Assessment of the oxidative and neurotoxic effects of glyphosate pesticide on the larvae of Rhamdia quelen fish

Chemosphere
Thaís Maylin SobjakAna Tereza Bittencourt Guimarães

Abstract

The aim of this work was to investigate the effects of glyphosate on the antioxidant system, as well as the neurotoxic effects on the larvae of Rhamdia quelen. A completely randomized design was implemented with the eggs of silver catfish distributed in 48 containers with 300 mL of water, which were subdivided randomly into two groups: control and treated with 6.5 mg L of glyphosate. These groups were evaluated at four time points (12 h, 24 h, 48 h, and 72 h), each with six replications. The survival rate of eggs/larvae (%) was evaluated, and samples were collected for antioxidant system analysis (catalase - CAT, glutathione transferase - GST, glutathione reductase - GR, and lipoperoxidation - LPO), and neurotoxic evaluation (cholinesterase - ChE). Throughout the 72 h of experimentation, there was a higher survival rate among the animals treated with glyphosate. The highest value of integrated biomarkers response (IBR = 1.26) was at 12 h, presenting induction of the cholinesterase (ChE) enzyme and GR. At 24 h, the value of IBR was -2.56, with inhibition of ChE and induction of GR. At 48 h, the value was -0.76, with induction of LPO. The lowest value of IBR was at 72 h (-4.65), with induction of GST and inhibition of all other b...Continue Reading

Citations

Jan 10, 2018·Environmental Science and Pollution Research International·Emma FiorinoCaterina Faggio
May 30, 2019·Environmental Science and Pollution Research International·Osman Serdar
Jul 23, 2020·Brazilian Journal of Biology = Revista Brasleira De Biologia·G F ShiguemotoG S Yasui
Oct 3, 2020·Integrated Environmental Assessment and Management·Geonildo Rodrigo DisnerMonica Lopes-Ferreira
Nov 24, 2020·Environmental Science and Pollution Research International·Carla Eliana DavicoEvelise Maria Nazari
Nov 5, 2019·Ecotoxicology and Environmental Safety·Nilce Mary Turcatti FolleCiro Alberto de Oliveira Ribeiro
Dec 22, 2019·Ecotoxicology and Environmental Safety·Madson Silveira de MeloEric Gismondi
Apr 2, 2021·Environmental Science and Pollution Research International·Mercedes AcquaroniCristina Pérez Coll
Mar 5, 2019·The Science of the Total Environment·Fernando Garrido de OliveiraHelena Cristina Silva de Assis
Jun 30, 2021·Arhiv za higijenu rada i toksikologiju·Tarek Fakhereddin, Demet Doğan
Aug 22, 2021·Ecotoxicology and Environmental Safety·Yves Moreira RibeiroElizete Rizzo
Dec 6, 2021·The Science of the Total Environment·Audrey CatteauAlain Geffard

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