Molluscicidal, histopathological and genotoxic effects of Scenedesmus obliquus and Spirulina platensis extracts and their biosynthesized zinc oxide nanoparticles on Biomphalaria alexandrina snails

Bibliographic Information
Authors: Saleh H.A.; Matter I.A.; Abdel-Wareth M.T.A.; Darwesh O.M.
Journal: Aquaculture Research
Publisher: John Wiley and Sons Inc
Publication Date: 24 April 2022
Volume / Issue: Volume 53 / Issue 10
Pages: 3680–3695
ISSN: 1355557X
DOI: 10.1111/are.15872
Scopus: View on Scopus
Document Type: Article
Authors and Affiliations
Saleh H.A., Environmental Research and Medical Malacology Division, Theodor Bilharz Research Institute, Giza, Egypt; Matter I.A., Agricultural Microbiology Department, National Research Centre, Giza, Egypt; Abdel-Wareth M.T.A., Environmental Research and Medical Malacology Division, Theodor Bilharz Research Institute, Giza, Egypt; Darwesh O.M., Agricultural Microbiology Department, National Research Centre, Giza, Egypt
Abstract
Searching for molluscicidal agents of biological origin is mandatory to avoid the drawbacks of using chemical molluscicides. Algae are good candidates as sources of compounds with molluscicidal properties, especially if they are combined with modern techniques such as nanotechnology. This study aimed to evaluate the molluscicidal activity of two algal extracts and their biosynthesized zinc oxide nanoparticles (ZnONPs) on Biomphalaria alexandrina snails. The results indicated that the lowest LC50 was that of Spirulina platensis extract followed by Scenedesmus obliquus extract. Subchronic experiments were conducted for 2 weeks to indicate the effect of LCo of S. obliquus and S. platensis extracts, and 1/4 LCo of ZnONPs synthesized by S. obliquus and that synthesized by S. platensis. Histopathological alterations were observed in the digestive and hermaphrodite glands of treated snails. Also, random amplified polymorphic DNA-polymerase chain reaction indicated genotoxic effects in the DNA of treated snails, as 1/4 LCo of ZnONPs synthesized by S. obliquus was the most effective treatment. The toxicity assay using Artemia salina indicated that the effective concentrations on B. alexandrina snails were safe on other non-target organisms. © 2022 John Wiley & Sons Ltd.
Keywords
Biomphalaria alexandrina; digestive gland; hermaphrodite gland; Scenedesmus obliquus; Spirulina platensis; ZnO nanoparticles; hermaphrodite; histopathology; microalga; mollusc; nanotechnology; plant extract
Citation Information
Scopus Citations: 12
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