Počet záznamů: 1

Ultrastructure of spermiogenesis and mature spermatozoon of Breviscolex orientalis (Cestoda: Caryophyllidea)

  1. 1.
    0359383 - BC-A 2012 RIV DE eng J - Článek v odborném periodiku
    Yoneva, Aneta - Levron, Céline - Oros, M. - Orosová, M. - Scholz, Tomáš
    Ultrastructure of spermiogenesis and mature spermatozoon of Breviscolex orientalis (Cestoda: Caryophyllidea).
    Parasitology Research. Roč. 108, č. 4 (2011), 997-1005 ISSN 0932-0113
    Grant CEP: GA ČR GA524/08/0885; GA ČR GAP506/10/1994; GA MŠk LC522
    Výzkumný záměr: CEZ:AV0Z60220518
    Klíčová slova: GLARIDACRIS-CATOSTOMI COOPER * WENYONIA-VIRILIS WOODLAND * SPERMATOLOGICAL CHARACTERS * SPERM ULTRASTRUCTURE * SPERMATOGENESIS * EUTETRARHYNCHIDAE
    Kód oboru RIV: GJ - Choroby a škůdci zvířat, veterinární medicína
    Impakt faktor: 2.149, rok: 2011

    Spermiogenesis and spermatozoon ultrastructure of the caryophyllidean cestode Breviscolex orientalis Kulakovskaya, 1962, a parasite of cyprinid fish Abbottina rivularis, are described using TEM. Spermiogenesis in B. orientalis follows the Type II. During the spermiogenesis, an electron-dense material is observed in the apical region of the differentiation zone; one of the centrioles gives rise to a free flagellum, which then rotates and undergoes proximodistal fusion with the cytoplasmic protrusion of the differentiation zone. The mature spermatozoon of B. orientalis corresponds to the Type III pattern. The comparison of the spermiogenesis of B. orientalis with those of the other caryophyllidean species demonstrates some variation within the order relative to the presence and morphology of the intercentriolar body, the presence of slight rotation of the flagellar bud and a complete proximodistal fusion of the free flagellum with a cytoplasmic protrusion.
    Trvalý link: http://hdl.handle.net/11104/0197177