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Abstract:

The genotoxicity of pesticides is an issue of worldwide concern. The present study was undertaken to evaluate the genotoxic potential of a widely used herbicide formulation, Roundup® (glyphosate), in erythrocytes of broad-snouted caiman (Caiman latirostris) after in ovo exposure. Caiman embryos were exposed at early embryonic stage to different sub-lethal concentrations of Roundup® (50, 100, 200, 300, 400, 500, 750, 1000, 1250 and 1750 μg/egg). At time of hatching, blood samples were obtained from each animal and two short-term tests, the Comet assay and the Micronucleus (MN) test, were performed on erythrocytes to assess DNA damage. A significant increase in DNA damage was observed at a concentration of 500 μg/egg or higher, compared to untreated control animals (p < 0.05). Results from both the Comet assay and the MN test revealed a concentration-dependent effect. This study demonstrated adverse effects of Roundup® on DNA of C. latirostris and confirmed that the Comet assay and the MN test applied on caiman erythrocytes are useful tools in determining potential genotoxicity of pesticides. The identification of sentinel species as well as sensitive biomarkers among the natural biota is imperative to thoroughly evaluate genetic damage, which has significant consequences for short- and long-term survival of the natural species. © 2008 Elsevier B.V. All rights reserved.

Registro:

Documento: Artículo
Título:Genotoxicity of the herbicide formulation Roundup® (glyphosate) in broad-snouted caiman (Caiman latirostris) evidenced by the Comet assay and the Micronucleus test
Autor:Poletta, G.L.; Larriera, A.; Kleinsorge, E.; Mudry, M.D.
Filiación:Proyecto Yacaré (Gobierno Santa Fe/MUPCN), A. del Valle 8700, CP: 3000 Santa Fe, Argentina
Cát. de Toxicol., Farm. y Bioq. Legal, Fac. Bioq. y Cs. Biol., Santa Fe, Argentina
Grupo de Inv. en Biol. Evol. (GIBE), Fac. Cs. Exactas y Naturales, UBA, Buenos Aires, Argentina
Cat. Manejo de Flora y Fauna Silvestre, Fac. Hum. y Cs., UNL, Santa Fe, Argentina
Palabras clave:Caiman latirostris; Comet assay; Glyphosate formulations; Micronucleous test; Pesticides; DNA; glyphosate; alligator; animal cell; article; blood sampling; caiman latirostris; comet assay; controlled study; DNA damage; embryo; erythrocyte; genotoxicity; hatching; micronucleus test; nonhuman; priority journal; Alligators and Crocodiles; Animals; Comet Assay; DNA Damage; Erythrocytes; Glycine; Herbicides; Micronucleus Tests; Animalia; Caiman; Caiman latirostris; Spondias purpurea
Año:2009
Volumen:672
Número:2
Página de inicio:95
Página de fin:102
DOI: http://dx.doi.org/10.1016/j.mrgentox.2008.10.007
Título revista:Mutation Research - Genetic Toxicology and Environmental Mutagenesis
Título revista abreviado:Mutat. Res. Genet. Toxicol. Environ. Mutagen.
ISSN:13835718
CODEN:MRGMF
CAS:DNA, 9007-49-2; glyphosate, 1071-83-6; Glycine, 56-40-6; glyphosate, 1071-83-6; Herbicides
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13835718_v672_n2_p95_Poletta

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Citas:

---------- APA ----------
Poletta, G.L., Larriera, A., Kleinsorge, E. & Mudry, M.D. (2009) . Genotoxicity of the herbicide formulation Roundup® (glyphosate) in broad-snouted caiman (Caiman latirostris) evidenced by the Comet assay and the Micronucleus test. Mutation Research - Genetic Toxicology and Environmental Mutagenesis, 672(2), 95-102.
http://dx.doi.org/10.1016/j.mrgentox.2008.10.007
---------- CHICAGO ----------
Poletta, G.L., Larriera, A., Kleinsorge, E., Mudry, M.D. "Genotoxicity of the herbicide formulation Roundup® (glyphosate) in broad-snouted caiman (Caiman latirostris) evidenced by the Comet assay and the Micronucleus test" . Mutation Research - Genetic Toxicology and Environmental Mutagenesis 672, no. 2 (2009) : 95-102.
http://dx.doi.org/10.1016/j.mrgentox.2008.10.007
---------- MLA ----------
Poletta, G.L., Larriera, A., Kleinsorge, E., Mudry, M.D. "Genotoxicity of the herbicide formulation Roundup® (glyphosate) in broad-snouted caiman (Caiman latirostris) evidenced by the Comet assay and the Micronucleus test" . Mutation Research - Genetic Toxicology and Environmental Mutagenesis, vol. 672, no. 2, 2009, pp. 95-102.
http://dx.doi.org/10.1016/j.mrgentox.2008.10.007
---------- VANCOUVER ----------
Poletta, G.L., Larriera, A., Kleinsorge, E., Mudry, M.D. Genotoxicity of the herbicide formulation Roundup® (glyphosate) in broad-snouted caiman (Caiman latirostris) evidenced by the Comet assay and the Micronucleus test. Mutat. Res. Genet. Toxicol. Environ. Mutagen. 2009;672(2):95-102.
http://dx.doi.org/10.1016/j.mrgentox.2008.10.007