A novel spermatozoan ultrastructure in the shrimp Hippolyte obliquimanus Dana, 1852 (Decapoda: Caridea: Hippolytidae)

Autor(es)

Terossi, Mariana ^[1] ; Tudge, Christopher ^{[2, 3]} ; Lopez Greco, Laura S. ^[4] ; Mantelatto, Fernando L. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Fac Philosophy Sci & Letters Ribeirao Preto FFCLR, Dept Biol, Postgrad Program Comparat Biol, Lab Bioecol & Crus, BR-14040901 Ribeirao Preto, SP - Brazil

^[2] American Univ, Dept Biol, Washington, DC 20016 - USA

^[3] Smithsonian Inst, Natl Museum Nat Hist, Dept Invertebrate Zool, Washington, DC 20013 - USA

^[4] Univ Buenos Aires, Dept Biodivers & Expt Biol, Buenos Aires, DF - Argentina

• Tipo de documento: Artigo Científico
• Fonte: INVERTEBRATE REPRODUCTION & DEVELOPMENT; v. 56, n. 4, p. 299-304, DEC 2012.
• Citações Web of Science: 7

Resumo

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. (AU)

• Processo FAPESP: 06/61771-0 - Status taxonômico e biológico de duas espécies do gênero Hippolyte Leach, 1814 (Decapoda: Hippolytidae) no Atlântico americano
• Beneficiário: Mariana Terossi Rodrigues Mariano
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 11/11901-3 - Sistemática filogenética dos camarões do gênero Hippolyte (Decapoda: Caridea: Hippolytidae)
• Beneficiário: Mariana Terossi Rodrigues Mariano
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 10/50188-8 - Crustáceos decápodes: multidisciplinaridade na caracterização da biodiversidade marinha do estado de São Paulo (taxonomia, espermiotaxonomia, biologia molecular e dinâmica populacional) (Biodiversidade Marinha)
• Beneficiário: Fernando Luis Medina Mantelatto
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático