Toxicology and Environmental Health Sciences

, Volume 4, Issue 2, pp 109–114

Effect of Cestrum diurnum and Casimiroa edulis plants on the digestive gland and its related enzymes in the freshwater snail Biomphalaria alexandrina

Authors

  • Abdel-Halim A. Saad
    • Department of Zoology, Faculty of ScienceAin Shams University
  • Reda H. Aly
    • Department of Zoology, Faculty of ScienceAin Shams University
  • Fawzy M. A. Ragab
    • Department of Environmental Research and Medical MalacologyTheodor Bilharz Research Institute
    • Department of Environmental Research and Medical MalacologyTheodor Bilharz Research Institute
Research Article

DOI: 10.1007/s13530-012-0124-7

Cite this article as:
Saad, A.A., Aly, R.H., Ragab, F.M.A. et al. Toxicol. Environ. Health Sci. (2012) 4: 109. doi:10.1007/s13530-012-0124-7

Abstract

Biomphalaria alexandrina snails play a central role in transmission of schistosomiasis. The present study evaluates the molluscicidal effect of two plants as aqueous suspensions, Cestrum diurnum and Casimiroa edulis. LC50 values were 66 and 195 ppm, respectively after 24 hours. Exposure of snails to sub-lethal concentrations of C. diurnum and C. edulis resulted in significant alterations in the activities of some haemolymph enzymes (alanine aminotransferase, aspartate aminotransferase and alkaline phosphatase). The digestive gland cells were highly vacuolated in all tested concentrations. The secretory cells were atrophied and degenerated at LC25 of C. diurnum, while in snails treated with LC0 of C. edulis; they were densely colored without differentiation between nucleus and nucleolus.

Keywords

Freshwater snailBiomphalaria alexandrinaCestrum diurnumCasimiroa edulisDigestive gland
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Copyright information

© Korean Society of Environmental Risk Assessment and Health Science and Springer 2012