Impact of the photosensitizers copper and magnesium chorophyllin on biological and biochemical parameters of Bulinus truncatus snail

Bibliographic Information
Authors: Dokmak H.-A.A.S.; El-Emam M.A.; Mossalem H.S.; El-Tayeb T.A.; Khalil M.T.
Journal: Egyptian Journal of Aquatic Biology and Fisheries
Publisher: Egyptian Society for the Development of Fisheries and Human Health
Publication Date: 1 January 2021
Volume / Issue: Volume 25 / Issue 1
Pages: 525–540
ISSN: 11106131
DOI: 10.21608/EJABF.2021.146539
Scopus: View on Scopus
Document Type: Article
Access: All Open Access; Gold Open Access
Authors and Affiliations
Dokmak H.-A.A.S., Medical Malacology Department, Theodor Bilharz Research Institute, Egypt; El-Emam M.A., Medical Malacology Department, Theodor Bilharz Research Institute, Egypt; Mossalem H.S., Medical Malacology Department, Theodor Bilharz Research Institute, Egypt; El-Tayeb T.A., National Institute for Laser Enhanced Science (NILES), Egypt; Khalil M.T., Faculty of Science, Ain Shams University, Cairo, Egypt
Abstract
Bulinus truncatus snail is the intermediate host of Schistosoma haematobium, which causes serious damage to the urinary system of infected patients. To control it in its rapid interruption and/or elimination of the disease transmission would be efficient. Copper chlorophyllin (Cu-chl) and magnesium chlorophyllin (Mg-chl); two photosensitizers used in several biological applications, were bio-assayed against B. truncatus snails. Mg-chl proved to be more toxic to the snails than Cu-chl; their LC90 values were 516.7 and 668.9 ppm, respectively. The sub lethal concentrations of each photosensitizer significantly suppressed the fecundity (Mx) and reproductive rate (R0) of treated snails, which could be partially attributed to the recorded disturbances in their biochemical parameters. The reduction rates of R0 for snails treated with LC25 Mg-chl and Cu-chl were 83.5% and 50.8%, respectively. Moreover, these photosensitizers exerted marked histological changes in the hermaphrodite gland of treated snails where spermatogonia and oogonia in the gland acini were degenerated, while the connective tissue was disintegrated. Both Mg-chl and Cu-chl exhibited toxic effect on B. truncatus snail and interfered with the biological parameters of it that could negatively interrupt the transmission of S. haemeatobium. Therefore, both chemicals could be considered in the control program of this parasite being cheap and environmentally safe. © 2021, Egyptian Society for the Development of Fisheries and Human Health. All rights reserved.
Keywords
Biochemical parameters; Bulinus truncatus; Copper chlorophyllin; Magnesium chlorophyllin photosensitizers
Citation Information
Scopus Citations: 7
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