Počet záznamů: 1

Ultrastructural aspects of spermatogenesis, testes, and vas deferens in the parthenogenetic tapeworm Atractolytocestus huronensis Anthony, 1958 (Cestoda: Caryophyllidea), a carp parasite from Slovakia

  1. 1.
    0364835 - BC-A 2012 RIV DE eng J - Článek v odborném periodiku
    Bruňanská, M. - Nebesářová, Jana - Oros, M.
    Ultrastructural aspects of spermatogenesis, testes, and vas deferens in the parthenogenetic tapeworm Atractolytocestus huronensis Anthony, 1958 (Cestoda: Caryophyllidea), a carp parasite from Slovakia.
    Parasitology Research. Roč. 108, č. 1 (2011), 61-68 ISSN 0932-0113
    Výzkumný záměr: CEZ:AV0Z60220518
    Klíčová slova: GLARIDACRIS-CATOSTOMI * SYNAPTONEMAL COMPLEX * REPRODUCTIVE DUCTS * COMMON CARP * SPERMATOZOA * PLATYHELMINTHES * VITELLOGENESIS * EVOLUTION * TRIPLOIDY * CESTOIDEA
    Kód oboru RIV: GJ - Choroby a škůdci zvířat, veterinární medicína
    Impakt faktor: 2.149, rok: 2011

    Spermatogenesis, testes, and vas deferens in the parthenogenetic monozoic tapeworm Atractolytocestus huronensis Anthony, 1958 (Cestoda: Caryophyllidea) from Slovakia, parasitizing the carp Cyprinus carpio L., have been investigated by means of transmission electron microscopy for the first time. The present results show that helminths with parthenogenetic and normal reproduction may share some common spermatology features, e.g., dense cytoplasm of the peripherally localized spermatogonia or a rosette type of spermatogenesis. In contrast to tapeworms with normal reproduction, the most prominent ultrastructural characteristic of the spermatocytes of A. huronensis is fragmentation of their nuclei. This clear feature of cell degeneration might be a consequence of the aberrant first meiotic division. Peripheral cortical microtubules and a single centriole, indicators of the ongoing spermiogenesis, were observed only very rarely in the early spermatids.
    Trvalý link: http://hdl.handle.net/11104/0200212