Multiple Level Effects of Imazethapyr on Leptodactylus latinasus (Anura) Adult Frogs

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Autor(es): dc.contributorUniversidad Nacional de La Plata-
Autor(es): dc.contributorUniversidad Nacional de San Luis-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Federal de Mato Grosso do Sul (UFMS)-
Autor(es): dc.contributorInstituto Nacional de Tecnología Agropecuaria (INTA)-
Autor(es): dc.creatorPérez-Iglesias, J. M.-
Autor(es): dc.creatorFanali, L. Z.-
Autor(es): dc.creatorFranco-Belussi, L.-
Autor(es): dc.creatorNatale, G. S.-
Autor(es): dc.creatorDe oliveira, C.-
Autor(es): dc.creatorBrodeur, J. C.-
Autor(es): dc.creatorLarramendy, M. L.-
Data de aceite: dc.date.accessioned2025-08-21T21:41:45Z-
Data de disponibilização: dc.date.available2025-08-21T21:41:45Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2021-10-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s00244-021-00880-w-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/229368-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/229368-
Descrição: dc.descriptionImazethapyr is an herbicide that is used in a variety of crops worldwide, including soybean and corn. The aim of the present study was to evaluate the biomarkers responses of adult Leptodactylus latinasus exposed to the formulation Pivot® H (10.59% imazethapyr) in the laboratory at concentrations and under conditions that simulate two potential field exposure scenarios: an immersion in field runoff (Scenario 1: 10 mg/L) and a direct exposure to the droplets emitted by spray noozles (Scenario 2: 1000 mg/L). In both scenarios, the experimental procedure involved completely immersing the frogs over a period of 15 s. Different endpoints were evaluated at several ecotoxicological levels 48 and 96 h after the herbicide exposure. These included individual (biometric indices and behavior alterations), histological (liver pigments and lesions), biochemical (catalase, glutathione system and cholinesterase activities) and genotoxic effects (micronuclei induction and nuclear abnormalities). Forty-eight hours after imazethapyr exposure, frogs submitted to Scenario 1 presented an inhibition of liver glutathione-S-transferase activity, whereas histological alterations and increased hepatic cholinesterase levels were observed in frogs exposed under Scenario 2. Ninety-six hours after exposure to the imazethapyr formulation, frogs from the Scenario 1 treatment presented a decrease in liver melanin and hemosiderin, increased hepatic catalase activity and micronuclei induction. For their part, frogs exposed to Scenario 2 presented a decrease in the hepatosomatic index, an increase in liver alterations, melanin reduction and micronuclei induction. The multivariate analysis enables correlations to be made between biomarkers of different organizational level in exposed anurans. Our result indicates that real exposure to imazethapyr formulations under field conditions may pose a risk to Leptodactylus latinasus populations living in the agroecosystems.-
Descrição: dc.descriptionCentro de Investigaciones del Medio Ambiente (CIM) CONICET Facultad de Ciencias Exactas Universidad Nacional de La Plata, Calle 47 y 115-
Descrição: dc.descriptionCátedra de Citología Facultad de Ciencias Naturales y Museo CONICET Universidad Nacional de La Plata, Calle 64 Nº 3-
Descrição: dc.descriptionInstituto de Química de San Luis CONICET Facultad de Química Bioquímica y Farmacia Universidad Nacional de San Luis, Ejército de los Andes 950-
Descrição: dc.descriptionDepartamento de Biologia Universidade Estadual Paulista IBILCE-UNESP, Rua Cristóvão Colombo, 2265, Jardim Nazareth-
Descrição: dc.descriptionLaboratório de Patologia Experimental (LAPEx) Instituto de Biociências (INBIO) Universidade Federal de Mato Grosso do Sul UFMS-
Descrição: dc.descriptionInstituto de Recursos Biológicos Centro de Investigaciones de Recursos Naturales (CIRN) CONICET Instituto Nacional de Tecnología Agropecuaria (INTA)-
Descrição: dc.descriptionDepartamento de Biologia Universidade Estadual Paulista IBILCE-UNESP, Rua Cristóvão Colombo, 2265, Jardim Nazareth-
Formato: dc.format492-506-
Idioma: dc.languageen-
Relação: dc.relationArchives of Environmental Contamination and Toxicology-
???dc.source???: dc.sourceScopus-
Título: dc.titleMultiple Level Effects of Imazethapyr on Leptodactylus latinasus (Anura) Adult Frogs-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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