of euspermatozoa and paraspermatozoa in the marine gastropod Adelomelon beckii (Caenogastropoda, Volutidae) info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_1438387X_v64_n2_p143_Arrighetti_oai
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-145
collection Repositorio Digital de la Universidad de Buenos Aires (UBA)
topic Giant snail
Mollusca
Parasperm
Reproduction
Sperm ultrastructure
gastropod
mitochondrion
phylogenetics
reproductive success
transmission electron microscopy
ultrastructure
Adelomelon
Caenogastropoda
Gastropoda
Mollusca
Volutidae
spellingShingle Giant snail
Mollusca
Parasperm
Reproduction
Sperm ultrastructure
gastropod
mitochondrion
phylogenetics
reproductive success
transmission electron microscopy
ultrastructure
Adelomelon
Caenogastropoda
Gastropoda
Mollusca
Volutidae
Arrighetti, F.
Giménez, J.
Ultrastructure of euspermatozoa and paraspermatozoa in the marine gastropod Adelomelon beckii (Caenogastropoda, Volutidae)
topic_facet Giant snail
Mollusca
Parasperm
Reproduction
Sperm ultrastructure
gastropod
mitochondrion
phylogenetics
reproductive success
transmission electron microscopy
ultrastructure
Adelomelon
Caenogastropoda
Gastropoda
Mollusca
Volutidae
description The sperm morphology of Adelomelon beckii is described by optical and transmission electron microscopy. Both euspermatozoa and paraspermatozoa were found in the specimens studied. Euspermatozoa are filiform and have an elongate nucleus capped by an acrosome. A small basal plate lies between the base of the acrosome and the nucleus. The mid-piece consists of U-shaped mitochondria wrapped helically around the central axoneme. A dense annulus at the junction of the mid-piece and glycogen piece is found, ending in a short end-piece, composed of the axoneme surrounded by a plasma membrane. Two types of paraspermatozoa are found, both vermiform but differing internally with respect to the disposition and number of axonemes, as well as to the types of secretory vesicles. We suggest the use of paraspermatozoa as a systematic character to reveal phylogenetic relationships in this family. © 2009 Springer-Verlag and AWI.
format Artículo
Artículo
publishedVersion
author Arrighetti, F.
Giménez, J.
author_facet Arrighetti, F.
Giménez, J.
author_sort Arrighetti, F.
title Ultrastructure of euspermatozoa and paraspermatozoa in the marine gastropod Adelomelon beckii (Caenogastropoda, Volutidae)
title_short Ultrastructure of euspermatozoa and paraspermatozoa in the marine gastropod Adelomelon beckii (Caenogastropoda, Volutidae)
title_full Ultrastructure of euspermatozoa and paraspermatozoa in the marine gastropod Adelomelon beckii (Caenogastropoda, Volutidae)
title_fullStr Ultrastructure of euspermatozoa and paraspermatozoa in the marine gastropod Adelomelon beckii (Caenogastropoda, Volutidae)
title_full_unstemmed Ultrastructure of euspermatozoa and paraspermatozoa in the marine gastropod Adelomelon beckii (Caenogastropoda, Volutidae)
title_sort ultrastructure of euspermatozoa and paraspermatozoa in the marine gastropod adelomelon beckii (caenogastropoda, volutidae)
publishDate 2010
url http://hdl.handle.net/20.500.12110/paper_1438387X_v64_n2_p143_Arrighetti
http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_1438387X_v64_n2_p143_Arrighetti_oai
work_keys_str_mv AT arrighettif ultrastructureofeuspermatozoaandparaspermatozoainthemarinegastropodadelomelonbeckiicaenogastropodavolutidae
AT gimenezj ultrastructureofeuspermatozoaandparaspermatozoainthemarinegastropodadelomelonbeckiicaenogastropodavolutidae
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