Počet záznamů: 1  

High prevalence of trypanosome co-infections in freshwater fishes

  1. 1.
    0439395 - BC 2015 RIV CZ eng J - Článek v odborném periodiku
    Grybchuk-Ieremenko, A. - Losev, A. - Kostygov, A.Y. - Lukeš, Julius - Yurchenko, Vyacheslav
    High prevalence of trypanosome co-infections in freshwater fishes.
    Folia Parasitologica. Roč. 61, č. 6 (2014), s. 495-504. ISSN 0015-5683. E-ISSN 1803-6465
    Grant CEP: GA MŠMT(CZ) EE2.3.30.0032
    Institucionální podpora: RVO:60077344
    Klíčová slova: Trypanosoma, * blood parasites * mixed infections * phylogeny * 18S rRNA * teleosts
    Kód oboru RIV: EB - Genetika a molekulární biologie
    Impakt faktor: 1.147, rok: 2014

    One thousand three hundred seventy three fish specimens of eight different species from the vicinity of Kyiv, Ukraine, were examined for the presence of trypanosomes and 921 individuals were found to be infected. The prevalence of infection ranged from 24% in freshwater bream, Abramis brama (Linnaeus), to 100 % in spined loach, Cobitis ‘taenia’ Linnaeus. The level of parasitaemia also varied significantly between generally mild infections in pikeperch, Sander lucioperca (Linnaeus), and heavy ones in C. ‘taenia’. In most cases the infections with trypanosomes were asymptomatic. Cases of co-infection with species of Trypanoplasma Laveran et Mesnil, 1901 were documented for five out of eight examined host species. Molecular analysis of the 18S rDNA sequences revealed that four hosts, namely northern pike, Esox lucius Linnaeus, freshwater bream, spined loach and European perch, Perca fluviatilis Linnaeus, were simultaneously infected with two different trypanosome species. Our findings advocate the view that to avoid the risk posed by mixed infections, subsequent molecular taxonomic studies should be performed on clonal lines derived from laboratory cultures of fish trypanosomes.
    Trvalý link: http://hdl.handle.net/11104/0242731

     
     
Počet záznamů: 1  

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