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Molluscicidal Activity and Biochemical Interactions of Copper Sulfate against Theba pisana (Müller)

Molluscicidal Activity and Biochemical Interactions of Copper Sulfate against Theba pisana (Müller)

Emtiaz Ibrahim Ghoniem, Gaber Mamdouh Abdelgalil, Amira Farouk Gad* and El-Sayed Hassan Eshra


Department of Animal Pests, Plant Protection Research Institute, Agricultural Research Center, Alexandria, Egypt.

Corresponding author: Amira Farouk Gad


Abstract | The white garden snail, Theba pisana is one of the widely distributed gastropods and is a dangerous agricultural pest for many plants. Copper sulfate (CuSO4) is extensively used for controlling a number of molluscs in many areas. In this study, CuSO4 toxicity indices against T. pisana after 24, 48 and 72 h using the topical application technique were estimated. Additionally, in vivo evaluation of acetylcholinesterase (AChE), alkaline phosphatase (ALP), aspartate aminotransferase (AST) and alanine aminotransferase (ALT) activities in T. pisana intoxicated with two sublethal doses of CuSO4 (0.25 and 0.5 of LD50) after 24, 48 and 72 h were examined. The results indicated that the LD50 values of CuSO4 were 166.5, 92.59 and 70.63 µg/g b.w for 24, 48 and 72 h, respectively. The biochemical effects of CuSO4 led to a significant increment of AChE activities in treated snails after all tested times. While the tested compound inhibited ALP activities in all treated animal groups. AST and ALT activities in treated snails were significantly altered by tested doses of CuSO4. This study suggests that the activity of these enzymes modulation may be one of the biochemical mechanisms of CuSO4 toxicity. 
Novelty Statement | This is the first study to investigate the sub-lethal effects of CuSO4 on biochemical interactions of land snail, Theba pisana. Our findings will contribute to understand the biochemical defects of CuSO4.

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Punjab University Journal of Zoology


Vol.38, Iss. 2, Pages 137-236


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