Extrapiscine development of Myxobolus drjagini Akhmerov, 1954 (Myxosporea

Myxobolidae) in oligochaete alternative hosts

Amina El-Mansy, K. Molnár

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

The extrapiscine development of Myxobolus drjagini, a myxosporean parasite of the head, operculum and buccal cavity of the silver carp (Hypophthalmichthys molitrix), was studied in experimentally infected oligochaetes, Tubifex tubifex. After infection of uninfected tubificids with mature spores of M. drjagini, development of actinosporean stages was first observed by light microscopy 27 days after infection. Triactinomyxon stages of M. drjagini emerged from the worms after 91 days of intraoligochaete development. In histological sections, early pansporocysts were found in the gut epithelium of the experimental oligochaetes 42 days after infection. Mature pansporocysts, each containing 8 triactinomyxons, appeared 79 days after infection. After rupture of the epithelial cell and the pansporocyst, free actinosporean stages were found in the gut lumen of the oligochaete. Actinosporean stages released from oligochaetes appeared in the water 91 days after infection. They were floating in the water and showed a typical triactinomyxon form. Each triactinomyxon had three pyriform polar capsules, a sporoplasm with 14 secondary cells inside the spore body, a moderately long style and slightly bent, trifurcated, conically ending tails. The total length of the triactinomyxon measured approximately 198 μm. The prevalence of infection in 51 oligochaetes proved to be 9.8%. No infection was found in the control oligochaetes.

Original languageEnglish
Pages (from-to)427-438
Number of pages12
JournalActa Veterinaria Hungarica
Volume45
Issue number4
Publication statusPublished - 1997

Fingerprint

Myxobolus
Myxozoa
alternative hosts
Oligochaeta
Infection
infection
Hypophthalmichthys molitrix
Carps
Spores
digestive system
spores
Tubifex tubifex
Water
Cheek
Myxosporea
Myxobolidae
Capsules
Tail
light microscopy
Rupture

Keywords

  • Development in alternative host
  • Myxobolus drjagini
  • Myxozoa
  • Triactinomyxon stage
  • Tubifex tubifex

ASJC Scopus subject areas

  • veterinary(all)

Cite this

Extrapiscine development of Myxobolus drjagini Akhmerov, 1954 (Myxosporea : Myxobolidae) in oligochaete alternative hosts. / El-Mansy, Amina; Molnár, K.

In: Acta Veterinaria Hungarica, Vol. 45, No. 4, 1997, p. 427-438.

Research output: Contribution to journalArticle

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