Myxozoan infection in the muscle layer of the intestine of Rhamdia quelen from the Amazon River Basin, Brazil

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.

Bibliographic Details

Main Authors:	Abrunhosa,Jacqueline Pompeu, Silva,Michele Velasco Oliveira da, Sindeaux Neto,José Ledamir, Santos,Patrícia de Fátima Sacco dos, Matos,Patrícia Santos, Sanches,Osimar de Carvalho, Matos,Edilson Rodrigues
Format:	Digital revista
Language:	English
Published:	Universidade Federal de Santa Maria 2016
Online Access:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001102024
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