Locomotion behavior testing as a complementary tool in Collembola avoidance assays with neurotoxic insecticides.

Autor: Bandeira FO; Laboratory of Environmental Toxicology, Department of Sanitary and Environmental Engineering, Federal University of Santa Catarina, Florianópolis, SC, 88040-970, Brazil., Tina JK; Laboratory of Soil Ecotoxicology, Federal University of Fronteira Sul, Av. Fernando Machado 108 E, Chapecó, SC, 89802112, Brazil., Alves PRL; Laboratory of Soil Ecotoxicology, Federal University of Fronteira Sul, Av. Fernando Machado 108 E, Chapecó, SC, 89802112, Brazil. paulo.alves@uffs.edu.br., Vaz VP; Laboratory of Environmental Toxicology, Department of Sanitary and Environmental Engineering, Federal University of Santa Catarina, Florianópolis, SC, 88040-970, Brazil.; Ecotoxicology of Aquatic Microorganisms Laboratory-GRIL-EcotoQ-TOXEN, Department of Biological Sciences, University of Quebec at Montreal, Succ. Centre-Ville, Montréal, QC, H3C 3P8, Canada., Puerari RC; Laboratory of Environmental Toxicology, Department of Sanitary and Environmental Engineering, Federal University of Santa Catarina, Florianópolis, SC, 88040-970, Brazil., Juneau P; Ecotoxicology of Aquatic Microorganisms Laboratory-GRIL-EcotoQ-TOXEN, Department of Biological Sciences, University of Quebec at Montreal, Succ. Centre-Ville, Montréal, QC, H3C 3P8, Canada., Dewez D; Laboratory of Environmental & Analytical Biochemistry of Contaminants, Department of Chemistry, University of Quebec at Montreal, CP 8888, Succ. Centre-Ville, Montréal, QC, H3C 3P8, Canada., Matias WG; Laboratory of Environmental Toxicology, Department of Sanitary and Environmental Engineering, Federal University of Santa Catarina, Florianópolis, SC, 88040-970, Brazil.
Jazyk: angličtina
Zdroj: Environmental science and pollution research international [Environ Sci Pollut Res Int] 2023 Dec; Vol. 30 (59), pp. 124374-124381. Date of Electronic Publication: 2023 Nov 10.
DOI: 10.1007/s11356-023-30750-y
Abstrakt: This study aimed (1) to assess the ability of collembolans Folsomia candida to avoid soils contaminated with three seed dressing insecticides imidacloprid, clothianidin, and fipronil; (2) to assess the effects of the insecticides on collembolans' locomotion behavior; (3) to check if changes in the locomotion behavior would explain the avoidance/preference responses; and (4) to evaluate the possibility to use locomotion behavior as toxicity biomarker of the tested insecticides. Avoidance and locomotion behavior assays with collembolans F. candida were performed with commercial seed dressing formulations of three insecticides (imidacloprid, clothianidin, and fipronil). Results showed no avoidance behavior at any concentration, while a "preference" was observed with increasing concentrations of the three tested insecticides. Significant reductions in the locomotion of exposed collembolans were observed at ≥ 1 mg kg -1 for imidacloprid (18-38%) and fipronil (29-58%) and ≥ 4 mg kg -1 for clothianidin (10-47%). At the higher insecticide concentrations, the collembolans had their trajectories restricted to smaller areas, with a tendency for circular movements. Our results confirm that the "preference" for contaminated soils with neurotoxic substances is likely due to locomotion inhibition impairing the ability of organisms to escape. This effect highlights that only avoidance assays may be not sufficient to assure the safety of some substances and confirm the potential of locomotion behavior as a sensitive toxicity biomarker for neurotoxic insecticides.
(© 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
Databáze: MEDLINE
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