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Alternation of Actinosporean and Myxosporean Phases in the Life Cycle of Zschokkella nova (Myxozoa)
Author(s) -
USPENSKAYA ANNA V.
Publication year - 1995
Publication title -
journal of eukaryotic microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.067
H-Index - 77
eISSN - 1550-7408
pISSN - 1066-5234
DOI - 10.1111/j.1550-7408.1995.tb01612.x
Subject(s) - biology , myxozoa , tubifex tubifex , parasite hosting , carassius auratus , spore , oligochaeta (plant) , myxosporea , zoology , myxobolus , fish <actinopterygii> , tubifex , ecology , microbiology and biotechnology , gill , fishery , world wide web , computer science
. Experimental evidence has been gathered to show that the life cycle of the myxozoan gallbladder parasite Zschokkella nova Klokacewa, 1914, which infects the fish Carassius carassius , has a complex life cycle with alternation of two hosts (fish and Oligochaeta) and two developmental phases (myxosporean and actinosporean). The gut epithelium of the oligochaete, Tubifex tubifex , exposed experimentally to Z. nova , obtained from C. carassius , became infected with organisms resembling Actinosporea. The spore structure and cube‐like network of the interconnected spores is reminiscent of Siedleckiella silesica Janiszewska, 1952, although the spores are very different in size and number of sporoplasm nuclei. The life cycle of Z. nova resembles that of the whirling disease agent Myxosoma cerebralis described by Wolf and Markiw, which also alternates between fish and oligochaete hosts.