| Full text | |
| Author(s): |
Terossi, Mariana
[1]
;
Tudge, Christopher
[2, 3]
;
Lopez Greco, Laura S.
[4]
;
Mantelatto, Fernando L.
[1]
Total Authors: 4
|
| Affiliation: | [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
Total Affiliations: 4
|
| Document type: | Journal article |
| Source: | INVERTEBRATE REPRODUCTION & DEVELOPMENT; v. 56, n. 4, p. 299-304, DEC 2012. |
| Web of Science Citations: | 7 |
| 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. (AU) | |
| FAPESP's process: | 10/50188-8 - Decapod crustaceans: multi-disciplinary characterization of the sea biodiversity of the State of São Paulo (taxonomy, spermiotaxonomy, molecular biology and population dynamics) |
| Grantee: | Fernando Luis Medina Mantelatto |
| Support Opportunities: | BIOTA-FAPESP Program - Thematic Grants |