Phylogenetic and host-parasite relationship analysis of Henneguya multiplasmodialis n. sp infecting Pseudoplatystoma spp. in Brazilian Pantanal wetland

Phylogenetic and host-parasite relationship analysis of Henneguya multiplasmodialis n. sp infecting Pseudoplatystoma spp. in Brazilian Pantanal wetland

Autor Adriano, Edson Aparecido Autor UNIFESP Google Scholar
Carriero, Mateus Maldonado Google Scholar
Maia, Antonio Augusto Maia Google Scholar
Silva, Marcia Ramos Monteiro da Google Scholar
Naldoni, Juliana Google Scholar
Ceccarelli, Paulo Sergio Google Scholar
Arana, Sarah Google Scholar
Instituição Universidade Federal de São Paulo (UNIFESP)
Universidade de São Paulo (USP)
Universidade Estadual de Campinas (UNICAMP)
Inst Chico Mendes Conservacao Biodiversidade ICMb
Resumo A new species of the genus Henneguya (Henneguya multiplasmodialis n. sp.) was found infecting the gills of three of 89 specimens (3.3%) of Pseudoplatystoma corruscans and two of 79 specimens (2.6%) of Pseudoplatystoma reticulatum from rivers in the Pantanal wetland, Brazil. Partial sequencing of the 18S rDNA gene of the spores obtained from one plasmodium from the gills of P. corruscans and other one from the gills of P. reticulatum, respectively, resulted in a total of 1560 and 1147 base pairs. As the spores of H. multiplasmodialis n. sp. resemble those of Henneguya corruscans, which is also a parasite of P. corruscans, sequencing of the 18S rDNA gene of the spores of H. corruscans found on P. corruscans caught in the Brazilian Pantanal wetland was also provided to avoid any taxonomic pendency between these two species, resulting in 1913 base pairs. the sequences of H. multiplasmodialis n. sp. parasite of P. corruscans and P. reticulatum and H. corruscans did not match any of the Myxozoa available in the GenBank. the similarity of H. multiplasmodialis n. sp. obtained from P. corruscans to that from P. reticulatum was of 99.7%. Phylogeny revealed a strong tendency among Henneguya species to form clades based on the order and/or family of the host fish. H. multiplasmodialis n. sp. clustered in a clade with Henneguya eirasi and H. corruscans, which are also parasites of siluriforms of the family Pimelodidae and, together with the clade composed of Henneguya spp. parasites of siluriforms of the family Ictaluridae, formed a monophyletic clade of parasites of siluriform hosts. the histological study revealed that the wall of the plasmodia of H. multiplasmodialis n. sp. were covered with a stratified epithelium rich in club cells and supported by a layer of connective tissue. the interior of the plasmodia had a network of septa that divided the plasmodia into numerous compartments. the septa were composed of connective tissue also covered on both sides with a stratified epithelium rich in club cells. Inflammatory infiltrate was found in the tissue surrounding the plasmodia as well as in the septa. (C) 2011 Elsevier B.V. All rights reserved.
Assunto Myxozoa
Club cells
Henneguya corruscans
18S rDNA
Pseudoplatystoma corruscans
Pseudoplatystoma reticulatum
Idioma Inglês
Financiador Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
CEPTA/ICMBio
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Número do financiamento FAPESP: 06/59075-6
Data 2012-04-30
Publicado em Veterinary Parasitology. Amsterdam: Elsevier B.V., v. 185, n. 2-4, p. 110-120, 2012.
ISSN 0304-4017 (Sherpa/Romeo, fator de impacto)
Editor Elsevier B.V.
Extensão 110-120
Fonte http://dx.doi.org/10.1016/j.vetpar.2011.10.008
Direito de acesso Acesso aberto Open Access
Tipo Artigo
Web of Science WOS:000302839700008
URI http://repositorio.unifesp.br/handle/11600/34807

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