Toxicities of glyphosate- and cypermethrin-based pesticides are antagonic in the tenspotted livebearer fish ( Cnesterodon decemmaculatus )

Autor: Ana Belén Anglesio, Solène Malpel, María Belén Poliserpi, Julie C. Brodeur, Maria Florencia D'Andrea, Diego Sebastian Cristos
Rok vydání: 2016
Předmět:
Environmental Engineering
Health
Toxicology and Mutagenesis
Glycine
0211 other engineering and technologies
GLYPHOSATE
02 engineering and technology
010501 environmental sciences
Biology
01 natural sciences
Pesticide toxicity
Ciencias de la Tierra y relacionadas con el Medio Ambiente
Cypermethrin
Lethal Dose 50
Toxicology
Cyprinodontiformes
chemistry.chemical_compound
FISH
PESTICIDES
CYPERMETHRIN
Pyrethrins
Animals
Environmental Chemistry
Pesticides
0105 earth and related environmental sciences
021110 strategic
defence & security studies
Public Health
Environmental and Occupational Health
MIXTURES
General Medicine
General Chemistry
Pesticide
Pollution
people.cause_of_death
Cnesterodon decemmaculatus
AMPHIBIAN
chemistry
Larva
Glyphosate
Toxicity
Fish
Meteorología y Ciencias Atmosféricas
Antagonism
people
Water Pollutants
Chemical
CIENCIAS NATURALES Y EXACTAS
Zdroj: Chemosphere. 155:429-435
ISSN: 0045-6535
DOI: 10.1016/j.chemosphere.2016.04.075
Popis: Although pesticide contamination of surface waters normally occurs in the form of mixtures, the toxicity and interactions displayed by such mixtures have been little characterized until now. The present study examined the interactions prevailing in equitoxic and non-equitoxic binary mixtures of formulations of glyphosate (Glifoglex®) and cypermethrin (Glextrin®) to the tenspotted livebearer (Cnesterodon decemmaculatus), a widely distributed South American fish. The following 96h-LC50s were obtained when pesticide formulations were tested individually: Glifoglex® 41.4 and 53 mg ae glyphosate/L; Glextrin® 1.89 and 2.60 g cypermethrin/L. Equitoxic and non-equitoxic mixtures were significantly antagonic in all combinations tested. The magnitude of the antagonism (factor by which toxicity differed from concentration addition) varied between 1.37 and 3.09 times in the different non-equitoxic mixtures tested. Antagonism was due to a strong inhibition of cypermethrin toxicity by the glyphosate formulation, the toxicity of the cypermethrin-based pesticide being almost completely overridden by the glyphosate formulation. Results obtained in the current study with fish are radically opposite to those previously observed in tadpoles where synergy was observed when Glifoglex® and Glextrin® were present in mixtures (Brodeur et al., 2014). Fil: Brodeur, Celine Marie Julie. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigación de Recursos Naturales. Instituto de Recursos Biológicos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Malpel, Solene. Université Paul Sabatier; Francia Fil: Anglesio, Ana Belen. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigación de Recursos Naturales. Instituto de Recursos Biológicos; Argentina Fil: Cristos, Diego Sebastián. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigación de Agroindustria. Instituto de Tecnología de Alimentos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: D'andrea, María Florencia. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigación de Recursos Naturales. Instituto de Recursos Biológicos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Poliserpi, Maria Belen. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigación de Recursos Naturales. Instituto de Recursos Biológicos; Argentina
Databáze: OpenAIRE
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