2015
PARADIPLOZOON HOMOION (MONOGENEA): DIGESTIVE TRACT ON THE FINE STRUCTURE LEVEL
KONSTANZOVÁ, Veronika, Božena KOUBKOVÁ, Jana ILGOVÁ a Milan GELNARZákladní údaje
Originální název
PARADIPLOZOON HOMOION (MONOGENEA): DIGESTIVE TRACT ON THE FINE STRUCTURE LEVEL
Autoři
KONSTANZOVÁ, Veronika (203 Česká republika, domácí), Božena KOUBKOVÁ (203 Česká republika, domácí), Jana ILGOVÁ (703 Slovensko, domácí) a Milan GELNAR (203 Česká republika, domácí)
Vydání
9th International Symposium on Fish Parasites, 31 August – 4 September 2015, Valencia, Spain, 2015
Další údaje
Jazyk
angličtina
Typ výsledku
Konferenční abstrakt
Obor
10600 1.6 Biological sciences
Stát vydavatele
Česká republika
Utajení
není předmětem státního či obchodního tajemství
Kód RIV
RIV/00216224:14310/15:00081010
Organizační jednotka
Přírodovědecká fakulta
Klíčová slova česky
Paradiplozoon homoion Monogenea ultrastruktura trávicí trakt haematinová buňka
Klíčová slova anglicky
Paradiplozoon homoion Monogenea ultrastructure digestive tract haematin cell
Příznaky
Mezinárodní význam
Změněno: 16. 10. 2015 12:36, Mgr. et Mgr. Jana Ilgová, Ph.D.
Anotace
V originále
Diplozoons (Monogenea) are blood-feeding ectoparasites of fish with specific cross body arrangement of two permanently fused adult individuals. Each has two large bucal suckers and a muscular pharynx in the anterior part and an opisthaptor with scleroprotein clamps and hooks in the posterior part of body. Whereas these conspicuous morphological structures have been frequently studied, details of internal morphology and ultrastructure are little known. Specimens of P. homoion were obtained from the gills of common bleak Alburnus alburnus; the fish were caught in the littoral zone of Mušov lowland reservoir (South Moravia, Czech Republic). The fish gills were checked using stereo microscope for the presence of all diplozoid ontogenetic stages. Founded parasites were fixed by 2% osmium tetroxide, dehydrated through ascending acetone series and immediately embedded in a Spurr resin. All sections were obtained by Leica EM UC6i ultramicrotome. Semi-thin sections were stained by toluidine blue and ultra-thin sections were contrasted by uranyl acetate lead citrate. Ultra-thin sections were examined by transmission electron microscope operating at 60 kV (JEOL JEM-1010) equipped with Megaview II software. In this study, the ultrastructural details of the gastrointestinal tract of this worm which represent a unique documentation of specialised structures such as buccal suckers, pharynx with pharyngeal glandular cells, haematin cells and the ultrastructural view of the gut lumen with intact erythrocytes, were documented. Our findings support the hypothesis that the mechanism of P. homoion digestion is predominantly intracellular.
Návaznosti
GAP506/12/1258, projekt VaV |
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