Parasitology Research

, Volume 107, Issue 5, pp 1137–1150 | Cite as

Differentiation of Myxobolus spp. (Myxozoa: Myxobolidae) infecting roach (Rutilus rutilus) in Hungary

  • Kálmán Molnár
  • Szilvia Marton
  • Csaba Székely
  • Edit Eszterbauer
Original Paper

Abstract

During a survey on fishes from Hungarian freshwaters, the occurrence of eight Myxobolus species was registered in roach (Rutilus rutilus L.). Most species had a specific location within the fish host. Of the known species infecting roach, the intramuscularly developing species Myxobolus pseudodispar was found to be the most common. Besides Myxobolus intimus and Myxobolus diversicapsularis infecting the capillary network of gill lamellae, Myxobolus feisti infecting the cartilaginous gill rays were observed. Of the “muelleri-type” Myxobolus spp, Myxobolus rutili and Myxobolus sommervillae sp. n. formed elongated plasmodia in the gill filaments outside and inside the arteria efferens, respectively, while Myxobolus wootteni sp. n. developed cysts in fins. Plasmodia and spores of Myxobolus fundamentalis sp. n. were detected in the cartilaginous gill arch under the basis of gill filaments. Despite similarities of some species in spore morphology, 18S rDNA sequences and phylogenetic analyses showed clear differences among all species examined. The findings of the study demonstrate that morphologically similar spores could only be correctly identified by considering the location of plasmodia and the genetic characters of the myxozoan species.

Keywords

Gill Filament Polar Capsule Polar Filament Rutilus Rutilus Spore Morphology 

Notes

Acknowledgements

The study was supported by the Hungarian Scientific Research Fund (OTKA, projects no. T45891, K75873 and K71837). The authors thank Ms. Györgyi Pataki for preparing drawings and histological slides.

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Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • Kálmán Molnár
    • 1
  • Szilvia Marton
    • 1
  • Csaba Székely
    • 1
  • Edit Eszterbauer
    • 1
  1. 1.Veterinary Medical Research InstituteHungarian Academy of SciencesBudapestHungary

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