About: Ultrastructure of the ovarian follicles, oviducts and oocytes of Gyrocotyle urna (Neodermata: Gyrocotylidea)     Goto   Sponge   NotDistinct   Permalink

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  • An ultrastructural study of the ovarian follicles and their associated oviducts of the cestode Gyrocotyle urna Grube et Wagener, 1852, a parasite from the spiral valve of the rabbit fish, Chimaera monstrosa L., was undertaken. The ooplasm of mature oocytes contain lipid droplets (2.0 x 1.8 mu m) and cortical granules (0.26 x 0.19 mu m). The cytoplasm of primary and secondary oocytes contains centrioles, indicating the presence of the so-called %22centriole cycle%22 during oocyte divisions. A morphological variation between different oviducts was observed. A division of the ovary into separated parts with their own collecting ducts as that typical of Gyrocotyle has been observed in neodermates, basal monogenean family Chimaericolidae, and Neoophora (some Proseriata and Fecampiidae). Ultrastructural data thus reveal several unique morphological characteristics of gyrocotylideans, the most basal taxon of tapeworms (Cestoda).
  • An ultrastructural study of the ovarian follicles and their associated oviducts of the cestode Gyrocotyle urna Grube et Wagener, 1852, a parasite from the spiral valve of the rabbit fish, Chimaera monstrosa L., was undertaken. The ooplasm of mature oocytes contain lipid droplets (2.0 x 1.8 mu m) and cortical granules (0.26 x 0.19 mu m). The cytoplasm of primary and secondary oocytes contains centrioles, indicating the presence of the so-called %22centriole cycle%22 during oocyte divisions. A morphological variation between different oviducts was observed. A division of the ovary into separated parts with their own collecting ducts as that typical of Gyrocotyle has been observed in neodermates, basal monogenean family Chimaericolidae, and Neoophora (some Proseriata and Fecampiidae). Ultrastructural data thus reveal several unique morphological characteristics of gyrocotylideans, the most basal taxon of tapeworms (Cestoda). (en)
Title
  • Ultrastructure of the ovarian follicles, oviducts and oocytes of Gyrocotyle urna (Neodermata: Gyrocotylidea)
  • Ultrastructure of the ovarian follicles, oviducts and oocytes of Gyrocotyle urna (Neodermata: Gyrocotylidea) (en)
skos:prefLabel
  • Ultrastructure of the ovarian follicles, oviducts and oocytes of Gyrocotyle urna (Neodermata: Gyrocotylidea)
  • Ultrastructure of the ovarian follicles, oviducts and oocytes of Gyrocotyle urna (Neodermata: Gyrocotylidea) (en)
skos:notation
  • RIV/60077344:_____/10:00350361!RIV11-GA0-60077344
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA524/08/0885), P(KJB600960902), P(LC522), Z(AV0Z60220518)
http://linked.open...iv/cisloPeriodika
  • 3
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http://linked.open...aciTvurceVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...dnocenehoVysledku
  • 294219
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  • RIV/60077344:_____/10:00350361
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Platyhelminthes; comparative morphology; TEM; ovary; oocapt; ovarian receptacle; fertilisation canal (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • CZ - Česká republika
http://linked.open...ontrolniKodProRIV
  • [AF3FAF1F2A4F]
http://linked.open...i/riv/nazevZdroje
  • Folia Parasitologica
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http://linked.open...ichTvurcuVysledku
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http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 57
http://linked.open...iv/tvurceVysledku
  • Scholz, Tomáš
  • Poddubnaya, L. G.
  • Kuchta, Roman
  • Xylander, W.E.R.
http://linked.open...ain/vavai/riv/wos
  • 000282543400004
http://linked.open...n/vavai/riv/zamer
issn
  • 0015-5683
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