| Texto completo | |
| Autor(es): |
Zara, Fernando Jose
[1]
;
Diogo Reigada, Alvaro Luiz
[1]
;
Domingues Passero, Luiz Felipe
[1]
;
Toyama, Marcos Hikari
[1]
Número total de Autores: 4
|
| Afiliação do(s) autor(es): | [1] Univ Estadual Paulista, UNESP, Unidade Sao Vicente, BR-11330900 Sao Vicente, SP - Brazil
Número total de Afiliações: 1
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Journal of Parasitology; v. 95, n. 1, p. 124-128, FEB 2009. |
| Citações Web of Science: | 3 |
| Resumo | |
Leeches exhibit a marked scope of diversity, including different kinds of symbiosis. The aim of the present study was to demonstrate through biochemical and histological analysis that a species of piscicolid leech, Myzobdella platensis, is a true parasite of blue crabs, feeding on their hemolymph and using them as a site for cocoon deposition. In a total of 48 blue crabs collected on October 2007 at 3 sites of the Sao Vicente Estuary, 12 specimens were infested with leeches. Callinectes bocourti (n = 7) was the most infested species with leeches and cocoons; it was chosen for biochemical and histological assays. The immunoblotting assays showed a positive reaction of the proteins in the intestinal samples of leeches collected from crabs using antihemocyanin polyclonal antibody of Ampullaria canaliculata. In addition. leech intestinal samples were recognized by antihemolymph polyclonal antibody of nonparasitized blue crabs. Histological sections of leech gut showed hemocytes and a granular matrix similar to those found in crab blood vessels. Collectively, this evidence strongly suggests a parasitic interaction between the leech M. platensis and the blue crab C. bocourti, in which the former utilizes the latter as a site for cocoon deposition and possibly for dispersal similar to that proposed for Myzobdella lugubris in Callinectes sapidus in North America. (AU) | |
| Processo FAPESP: | 05/04707-5 - Histologia e ultrassonografia do desenvolvimento das gônadas de Brachyura (Crustacea) |
| Beneficiário: | Fernando Jose Zara |
| Modalidade de apoio: | Auxílio à Pesquisa - Jovens Pesquisadores |
| Processo FAPESP: | 06/55778-2 - Avaliacao dos efeitos induzidos por cumarians sobre a atividade inflamatoria e biologica de pla2 de serpentes bothrops jararacussu e crotalus durissus collilineatus. |
| Beneficiário: | Marcos Hikari Toyama |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 04/13463-0 - Avaliação bioquímica e farmacológica do uso de flavonóides sobre a atividade biológica e farmacológica de fosfolipases A2 isoladas de veneno de Crotalus durissus cascavella |
| Beneficiário: | Carolina Veras Iglesias |
| Modalidade de apoio: | Bolsas no Brasil - Iniciação Científica |