Fundamental Toxicological Sciences

Paper Details

Fundamental Toxicological Sciences
Vol. 8 No. 3 July 27, 2021 p.81-88
Data Report
Movento® 240SC (Spirotetramat) and Envidor® 240SC (Spirodiclofen) keto-enol insecticides induce DNA damage in Drosophila melanogaster ovaries
  • Berenyce González-Marín (Laboratory of Environmental Toxicology, Department of Environmental Sciences, Center of Atmospheric Sciences, National Autonomous University of Mexico)
Berenyce González-Marín , María Elena Calderón-Segura , Ana Karen González Pérez , Luis Gerardo Moreno Ciénega
Laboratory of Environmental Toxicology, Department of Environmental Sciences, Center of Atmospheric Sciences, National Autonomous University of Mexico
Keywords: Movento® 240SC, Envidor® 240SC, Keto-enol insecticides, DNA damage
Abstracts

Movento® 240SC and Envidor® 240SC are new insecticide derivatives of tetramic acid belonging to a keto-enol pesticide family. However, few studies have reported genotoxic effects in nontarget organisms. In the present study, the genotoxic effects of Movento® 240SC and Envidor® 240SC on Drosophila melanogaster ovaries were analyzed using the alkaline comet assay. Simultaneously, we determined the LD50 for both insecticides. Virgin females were exposed to food at three sublethal concentrations (11.2, 22.4, 37.3 mg/L) of Movento® 240SC and (12.3, 24.6, 41.1 mg/L) of Envidor® 240SC for 72 hr. As a negative control group, females were exposed to food without insecticides, and as a positive control group, females were exposed to 17.5 mg/L bleomycin under the same experimental conditions. We analyzed three genotoxic parameters, tail length, tail moment, and tail intensity, in ovarian cells. The results showed that 11.2 mg/L Movento® 240SC insecticide significantly increased the tail intensity mean in ovarian cells compared with the negative control. However, 22.4 and 37.3 mg/L Movento® 240SC significantly increased tail length and tail moment means compared with the negative control. Envidor® 240SC insecticide at 12.3, 24.6, 41.1 mg/L significantly increased the three genotoxic parameters in ovarian cells compared with the negative control. The LD50 values of Movento® 240SC and Envidor® 240SC insecticides were 79.1 mg/L and 78.0 mg/L, respectively. The genotoxic response of the two keto-enol pesticides was dependent on the concentration of each pesticide. The results demonstrated that Movento® 240SC and Envidor® 240SC keto-enol insecticides are genotoxic agents in D. melanogaster ovaries.