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Abstract:

The aim of this study was to describe and illustrate the morphology of the spermatozoon of the Western Atlantic shrimp, Hippolyte obliquimanus. Individuals were sampled from Itagua Beach (Ubatuba, southern Brazil). The male reproductive system was dissected and morphological analysis was undertaken using a stereomicroscope, a light microscope, and transmission electron and scanning electron microscopes. When viewed from the nuclear or acrosomal poles, each spermatozoon has many translucent radiating arms (about 20) from a denser cell body, while laterally the cell body and arms resemble a ''cnidarian medusa'', with all the arms projecting away from the bell-like cell body. This sperm morphology is distinct from the ''thumbtack''-shaped spermatozoa observed in the majority of carideans but has similarities to the spermatozoa of Rhynchocinetes spp. The morphology of sperm of several species of the genus Hippolyte resembles the spermatozoon of H. obliquimanus with the presence of posterior nuclear arms, but it is necessary to study other Hippolyte species to place these arms in the context of the genus. © 2012 Taylor & Francis.

Registro:

Documento: Artículo
Título:A novel spermatozoan ultrastructure in the shrimp Hippolyte obliquimanus Dana, 1852 (Decapoda: Caridea: Hippolytidae)
Autor:Terossi, M.; Tudge, C.; Lopez Greco, L.S.; Mantelatto, F.L.
Filiación:Postgraduate Program in Comparative Biology, Laboratory of Bioecology and Crustacean Systematics, Department of Biology, Faculty of Philosophy, Sciences and Letters of Ribeirao Preto (FFCLRP), University of Sao Paulo (USP), Av. Bandeirantes - 3900, CEP 14040-901, Ribeirao Preto (SP), Brazil
Department of Biology, American University, Washington, DC 20016-8007, United States
Department of Invertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20013-7012, United States
Biology of Reproduction and Growth in Crustaceans, Department of Biodiversity and Experimental Biology, University of Buenos Aires, Ciudad Universitaria, Pabellon II, C1428EGA Buenos Aires, Argentina
Palabras clave:Acrosomal spike; Morphology; Nuclear arms; Spermatozoa; Caridea; Cnidaria; Decapoda (Crustacea); Hippolyte obliquimanus; Hippolytidae; Rhynchocinetes
Año:2012
Volumen:56
Número:4
Página de inicio:299
Página de fin:304
DOI: http://dx.doi.org/07924259.2011.631040
Título revista:Invertebrate Reproduction and Development
Título revista abreviado:Invertebr. Reprod. Dev.
ISSN:07924259
CODEN:IRDEE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07924259_v56_n4_p299_Terossi

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Citas:

---------- APA ----------
Terossi, M., Tudge, C., Lopez Greco, L.S. & Mantelatto, F.L. (2012) . A novel spermatozoan ultrastructure in the shrimp Hippolyte obliquimanus Dana, 1852 (Decapoda: Caridea: Hippolytidae). Invertebrate Reproduction and Development, 56(4), 299-304.
http://dx.doi.org/07924259.2011.631040
---------- CHICAGO ----------
Terossi, M., Tudge, C., Lopez Greco, L.S., Mantelatto, F.L. "A novel spermatozoan ultrastructure in the shrimp Hippolyte obliquimanus Dana, 1852 (Decapoda: Caridea: Hippolytidae)" . Invertebrate Reproduction and Development 56, no. 4 (2012) : 299-304.
http://dx.doi.org/07924259.2011.631040
---------- MLA ----------
Terossi, M., Tudge, C., Lopez Greco, L.S., Mantelatto, F.L. "A novel spermatozoan ultrastructure in the shrimp Hippolyte obliquimanus Dana, 1852 (Decapoda: Caridea: Hippolytidae)" . Invertebrate Reproduction and Development, vol. 56, no. 4, 2012, pp. 299-304.
http://dx.doi.org/07924259.2011.631040
---------- VANCOUVER ----------
Terossi, M., Tudge, C., Lopez Greco, L.S., Mantelatto, F.L. A novel spermatozoan ultrastructure in the shrimp Hippolyte obliquimanus Dana, 1852 (Decapoda: Caridea: Hippolytidae). Invertebr. Reprod. Dev. 2012;56(4):299-304.
http://dx.doi.org/07924259.2011.631040