Full text

Turn on search term navigation

© 2016. This work is published under http://creativecommons.org/licenses/by/4.0/deed.en (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

The present study investigated the morphology and pathology associated with the occurrence of cysts caused by Myxobolus sp. in the intestine of the silver catfish Rhamdia quelen . Comparisons with the other Myxobolus species that infect the intestines of cyprinids and siluriforms revealed that the pyriform spores of Myxobolus sp. are similar in shape to those described previously in M. miyairii, M. duodenalis and M. cunhai, but different in size. Morphometric analyses revealed that mature spores of Myxobolus sp. (10.9 x 5.1μm) are smaller than those of most species except M. cunhai (10.0 x 5.0μm), which has been described infecting the Brazilian catfish Pimelodus clarias , although the spores differ morphologically in relation to the shape of the polar capsules. Further research is necessary in order to clarify the taxonomic and phylogenetic relationships among these congeneric species.

Alternate abstract:

O presente estudo investigou a morfologia e patologia associada com a ocorrência de cistos de Myxobolus sp. no intestino do peixe siluriforme Rhamdia quelen . Comparações com outras espécies de Myxobolus que têm infectado intestinos de carpas e bagres de água doce demonstraram que os esporos piriformes de Myxobolus sp. são similares no formato dos anteriormente descritos para M. miyairii, M. duodenalis e M. cunhai , diferindo, no entanto, quanto ao tamanho. As análises morfométricas revelaram que os esporos maduros de Myxobolus sp. (10,9 x 5,1μm) são menores do que os da maioria das espécies, exceto para M. cunhai (10,0 x 5,0μm), que foi descrito infectando o bagre brasileiro Clarias pimelodus , embora os esporos sejam diferentes morfologicamente em relação à forma das cápsulas polares. Futuras pesquisas são necessárias para esclarecer as relações taxonômicas e filogenéticas entre espécies congêneres.

Details

Title
Myxozoan infection in the muscle layer of the intestine of Rhamdia quelen from the Amazon River Basin, Brazil
Author
Jacqueline Pompeu Abrunhosa; Michele Velasco Oliveira da Silva; José Ledamir Sindeaux Neto; Patrícia de Fátima Sacco dos Santos; Patrícia Santos Matos; Osimar de Carvalho Sanches; Edilson Rodrigues Matos
Pages
2024-2028
Section
Parasitology
Publication year
2016
Publication date
2016
Publisher
Universidade Federal de Santa Maria Centro de Ciencias Rurais
ISSN
01038478
e-ISSN
16784596
Source type
Scholarly Journal
Language of publication
English; Portuguese
ProQuest document ID
2492270349
Copyright
© 2016. This work is published under http://creativecommons.org/licenses/by/4.0/deed.en (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.