Hostname: page-component-7bb8b95d7b-s9k8s Total loading time: 0 Render date: 2024-09-20T04:07:24.090Z Has data issue: false hasContentIssue false
  • English
  • Français

Effects of glucose on survival, infectivity and linear movement of the cercariae of Echinostoma caproni

Published online by Cambridge University Press:  12 April 2024

E.L. Ponder  and
B. Fried
E.L. Ponder
Affiliation:
Department of Biology, Lafayette College, Easton, PA 18042, USA
B. Fried*
Affiliation:
Department of Biology, Lafayette College, Easton, PA 18042, USA
*
*Author for correspondence Fax: (610)330-5705 Email: friedb@lafayette.edu
Get access Rights & Permissions [Opens in a new window]

Abstract

The effects of glucose in artificial spring water (ASW) on the survival, infectivity, and linear movement of Echinostoma caproni cercariae were studied. Cercariae maintained at 23°C in 1% glucose in ASW (ASWG) or ASW alone, reached 50% survival at 26 and 23 h, respectively. All cercariae in ASWG and ASW were dead by 50 and 32 h, respectively. Infectivity to juvenile Helisoma trivolvis (Colorado strain) snails was significantly less for cercariae aged 16 h in ASWG compared to cercariae aged 16 h in ASW. Linear movement, i.e. the ability of cercariae to traverse a 1-cm radius, ceased at 16 and 20 h for cercariae maintained in ASWG and ASW, respectively. Glucose added to ASW extended the survival time of E. caproni cercariae but decreased their ability to infect snails or move in a linear direction.

Type
Research Article
Information
Journal of Helminthology , Volume 78 , Issue 2 , June 2004 , pp. 185 - 187
Copyright
Copyright © Cambridge University Press 2004

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

Fried, B. LaTerra, R. (2002) In vitro and in vivo encystment of the cercariae of Echinostoma caproni . Journal of Parasitology 88: 1124–1129.CrossRefGoogle ScholarPubMed
Fried, B., Eyster, L.S. Pechenik, J.A. (1998) Histochemical glycogen and neutral lipid in Echinostoma trivolvis cercariae and effects of exogenous glucose on cercarial longevity. Journal of Helminthology 72: 83–85.CrossRefGoogle ScholarPubMed
Fried, B., LaTerra, R. Kim, Y. (2002) Effects of exogenous glucose on survival and infectivity of Schistosoma mansoni cercariae. Korean Journal of Parasitology 40: 55–58.CrossRefGoogle ScholarPubMed
Ginetsinskaya, T.A. (1988) Trematodes, their life cycles, biology and evolution. . Amerind, New Delhi.Google Scholar
Haas, W. (2000) The behavioral biology of echinostomes. pp. 175–197 in Fried, B. & Graczyk, T.K. (Eds) Echinostomes as experimental models for biological research. Dordrecht, Kluwer.CrossRefGoogle Scholar
Haas, M.R. Fried, B. (1974) Observations on cephalic glands in Philophthalmus hegeneri . Journal of Parasitology 60: 1041–1043.CrossRefGoogle ScholarPubMed
Meyrowitsch, D., Christensen, N.Ø. Hindsbo, O. (1991) Effects of temperature and host density on the snail-finding capacity of cercariae of Echinostoma caproni (Digenea: Echinostomatidae). Parasitology 102: 391–395.CrossRefGoogle ScholarPubMed
Ulmer, M.J. (1970) Notes on rearing of snails in the laboratory. pp. 143–144 in MacInnis, A.J. & Voge, M. (Eds) Experiments and techniques in parasitology. San Francisco, Freeman.Google Scholar