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

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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Detalles Bibliográficos
Autores principales: Arrighetti, Florencia, Giménez, Juliana
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:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1438387X_v64_n2_p143_Arrighetti
http://hdl.handle.net/20.500.12110/paper_1438387X_v64_n2_p143_Arrighetti
Aporte de:
Aportado por : Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires .
id paper:paper_1438387X_v64_n2_p143_Arrighetti
record_format dspace
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (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, Florencia
Giménez, Juliana
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.
author Arrighetti, Florencia
Giménez, Juliana
author_facet Arrighetti, Florencia
Giménez, Juliana
author_sort Arrighetti, Florencia
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 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1438387X_v64_n2_p143_Arrighetti
http://hdl.handle.net/20.500.12110/paper_1438387X_v64_n2_p143_Arrighetti
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AT gimenezjuliana ultrastructureofeuspermatozoaandparaspermatozoainthemarinegastropodadelomelonbeckiicaenogastropodavolutidae
bdutipo_str Repositorios
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