Development of Myxobolus dispar (Myxosporea: Myxobolidae) in an oligochaete alternate host, Tubifex tubifex

K. Molnár, Amina El-Mansy, C. Székely, F. Baska

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

The development of Myxobolus dispar Thelohan, 1895, a myxosporean parasite of the gills of common carp (Cyprinus carpio L.) was studied in experimentally infected oligochaetes Tubifex tubifex Muller. After infection of uninfected tubificids with mature spores of M. dispar, development of actinosporean stages was first observed light microscopically 21 days after initial exposure. In histological sections, early pansporocysts were located in the gut epithelium of experimental oligochaetes, while advanced stages occupied mostly the outer layers of the gut and the coelozoic space. Mature pansporocysts, each containing 8 raabeia spores, appeared 199 days after initial exposure. Following damage of the intestinal wall and rupture of the pansporocysts, free actinosporean stages were found in the gut lumen of the oligochaetes. Actinospores of M. dispar emerged from the worms after 217 days of intra-oligochaete development. They were floating in the water and showed a unique raabeia form. Each raabeia spore had three pyriform polar capsules and a cylindrical-shaped sporoplasm with approximately 32 secondary cells. The spore body joined the three caudal projections without a style. Caudal projections were bifurcated at the end and the two main branches had further small bifurcations. The total length of the raabeia spore was approximately 158 μm. The prevalence of infection in 240 experimentally infected Tubifex specimens was 99.2%. No infection was found in the control oligochaetes.

Original languageEnglish
Pages (from-to)15-21
Number of pages7
JournalFolia Parasitologica
Volume46
Issue number1
Publication statusPublished - 1999

Fingerprint

Myxobolus
Myxozoa
Tubifex tubifex
Oligochaeta
Spores
spores
Carps
digestive system
Cyprinus carpio
Infection
infection
Tubifex
Capsules
Rupture
gills
Parasites
epithelium
Epithelium
Myxosporea
Myxobolidae

Keywords

  • Development
  • Myxobolus dispar
  • Myxozoa
  • Raabeia stages
  • Tubifex tubifex

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Parasitology

Cite this

Development of Myxobolus dispar (Myxosporea : Myxobolidae) in an oligochaete alternate host, Tubifex tubifex. / Molnár, K.; El-Mansy, Amina; Székely, C.; Baska, F.

In: Folia Parasitologica, Vol. 46, No. 1, 1999, p. 15-21.

Research output: Contribution to journalArticle

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