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Die Anheftung (Fixation) der Cercarie von Schistosoma mansoni

Einfluß natürlicher Substrate und der Temperatur

The attachment response of the cercaria of Schistosoma mansoni.

Influence of natural substrates and temperature

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Summary

The behaviour of the cercaria, following contact with different animal and human substrates during swimming, has been studied. Four patterns of behaviour related to the intensity of stimulation can be distinguished: 1. backward reaction, 2. stopping, 3. forward reaction, 4. attachment (Figs. 2 and 3).

Mechanical stimulation of the cercaria by touching or water turbulence, prior to contact with the substrate has an insignificant effect on attachment. Both attachment and the first step in penetration (crawling over the substrate) are stimulated by a rise in temperature (Figs. 4 and 5) and the chemical properties of the substrate. However, the steps in penetration may possibly be stimulated by chemical components and perceived by receptors different from those involved in attachment.

Zusammenfassung

Das Verhalten der Cercarie beim Kontakt während eines Schwimmstoßes mit verschiedenen tierischen und menschlichen Substraten wurde untersucht. In Abhängigkeit von der Intensität von Invasionsstimuli erhält man 4 Verhaltensweisen: 1. Rückwärtsreaktion, 2. Stopreaktion, 3. Vorwärtsreaktion, 4. Anheftung (Fixation).

Eine mechanische Reizung der Cercarie vor dem Kontakt mit dem Substrat beeinflußt die Fixation nur unbedeutend. Sowohl Fixationen als auch der erste Penetrationsschritt (Kriechen auf dem Substrat) werden durch eine erhöhte Temperatur und den Chemismus der Substrate stimuliert. Doch werden die Penetrationsschritte möglicherweise über andere Rezeptoren und durch andere chemische Komponenten ausgelöst als die Fixation.

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Literatur

  • Austin, F.G., Frappaolo, P., Gilbert, B., Landis, W., da Rosa, M.N., Stirewalt, M.A.: Further studies of Schistosoma mansoni cercarial stimulation by crude egg lecithin and other lipids. Parasitology 69, 455–463 (1974)

    Google Scholar 

  • Austin, F.G., Stirewalt, M.A., Danzinger, R.E.: Schistosoma mansoni: Stimulatory effect of rat skin lipid fractions on cercarial penetration behavior. Exp. Parasit. 31, 217–224 (1972)

    Google Scholar 

  • Bolwig, N.: An experimental study of the behaviour and host-recognition in Schistosoma cercariae. S. Afr. J. Sci. 51, 338–344 (1955)

    Google Scholar 

  • Graefe, G., Hohorst, W., Dräger, H.: Forked tail of the cercaria of Schistosoma mansoni a rowing device. Nature (Lond.) 215, 207–208 (1967)

    Google Scholar 

  • Haas, W.: Analyse der Invasionsmechanismen der Cercarie von Diplostomum spathaceum. I. Fixation und Penetration. Int. J. Parasit. 4, 311–319 (1974a)

    Google Scholar 

  • Haas, W.: Analyse der Invasionsmechanismen der Cercarie von Diplostomum spathaceum. II. Chemische Invasionsstimuli. Int. J. Parasit. 4, 321–330 (1974b)

    Google Scholar 

  • Haas, W.: Einfluß von CO2 und pH auf das Fixationsverhalten der Cercarie von Diplostomum spathaceum (Trematoda). Z. Parasitenk. 46, 53–60 (1975)

    Google Scholar 

  • Howells, R.E., Ramalho-Pinto, F.J., Gazzinelli, G., de Oliveira, C.C., Figueiredo, E.A., Pellegrino, J.: Schistosoma mansoni: Mechanism of cercarial tail loss and its significance to host penetration. Exp. Parasit. 36, 373–385 (1974)

    Google Scholar 

  • MacInnis, A.J.: Identification of chemicals triggering cercarial penetration responses of Schistosoma mansoni. Nature (Lond.) 224, 1221–1222 (1969)

    Google Scholar 

  • Shiff, C.J., Cmelik, S.H.W., Ley, H.E., Kriel, R.L.: The influence of human skin lipids on the cercarial penetration responses of Schistosoma haematobium and Schistosoma mansoni. J. Parasit. 58, 476–480 (1972)

    Google Scholar 

  • Stirewalt, M.A.: Skin penetration mechanisms of helminths. In: E. J. L. Soulsby, ed., The biology of parasites, p. 41–59. New York: Academic Press 1966

    Google Scholar 

  • Stirewalt, M.A.: Penetration stimuli for schistosome cercariae. In: T. C. Cheng, ed., Aspects of the biology of symbiosis, p. 1–23. Baltimore: University Park Press 1971

    Google Scholar 

  • Stirewalt, M.A., Uy, A.: Schistosoma mansoni: Cercarial penetration and schistosomule collection in an in vitro system. Exp. Parasit. 26, 17–28 (1969)

    Google Scholar 

  • Valle, C., Pellegrino, J., Gazzinelli, G.: Influence of temperature on the backward propulsion speed of Schistosoma mansoni cercariae. J. Parasit. 60, 372–373 (1974)

    Google Scholar 

  • Wagner, A.: The initiation of penetration of Schistosomatium douthitti cercariae. Diss. Abstr. 20, 3449 (1960)

    Google Scholar 

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Authors and Affiliations

  1. Zoologisches Institut der Universität Würzburg, Germany

    Wilfried Haas

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  1. Wilfried Haas
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Diese Arbeit wurde durch die Deutsche Forschungsgemeinschaft finanziell unterstützt.

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Haas, W. Die Anheftung (Fixation) der Cercarie von Schistosoma mansoni . Z. F. Parasitenkunde 49, 63–72 (1976). https://doi.org/10.1007/BF00445018

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  • DOI: https://doi.org/10.1007/BF00445018

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