Morphological, behavioral and genotoxic effects of glyphosate and 2,4-D mixture in tadpoles of two native species of South American amphibians.

Autor: Pavan FA; Laboratory of Ecology and Conservation, Federal University of Fronteira Sul, Erechim Campus, RS-135 - Km 72, nº 200, Erechim, RS, Brazil. Electronic address: felipe_pavan21@yahoo.com.br., Samojeden CG; Laboratory of Ecology and Conservation, Federal University of Fronteira Sul, Erechim Campus, RS-135 - Km 72, nº 200, Erechim, RS, Brazil. Electronic address: carolsamojeden@hotmail.com., Rutkoski CF; Laboratory of Ecology and Conservation, Federal University of Fronteira Sul, Erechim Campus, RS-135 - Km 72, nº 200, Erechim, RS, Brazil. Electronic address: camilarutkoski@hotmail.com., Folador A; Laboratory of Ecology and Conservation, Federal University of Fronteira Sul, Erechim Campus, RS-135 - Km 72, nº 200, Erechim, RS, Brazil. Electronic address: alexandre_folador@hotmail.com., Da Fré SP; Laboratory of Ecology and Conservation, Federal University of Fronteira Sul, Erechim Campus, RS-135 - Km 72, nº 200, Erechim, RS, Brazil. Electronic address: silvia_dafre@outlook.com., Müller C; Laboratory of Ecology and Conservation, Federal University of Fronteira Sul, Erechim Campus, RS-135 - Km 72, nº 200, Erechim, RS, Brazil. Electronic address: carolinemulleram@gmail.com., Hartmann PA; Laboratory of Ecology and Conservation, Federal University of Fronteira Sul, Erechim Campus, RS-135 - Km 72, nº 200, Erechim, RS, Brazil. Electronic address: hartmann.paulo@gmail.com., Hartmann MT; Laboratory of Ecology and Conservation, Federal University of Fronteira Sul, Erechim Campus, RS-135 - Km 72, nº 200, Erechim, RS, Brazil. Electronic address: marilia.hartmann@gmail.com.
Jazyk: angličtina
Zdroj: Environmental toxicology and pharmacology [Environ Toxicol Pharmacol] 2021 Jul; Vol. 85, pp. 103637. Date of Electronic Publication: 2021 Mar 19.
DOI: 10.1016/j.etap.2021.103637
Abstrakt: Pesticide contamination is an important factor in the global decline of amphibians. The herbicides glyphosate and 2,4-D are the most applied worldwide. These herbicides are often found in surface waters close to agricultural areas. This study aims at evaluating the chronic effects caused by glyphosate + 2,4-D mixture in Boana faber and Leptodactylus latrans tadpoles. The combined solution of the glyphosate and 2,4-D, in 5 different concentrations, was applied for 168 h. Herbicide mixtures did not affect the survival of the exposed tadpoles but growth and swimming activity were altered; besides causing several damages in the mouth and intestine. The erythrocytes showed micronuclei and other nuclear abnormalities. There is an ecological risk in the exposure of tadpoles of B. faber and L. latrans from the mixture of glyphosate + 2,4-D. Therefore, the approach used in this study provides important information on how commonly used pesticides can affect non-target organisms.
(Copyright © 2021 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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