Premium
Development of Myxobolus bramae (Myxosporea: Myxobolidae) in an oligochaete alternate host, Tubifex tubifex
Author(s) -
Eszterbauer E.,
Székely Cs,
Molnár K.,
Baska F.
Publication year - 2000
Publication title -
journal of fish diseases
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 85
eISSN - 1365-2761
pISSN - 0140-7775
DOI - 10.1046/j.1365-2761.2000.00202.x
Subject(s) - tubifex tubifex , tubifex , biology , oligochaeta (plant) , myxosporea , gill , parasite hosting , zoology , anatomy , host (biology) , spore , ecology , fish <actinopterygii> , microbiology and biotechnology , fishery , world wide web , computer science
The development of Myxobolus bramae Reuss 1906, a myxosporean parasite of the gills of common bream Abramis brama L., was studied in experimentally infected oligochaetes. In five experiments, uninfected Tubifex tubifex (Müller) and Limnodrilus hoffmeisteri Claparéde were exposed to mature myxospores of M. bramae . In four experiments triactinomyxon type actinospores developed in Tubifex specimens but no infection was found in Limnodrilus . Actinospores were released from oligochaetes 70–81 days after initial exposure. At that time pansporocysts containing eight actinospores were located in the gut epithelium of experimental oligochaetes, but free actinosporean stages were also found in their gut lumen. Each actinospore had three pyriform polar capsules and a barrel‐shaped sporoplasm with 32 secondary cells. The spore body joined the three caudal projections with a stout style. The total length of the actinospore was 139 μm on the average.