Light and electron microscopy of Myxobolus sciades n. sp. (Myxozoa), a parasite of the gills of the Brazilian fish Sciades herzbergii (Block, 1794) (Teleostei: Ariidae)

AZEVEDO, Carlos José Correia de; CASAL, Graça Maria Figueiredo; MENDONÇA, Ivete Lopes de; CARVALHO, Erisson; MATOS, Patrícia Santos; MATOS, Edilson Rodrigues

Artigo

Light and electron microscopy of Myxobolus sciades n. sp. (Myxozoa), a parasite of the gills of the Brazilian fish Sciades herzbergii (Block, 1794) (Teleostei: Ariidae)

A myxosporean parasite in the gill lamellae of the freshwater teleost fish, Sciades herzbergii (Ariidae) (Block, 1794), from the Poti River (Northeast of Brazil) was described by light and electron microscopy studies. Polysporic histozoic cyst-like plasmodia containing several life-cycle stages, inc...

ver descrição completa

Autor principal:	AZEVEDO, Carlos José Correia de
Outros Autores:	CASAL, Graça Maria Figueiredo, MENDONÇA, Ivete Lopes de, CARVALHO, Erisson, MATOS, Patrícia Santos, MATOS, Edilson Rodrigues
Grau:	Artigo
Idioma:	eng
Publicado em:	2014
Assuntos:	Peixe Parasitos Ictioparasitologia Infecção parasitária Myxobolus sciades Myxozoa Sciades herzbergii Teleósteos Ultraestrutura Esporos Brânquias Guelras Rio Poti - PI Piauí - Estado
Acesso em linha:	http://repositorio.ufpa.br/jspui/handle/2011/5971

