Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-26T03:01:30.294Z Has data issue: false hasContentIssue false
  • English
  • Français

Schistosoma mansoni: interference with cercarial host-finding by various aquatic organisms

Published online by Cambridge University Press:  05 June 2009

N. Ø. Christensen
N. Ø. Christensen
Affiliation:
Danish Bilharziasis Laboratory, Jaegersborg Allé 1 D, DK-2920 Charlottenlund, Denmark
Get access Rights & Permissions [Opens in a new window]

Abstract

Schistosoma mansoni cercariae labelled with 75Se-methionine were used to study host-finding capacity by determining the radioactivity of exposed mouse “target” tails. Possible interfering effects of some aquatic vertebrates and invertebrates, plants and algae and secretions and excretions of aquatic organisms were examined.

A marked interferent effect due to predatory behaviour was produced by Cyclops strenuus (Copepoda), Daphnia pulex and D. longispina (Cladocera), Notodromas monacha and Cypria ophthalmica (Ostracoda) and Lebistes reticulatus (guppy). Bufo bufo (Amphibia) and Planaria lugubris (Turbellaria) interfered significantly, presumably by secreting cercaricidal toxins. Several other organisms apparently produced no interference. The interferent effect of the plant species Ceratophyllum demersum, Elodea canadensis, Lemna minor, Ranunculus aquaticus, Holcus lanatus (grass) and Botryococcus braunii was particularly pronounced when they were confined to the surface layer of the water. Several other species did not interfere with host-finding.

Type
Research Papers
Information
Journal of Helminthology , Volume 53 , Issue 1 , March 1979 , pp. 7 - 14
Copyright
Copyright © Cambridge University Press 1979

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Chernin, E. (1968) Interference with the capacity of Schistosoma mansoni miracidia to infect the molluscan host. The Journal of Parasitology, 54, 509–516.CrossRefGoogle ScholarPubMed
Chernin, E. and Perlstein, J. M. (1969) Further studies on the interference with the host-finding capacity of Schistosoma mansoni miracidia. The Journal of Parasitology, 55, 500–508.CrossRefGoogle ScholarPubMed
Chernin, E. and Perlstein, J. M. (1971) Protection of snails against miracidia of Schistosoma mansoni by various aquatic invertebrates. The Journal of Parasitology, 57, 217–219.CrossRefGoogle ScholarPubMed
Christensen, N. Ø., (1977) A method for the in vivo labelling of Schistosoma mansoni and S. intercalatum cercariae with radioselenium. Zeitschrift für Parasitenkunde, 54, 275–288.CrossRefGoogle ScholarPubMed
Christensen, N. Ø., Nansen, P. and Frandsen, F. (1976) Molluscs interfering with the capacity of Fasciola hepatica to infect Lymnaea truncatula. Parasitology, 73, 161–167.CrossRefGoogle ScholarPubMed
Christensen, N. Ø., Nansen, P and Frandsen, F. (1977a) Interference with Fasciola hepatica snail finding by various aquatic organisms. Parasitology, 74, 285–290.CrossRefGoogle ScholarPubMed
Christensen, N. Ø., Frandsen, F. and Nansen, P. (1977b) Host-finding capacity of schistosome cercariae: comparative efficiency of methods of mouse infection and a radioisotope assay system. Journal of Helminthology, 51, 105–113.CrossRefGoogle Scholar
DeWitt, W. B. (1965) Effects of temperature on penetration of mice by cercariae of Schistosoma mansoni. American Journal of Tropical Medicine and Hygiene, 14, 579–580.CrossRefGoogle Scholar
Gibson, M. and Warren, K. S. (1970) Capture of Schistosoma mansoni miracidia and cercariae by carnivorous aquatic plants of the genus Utricularia. Bulletin of the World Health Organization, 42, 833–835.Google ScholarPubMed
Knight, W. B., Liard, F., Ritchie, L. S., Pellegrino, J. and Chiriboga, J. (1968) Labelling of Biomphalaria glabrata and cercariae of Schistosoma mansoni with radioselenium. Experimental Parasitology, 22, 309–315.CrossRefGoogle ScholarPubMed
Knight, W. B., Ritchie, L. S., Liard, F. and Chiriboga, J. (1970) Cercariophagic activity of guppy fish (Lebistes reticulatus) detected by cercariae labelled with radioselenium (75Se). American Journal of Tropical Medicine and Hygiene, 19, 620–625.CrossRefGoogle ScholarPubMed
Michelson, E. H. (1964) The protective action of Chaetogaster limnaii on snails exposed to Schistosoma mansoni. The Journal of Parasitology, 50, 441–444.CrossRefGoogle Scholar
Nansen, P., Frandsen, F. and Christensen, N. Ø. (1976) A study on snail location by Fasciola hepatica using radioisotopically labelled miracidia. Parasitology, 72, 163–171.CrossRefGoogle Scholar
Olivier, L. and Stirewalt, M. A. (1952) An efficient method for exposure of mice to cercariae of Schistosoma mansoni. The Journal of Parasitology, 38, 19–23.CrossRefGoogle ScholarPubMed
Pellegrino, J., Maria, M. D. and De Moura, M. F. (1966) Observations on the predatory activity of Lebistes reticulatus (Peters 1859) on cercariae of Schistosoma mansoni. American Journal of Tropical Medicine and Hygiene, 15, 337–341.CrossRefGoogle ScholarPubMed
Radke, M. G., Ritchie, L. S. and Rowan, W. B. (1961) Effects of water velocities on worm burdens of animals exposed to Schistosoma mansoni cercariae released under laboratory and field conditions. Experimental Parasitology, 11, 323–331.CrossRefGoogle ScholarPubMed
Rowan, W. B. (1965) The ecology of schistosome transmission foci. Bulletin of the World Health Organization, 33, 63–71.Google ScholarPubMed
Stirewalt, M. A. and Fregeau, W. A. (1965) Effect of selected experimental conditions on penetration and maturation of Schistosoma mansoni in mice. I. Environmental. Experimental Parasitology, 17, 168–179.CrossRefGoogle ScholarPubMed
Stirewalt, M. A. and Fregeau, W. A. (1968) Effect of selected experimental conditions on penetration and maturation of cercariae of Schistosoma mansoni in mice. II. Parasite-related conditions. Experimental Parasitology, 22, 73–95.CrossRefGoogle ScholarPubMed
Upatham, E. S. (1974a) Studies on the effects of cercarial concentration and length of exposure on the infection of mice by St. Lucian Schistosoma mansoni cercariae in a natural running-water habitat. Parasitology, 68, 155–159.CrossRefGoogle Scholar
Upatham, E. S. (1974b) Dispersion of St. Lucian Schistosoma mansoni cercariae in natural standing and running waters determined by cercaria counts and mouse exposure. Annals of Tropical Medicine and Parasitology, 68, 343–352.CrossRefGoogle ScholarPubMed
Warren, K. S. and Peters, P. A. (1968) Cercariae of Schistosoma mansoni and plants. Attempt to penetrate Phaseolus vulgaris and Hedychium coronarium produces a cercaricide. Nature, 217, 647–648.CrossRefGoogle ScholarPubMed
Webbe, G. (1966) The effect of water velocities on the infection of animals exposed to Schistosoma mansoni cercariae. Annals of tropical Medicine and Parasitology, 60, 78–84.CrossRefGoogle ScholarPubMed