Prevalence, intensity, and phylogenetic analysis of Henneguya piaractus and Myxobolus cf. colossomatis from farmed Piaractus mesopotamicus in Brazil

Prevalence, intensity, and phylogenetic analysis of Henneguya piaractus and Myxobolus cf. colossomatis from farmed Piaractus mesopotamicus in Brazil

Author Mueller, Maria Isabel Google Scholar
Adriano, Edson Aparecido Autor UNIFESP Google Scholar
Ceccarelli, Paulo Sergio Google Scholar
Monteiro da Silva, Marcia Ramos Google Scholar
Mendes Maia, Antonio Augusto Google Scholar
Ueta, Marlene Tiduko Google Scholar
Institution Universidade Estadual de Campinas (UNICAMP)
Universidade Federal de São Paulo (UNIFESP)
Inst Chico Mendes Conservacao Biodiversidade
Universidade de São Paulo (USP)
Abstract Henneguya piaractus and Myxobolus colossomatis (Myxosporea: Myxobolidae) are commonly found in the characid Piaractus mesopotamicus, an important fish farm species in Brazil. This paper describes the prevalence, mean intensity, molecular phylogeny, ultrastructure, and histology of H. piaractus and M. cf. colossomatis found infecting specimens of P. mesopotamicus collected from fish farms in the state of São Paulo, Brazil. A total of 278 fish were collected from 3 fish farms between February 2008 and July 2010. Parasite prevalence and mean intensity varied throughout the study period, and according to location and year. A phylogenetic tree, placing South American species in a global context, showed a clear tendency among myxosporean species to cluster according to host families. Ultrastructural analysis for M. cf. colossomatis showed the plasmodial wall with numerous projections toward host cells and phagocytic activity. Histopathological data showed hyperplasia caused by H. piaractus in highly infected fish. Histological and ultrastructural analysis of H. piaractus showed results similar to those that have previously been reported.
Keywords Piaractus mesopotamicus
Henneguya piaractus
Myxobolus cf. colossomatis
Ultrastructure
Phylogeny
São Paulo
Language English
Sponsor Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Grant number CAPES: BEX 2034/10-7
: PROCAD NF 69/2010
Date 2013-12-12
Published in Diseases of Aquatic Organisms. Oldendorf Luhe: Inter-research, v. 107, n. 2, p. 129-139, 2013.
ISSN 0177-5103 (Sherpa/Romeo, impact factor)
Publisher Inter-research
Extent 129-139
Origin http://dx.doi.org/10.3354/dao02668
Access rights Closed access
Type Article
Web of Science ID WOS:000328695000005
URI http://repositorio.unifesp.br/handle/11600/37080

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