Development of Myxobolus portucalensis Saraiva and Molnar, 1990 (Myxosporea: Myxobolidae) in the oligochaete Tubifex tubifex (Muller)

A. El-Mansy, K. Molnár, C. Székely

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

The extrapiscine development of Myxobolus portucalensis, a myxosporean parasite of the subcutaneous connective tissue of eel Anguilla anguilla L. was studied in the experimentally infected oligochaete Tubifex tubifex. After infecting parasite-free tubificids with mature spores of M. portucalensis, development of actinosporean stages was first observed with a light microscope 26 days after infection. Triactinospores of M. portucalensis emerged from the worms after 160 days of intra-oligochaete development. It was observed in histological sections that early pansporocysts were located in the gut epithelium of the experimental oligochaetes. Mature pansporocysts, each containing eight triactinospores, appeared 149 days after infection. After the rupture of pansporocysts, free actinospores were found in the lumen of the oligochaete gut. Released actinospores were floating in the water and showed a typical triactinomyxon form. Each triactinospore had three pyriform polar capsules, a sporoplasm with 32 secondary cells, a moderately long style and three slightly curved, sharply pointed caudal processes. The prevalence of infection in T. tubifex proved to be 52.5% (n = 40). No infection was found in Limnodrilus hoffmeisteri or in control Tubifex specimens.

Original languageEnglish
Pages (from-to)95-103
Number of pages9
JournalSystematic Parasitology
Volume41
Issue number2
DOIs
Publication statusPublished - 1998

Fingerprint

Myxobolus
Myxozoa
Tubifex tubifex
Oligochaeta
Anguilla
Infection
infection
Parasites
digestive system
Limnodrilus hoffmeisteri
Tubifex
parasites
Eels
Anguilla anguilla
Subcutaneous Tissue
light microscopes
eel
Spores
connective tissues
Connective Tissue

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Parasitology

Cite this

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abstract = "The extrapiscine development of Myxobolus portucalensis, a myxosporean parasite of the subcutaneous connective tissue of eel Anguilla anguilla L. was studied in the experimentally infected oligochaete Tubifex tubifex. After infecting parasite-free tubificids with mature spores of M. portucalensis, development of actinosporean stages was first observed with a light microscope 26 days after infection. Triactinospores of M. portucalensis emerged from the worms after 160 days of intra-oligochaete development. It was observed in histological sections that early pansporocysts were located in the gut epithelium of the experimental oligochaetes. Mature pansporocysts, each containing eight triactinospores, appeared 149 days after infection. After the rupture of pansporocysts, free actinospores were found in the lumen of the oligochaete gut. Released actinospores were floating in the water and showed a typical triactinomyxon form. Each triactinospore had three pyriform polar capsules, a sporoplasm with 32 secondary cells, a moderately long style and three slightly curved, sharply pointed caudal processes. The prevalence of infection in T. tubifex proved to be 52.5{\%} (n = 40). No infection was found in Limnodrilus hoffmeisteri or in control Tubifex specimens.",
author = "A. El-Mansy and K. Moln{\'a}r and C. Sz{\'e}kely",
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