id	ir-2011-5971
recordtype	dspace
spelling	ir-2011-59712017-10-16T15:20:51Z Light and electron microscopy of Myxobolus sciades n. sp. (Myxozoa), a parasite of the gills of the Brazilian fish Sciades herzbergii (Block, 1794) (Teleostei: Ariidae) AZEVEDO, Carlos José Correia de CASAL, Graça Maria Figueiredo MENDONÇA, Ivete Lopes de CARVALHO, Erisson MATOS, Patrícia Santos MATOS, Edilson Rodrigues Peixe Parasitos Ictioparasitologia Infecção parasitária Myxobolus sciades Myxozoa Sciades herzbergii Teleósteos Ultraestrutura Esporos Brânquias Guelras Rio Poti - PI Piauí - Estado A myxosporean parasite in the gill lamellae of the freshwater teleost fish, Sciades herzbergii (Ariidae) (Block, 1794), from the Poti River (Northeast of Brazil) was described by light and electron microscopy studies. Polysporic histozoic cyst-like plasmodia containing several life-cycle stages, including mature spores, were observed. The spores were pyriform and uninucleate, measuring 9.15 ± 0.39 μm (n = 50) long, 4.36 ± 0.23 μm (n = 25) wide and 2.61 ± 0.31 μm (n = 25) thick. Elongated pyriform polar capsules (PC) were of equal size (4.44 ± 0.41 μm long and 1.41 ± 0.42 μm in diameter) and each contained a polar filament with 9-10 coils obliquely arranged in relation to the axis of PC. The PC wall was composed of two layers of different electron densities. Histological analysis revealed the close contact of the cyst-like plasmodia with the basal portion of the epithelial gill layer, which exhibited some alterations in the capillary vessels. Based on the morphological and ultrastructural differences, the similarity of the spore features to those of the genus Myxobolus and the specificity of this host to previously described species, we describe a new species named Myxobolus sciades n. sp. in this study. 2014-10-31T16:42:24Z 2014-10-31T16:42:24Z 2010-03 Artigo de Periódico AZEVEDO, Carlos et al. Light and electron microscopy of Myxobolus sciades n. sp. (Myxozoa), a parasite of the gills of the Brazilian fish Sciades herzbergii (Block, 1794) (Teleostei: Ariidae). Memórias do Instituto Oswaldo Cruz, Rio de Janeiro, v. 105, n. 2, p. 203-207, mar. 2010. Disponível em: <http://www.scielo.br/pdf/mioc/v105n2/16.pdf>. Acesso em: 10 jul. 2014. <http://dx.doi.org/10.1590/S0074-02762010000200016>. 0074-0276 http://repositorio.ufpa.br/jspui/handle/2011/5971 eng Acesso Aberto application/pdf
institution	Repositório Institucional - Universidade Federal do Pará
collection	RI-UFPA
language	eng
topic	Peixe Parasitos Ictioparasitologia Infecção parasitária Myxobolus sciades Myxozoa Sciades herzbergii Teleósteos Ultraestrutura Esporos Brânquias Guelras Rio Poti - PI Piauí - Estado
spellingShingle	Peixe Parasitos Ictioparasitologia Infecção parasitária Myxobolus sciades Myxozoa Sciades herzbergii Teleósteos Ultraestrutura Esporos Brânquias Guelras Rio Poti - PI Piauí - Estado AZEVEDO, Carlos José Correia de Light and electron microscopy of Myxobolus sciades n. sp. (Myxozoa), a parasite of the gills of the Brazilian fish Sciades herzbergii (Block, 1794) (Teleostei: Ariidae)
topic_facet	Peixe Parasitos Ictioparasitologia Infecção parasitária Myxobolus sciades Myxozoa Sciades herzbergii Teleósteos Ultraestrutura Esporos Brânquias Guelras Rio Poti - PI Piauí - Estado
description	A myxosporean parasite in the gill lamellae of the freshwater teleost fish, Sciades herzbergii (Ariidae) (Block, 1794), from the Poti River (Northeast of Brazil) was described by light and electron microscopy studies. Polysporic histozoic cyst-like plasmodia containing several life-cycle stages, including mature spores, were observed. The spores were pyriform and uninucleate, measuring 9.15 ± 0.39 μm (n = 50) long, 4.36 ± 0.23 μm (n = 25) wide and 2.61 ± 0.31 μm (n = 25) thick. Elongated pyriform polar capsules (PC) were of equal size (4.44 ± 0.41 μm long and 1.41 ± 0.42 μm in diameter) and each contained a polar filament with 9-10 coils obliquely arranged in relation to the axis of PC. The PC wall was composed of two layers of different electron densities. Histological analysis revealed the close contact of the cyst-like plasmodia with the basal portion of the epithelial gill layer, which exhibited some alterations in the capillary vessels. Based on the morphological and ultrastructural differences, the similarity of the spore features to those of the genus Myxobolus and the specificity of this host to previously described species, we describe a new species named Myxobolus sciades n. sp. in this study.
format	Artigo
author	AZEVEDO, Carlos José Correia de
author2	CASAL, Graça Maria Figueiredo MENDONÇA, Ivete Lopes de CARVALHO, Erisson MATOS, Patrícia Santos MATOS, Edilson Rodrigues
author2Str	CASAL, Graça Maria Figueiredo MENDONÇA, Ivete Lopes de CARVALHO, Erisson MATOS, Patrícia Santos MATOS, Edilson Rodrigues
title	Light and electron microscopy of Myxobolus sciades n. sp. (Myxozoa), a parasite of the gills of the Brazilian fish Sciades herzbergii (Block, 1794) (Teleostei: Ariidae)
title_short	Light and electron microscopy of Myxobolus sciades n. sp. (Myxozoa), a parasite of the gills of the Brazilian fish Sciades herzbergii (Block, 1794) (Teleostei: Ariidae)
title_full	Light and electron microscopy of Myxobolus sciades n. sp. (Myxozoa), a parasite of the gills of the Brazilian fish Sciades herzbergii (Block, 1794) (Teleostei: Ariidae)
title_fullStr	Light and electron microscopy of Myxobolus sciades n. sp. (Myxozoa), a parasite of the gills of the Brazilian fish Sciades herzbergii (Block, 1794) (Teleostei: Ariidae)
title_full_unstemmed	Light and electron microscopy of Myxobolus sciades n. sp. (Myxozoa), a parasite of the gills of the Brazilian fish Sciades herzbergii (Block, 1794) (Teleostei: Ariidae)
title_sort	light and electron microscopy of myxobolus sciades n. sp. (myxozoa), a parasite of the gills of the brazilian fish sciades herzbergii (block, 1794) (teleostei: ariidae)
publishDate	2014
url	http://repositorio.ufpa.br/jspui/handle/2011/5971
_version_	1832603727575384064
score	11.755432

Light and electron microscopy of Myxobolus sciades n. sp. (Myxozoa), a parasite of the gills of the Brazilian fish Sciades herzbergii (Block, 1794) (Teleostei: Ariidae)

Registros relacionados