Comparative morphological and molecular studies on Myxobolus spp. infecting chub from the River Danube, Hungary, and description of M. muellericus sp. n.

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50 Citations (Scopus)

Abstract

During a survey on fishes from the River Danube, the occurrence of 8 Myxobolus species (Myxozoa: Myxobolidae) was registered in chub Leuciscus cephalus L. Most species had a specific location within the fish host. M. cycloides was found in the wall of the swimbladder; the branched plasmodia of M. dujardini were located typically in the epithelium of the non-lamellar part of gill filaments; the plasmodia of M. ellipsoides infected fins between 2 fin rays; M. muelleri and Myxobolus sp. 2 formed large elongated plasmodia in the afferent gill artery of filaments, while the round cysts of M. muellericus sp. n. filled the capillary network of the gill lamellae. Intramuscular plasmodia of M. pseudodispar proved to be the most common, although large cysts of Myxobolus sp. 1 were also frequently found in the intestinal wall. Despite similarities of some species in spore morphology, 18S rDNA sequences showed clear differences between the species examined.

Original languageEnglish
Pages (from-to)49-61
Number of pages13
JournalDiseases of Aquatic Organisms
Volume73
Issue number1
DOIs
Publication statusPublished - Nov 21 2006

Keywords

  • Histology
  • Molecular phylogeny
  • Myxozoa
  • Occurrence
  • Site selection

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science

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