Sperm morphology of two species of Olivancillaria (Gastropoda: Olividae) from the south-western Atlantic

Sperm ultrastructure in two species of the marine snail family Olividae is examined. Euspermatozoa of both species are composed of a conical, membrane-bound acrosomal vesicle; an axial rod and a basal plate similar in both species; a solid and highly electron-dense nucleus; an elongate midpiece cons...

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Detalles Bibliográficos
Autores principales:	Teso, V., Giménez, J.
Formato:	JOUR
Materias:	Argentina Olivancillaria carcellesi Olivancillaria deshayesiana sperm ultrastructure marine ecosystem morphology snag sperm ultrastructure Atlantic Ocean Atlantic Ocean (Southwest) Gastropoda Neogastropoda Olivancillaria Olividae
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00253154_v93_n3_p825_Teso
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_00253154_v93_n3_p825_Teso
record_format	dspace
spelling	todo:paper_00253154_v93_n3_p825_Teso2023-10-03T14:35:46Z Sperm morphology of two species of Olivancillaria (Gastropoda: Olividae) from the south-western Atlantic Teso, V. Giménez, J. Argentina Olivancillaria carcellesi Olivancillaria deshayesiana sperm ultrastructure marine ecosystem morphology snag sperm ultrastructure Argentina Atlantic Ocean Atlantic Ocean (Southwest) Gastropoda Neogastropoda Olivancillaria Olividae Sperm ultrastructure in two species of the marine snail family Olividae is examined. Euspermatozoa of both species are composed of a conical, membrane-bound acrosomal vesicle; an axial rod and a basal plate similar in both species; a solid and highly electron-dense nucleus; an elongate midpiece consisting of the axoneme sheathed by helical mitochondrial elements; an elongate glycogen piece; a double electron-dense ring at the junction of the midpiece and glycogen piece; and a free tail region. The slight narrowing in the acrosomal vesicle invagination is situated in different levels between Olivancillaria deshayesiana and Olivancillaria carcellesi. This morphology could be considered as a specific character. The length of the nucleus in O. carcellesi and in O. deshayesiana is shorter than that of other neogastropods, and could be diagnostic at family level. © 2012 Marine Biological Association of the United Kingdom. Fil:Teso, V. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00253154_v93_n3_p825_Teso
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Argentina Olivancillaria carcellesi Olivancillaria deshayesiana sperm ultrastructure marine ecosystem morphology snag sperm ultrastructure Argentina Atlantic Ocean Atlantic Ocean (Southwest) Gastropoda Neogastropoda Olivancillaria Olividae
spellingShingle	Argentina Olivancillaria carcellesi Olivancillaria deshayesiana sperm ultrastructure marine ecosystem morphology snag sperm ultrastructure Argentina Atlantic Ocean Atlantic Ocean (Southwest) Gastropoda Neogastropoda Olivancillaria Olividae Teso, V. Giménez, J. Sperm morphology of two species of Olivancillaria (Gastropoda: Olividae) from the south-western Atlantic
topic_facet	Argentina Olivancillaria carcellesi Olivancillaria deshayesiana sperm ultrastructure marine ecosystem morphology snag sperm ultrastructure Argentina Atlantic Ocean Atlantic Ocean (Southwest) Gastropoda Neogastropoda Olivancillaria Olividae
description	Sperm ultrastructure in two species of the marine snail family Olividae is examined. Euspermatozoa of both species are composed of a conical, membrane-bound acrosomal vesicle; an axial rod and a basal plate similar in both species; a solid and highly electron-dense nucleus; an elongate midpiece consisting of the axoneme sheathed by helical mitochondrial elements; an elongate glycogen piece; a double electron-dense ring at the junction of the midpiece and glycogen piece; and a free tail region. The slight narrowing in the acrosomal vesicle invagination is situated in different levels between Olivancillaria deshayesiana and Olivancillaria carcellesi. This morphology could be considered as a specific character. The length of the nucleus in O. carcellesi and in O. deshayesiana is shorter than that of other neogastropods, and could be diagnostic at family level. © 2012 Marine Biological Association of the United Kingdom.
format	JOUR
author	Teso, V. Giménez, J.
author_facet	Teso, V. Giménez, J.
author_sort	Teso, V.
title	Sperm morphology of two species of Olivancillaria (Gastropoda: Olividae) from the south-western Atlantic
title_short	Sperm morphology of two species of Olivancillaria (Gastropoda: Olividae) from the south-western Atlantic
title_full	Sperm morphology of two species of Olivancillaria (Gastropoda: Olividae) from the south-western Atlantic
title_fullStr	Sperm morphology of two species of Olivancillaria (Gastropoda: Olividae) from the south-western Atlantic
title_full_unstemmed	Sperm morphology of two species of Olivancillaria (Gastropoda: Olividae) from the south-western Atlantic
title_sort	sperm morphology of two species of olivancillaria (gastropoda: olividae) from the south-western atlantic
url	http://hdl.handle.net/20.500.12110/paper_00253154_v93_n3_p825_Teso
work_keys_str_mv	AT tesov spermmorphologyoftwospeciesofolivancillariagastropodaolividaefromthesouthwesternatlantic AT gimenezj spermmorphologyoftwospeciesofolivancillariagastropodaolividaefromthesouthwesternatlantic
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Sperm morphology of two species of Olivancillaria (Gastropoda: Olividae) from the south-western Atlantic

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