| Full text | |
| Author(s): |
de Azevedo, Rodney Kozlowiski
[1]
;
Abdallah, Vanessa Doro
[1]
;
Krueger Paes, Jaciara Vanessa
[1]
;
Da Silva, Reinaldo Jose
[1]
;
Matos, Patricia
[2]
;
Velasco, Michele
[3]
;
Matos, Edilson
[3]
Total Authors: 7
|
| Affiliation: | [1] UNESP Univ Estadual Paulista, Dept Parasitol, Inst Biociencias, Sao Paulo - Brazil
[2] UFPA Univ Fed Para, Lab Pesquisa Edilson Matos, Belem, Para - Brazil
[3] Univ Fed Rural Amazonia, Lab Pesquisa Carlos Azevedo, Belem, Para - Brazil
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | Parasitology Research; v. 112, n. 10, p. 3601-3605, OCT 2013. |
| Web of Science Citations: | 5 |
| Abstract | |
A new species of Myxosporea, Henneguya nagelii n. sp., is described parasitizing the gills of Cyphocharax nagelii collected from Peixe's River, So Paulo State, Brazil. Among the fish examined, 16.7 % had gills parasitized by myxosporeans. The plasmodia were white, round, or oval and measured 150-250 mu m. The mature spores were fusiform and had smooth wall. The spores measurements were the following: total length, 34.5 +/- 4.2 (26.4-39.9) mu m; body length, 12.0 +/- 0.5 (11.2-11.9) mu m; body width, 4.9 +/- 0.3 (4.4-5.5) mu m; and caudal process length, 22.4 +/- 4.0 (14.7-27.3) mu m. The polar capsules were elongated and of unequal size, with lengths of 4.9 +/- 0.4 (4.0-5.9) mu m and 5.2 +/- 0.4 (4.6-6.0) mu m for the longest and shortest axes, respectively. Capsule width was 1.8 +/- 0.2 (1.5-2.2) mu m. Each capsule contained a polar filament with six to eight turns. There was no mucous envelope or iodinophilous vacuole. Morphometric differences between this parasite and other species of the genus Henneguya indicated that the parasite observed in C. nagelii is a new species. This is the first species of Myxosporea described in Peixe's River. (AU) | |
| FAPESP's process: | 10/06564-5 - Study of the biodiversity of Myxozoarian (Myxozoa: Myxosporea) parasites of dominant fish species from Rio do Peixe river, tributary of the medium Tietê River, São Paulo State, Brazil by means of morphological, histological and molecular characterization |
| Grantee: | Rodney Kozlowiski de Azevedo |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 11/00010-0 - Biodiversity of the myxozoans (Myxozoa: Myxosporea) parasite of dominant fishes from Peixes River, tributary of medium Tietê River, SP, by means of morphological, histological, and molecular characterization |
| Grantee: | Reinaldo José da Silva |
| Support Opportunities: | Regular Research Grants |