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Infection of the heart of the common bream, Abramis brama (L.), with Myxobolus s.l. dogieli (Myxozoa, Myxobolidae)
Author(s) -
Molnár K,
Cech G,
Székely C
Publication year - 2008
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 - 10.1111/j.1365-2761.2008.00904.x
Subject(s) - myxozoa , myxobolus , biology , myxosporea , endocardium , zoology , spore , anatomy , cyprinidae , parasite hosting , fishery , fish <actinopterygii> , microbiology and biotechnology , gill , medicine , world wide web , computer science
Myxobolus dogieliBykhovskaya‐Pavlovskaya & Bykhovski, 1940 is regarded as a site specific myxosporean, infecting the heart of cyprinid fish. During a survey of the myxosporean fauna of Lake Balaton fish, heart myxobolosis was found in the common bream, Abramis brama , with heavy infection of the ventricle and the bulbus arteriosus in some infected bream. Developing and mature plasmodia were mostly in the connective tissue of the subepicardium and subendocardium. Plasmodia developing in the subendocardium protruded into the lumen of the heart, while plasmodia developing in the subepicardium protruded over the epicardium forming large sausage‐like outgrowths. Plasmodia with mature spores were found in the summer. The shape and size of the spores corresponded to those of the original description. Phylogenetic analysis based on the 18S rDNA sequence of M. dogieli showed that this species fit well in the genus Myxobolus . As no molecular data are available on spores from the type host, common carp, the species studied by us is temporarily designated as Myxobolus s.l. dogieli.