First biochemical and behavioural analysis of the response of the scorpion Urophonius brachycentrus (Thorell: 1876) upon exposure to an organophosphate.

Autor: Garcia CF; Instituto de Investigaciones Bioquímicas de La Plata 'Prof. Dr. Rodolfo R. Brenner' (CONICET-UNLP), La Plata, Provincia de Buenos Aires, Argentina., Ojanguren A; Division de Aracnología, Museo Argentino de Ciencias Naturales 'Bernardino Rivadavia', Buenos Aires, Argentina., Seoane A; Instituto de Genética Veterinaria 'Ingeniero Fernando Noel Dulout' (CONICET-UNLP), Facultad de Cs. Veterinarias, UNLP, La Plata, Provincia de Buenos Aires, Argentina., Iuri H; Division de Aracnología, Museo Argentino de Ciencias Naturales 'Bernardino Rivadavia', Buenos Aires, Argentina., Gambaro R; Instituto de Genética Veterinaria 'Ingeniero Fernando Noel Dulout' (CONICET-UNLP), Facultad de Cs. Veterinarias, UNLP, La Plata, Provincia de Buenos Aires, Argentina., Molina G; Instituto de Investigaciones Bioquímicas de La Plata 'Prof. Dr. Rodolfo R. Brenner' (CONICET-UNLP), La Plata, Provincia de Buenos Aires, Argentina., Laino A; Instituto de Investigaciones Bioquímicas de La Plata 'Prof. Dr. Rodolfo R. Brenner' (CONICET-UNLP), La Plata, Provincia de Buenos Aires, Argentina.
Jazyk: angličtina
Zdroj: Medical and veterinary entomology [Med Vet Entomol] 2024 Sep; Vol. 38 (3), pp. 291-302. Date of Electronic Publication: 2024 Mar 30.
DOI: 10.1111/mve.12716
Abstrakt: Scorpionism is an increasing public health problem in the world. Although no specific methodology or product is currently available for the control of those arachnids, the use of insecticides could be an effective tool. Chlorpyrifos is one of the insecticides used, but to date, whether scorpions recognise surfaces with that insecticide and how it affects their physiology and/or biochemistry is unknown. In the present study, we observed that scorpions recognise surfaces with 0.51 and 8.59 μg/cm 2 of chlorpyrifos and avoid those areas. The 0.51 μg/cm 2 concentration produced a decrease in acetylcholinesterase and an increase in catalase, superoxide dismutase and glutathione S-transferase, whereas the 8.59 μg/cm 2 concentration evoked a decrease in acetylcholinesterase and an increase in catalase and glutathione S-transferase. Using the comet assay, we observed that the insecticide at 0.17, 0.51 and 8.59 μg/cm 2 caused DNA damage. Finally, we found that the insecticide does not generate significant variations in glutathione peroxidase, glutathione reductase, the amount of protein or lipid peroxidation. The present results offer a comprehensive understanding of how scorpions respond, both at the biochemical and behavioural levels, when exposed to insecticides.
(© 2024 Royal Entomological Society.)
Databáze: MEDLINE
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