Microcrustaceans: biological models to evaluate a remediation process of glyphosate-based formulations

Reno, Ulises; Gutiérrez, María Florencia; Longo, Melisa; Vidal, Ezequiel; Regaldo, Luciana; Negro, Antonio Carlos; Mariani, M.; Zalazar, Cristina Susana; Gagnetén, Ana María

doi:10.1007/s11270-015-2616-y

Cited by 10 publications

(3 citation statements)

References 26 publications

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“…Lares et al [34] observed that Faena ® was 12 times more toxic to D. exilis than to Alona guttata. Reno et al [35,36] determined the 48 h LC 50 for D. magna exposed to the four glyphosate-based formulations, Escoba ® , Roundup ® , Ultramax Panzer Gold ® , and Sulfosato Touchdown ® ; the obtained values were 29.48, 11.68, 2.12, and 1.62 mg L −1 , respectively. The differences in the acute toxicity of glyphosate (as Faena ® ) in the present work and the other commercial formulations could be attributed to the active ingredients and the type and concentration of surfactants and other adjuvants used in the different formulations.…”

Section: Discussionmentioning

confidence: 99%

Combined Toxicity of Glyphosate (Faena®) and Copper to the American Cladoceran Daphnia exilis—A Two-Generation Analysis

Hernández-Zamora

Rodríguez-Miguel

Martínez-Jerónimo

et al. 2023

Water

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Glyphosate and copper are common pollutants in water and soil. Glyphosate is the most used herbicide worldwide; despite being claimed to be a low-toxicity pesticide and easily degraded, several studies have demonstrated glyphosate’s occurrence and toxicity in freshwater ecosystems. Copper is an essential micronutrient; however, at high concentrations, it becomes toxic, and it is a persistent contaminant discharged from agricultural and industrial activities. Both glyphosate and Cu are agrochemicals that can occur in aquatic environments and produce stress in aquatic biota. Cladocerans are important zooplankters, and their sensitivity to chemical stressors has been widely documented. In this study, the North American cladoceran Daphnia exilis was exposed to glyphosate (Faena®) and Cu mixtures. The effects were assessed in two generations to determine toxicity impairment in the parental (P1) and filial (F1) generations. The 48 h median lethal concentration (LC50) of both chemicals was determined. After this, the generations P1 and F1 were exposed for 21 days to three concentrations of glyphosate and Cu mixtures (1.04 mg L−1 + 2.45 μg L−1, 1.24 mg L−1 + 3.09 μg L−1, and 1.57 mg L−1 + 4.31 μg L−1), starting from neonates. Survival and reproduction were recorded, and macromolecule content and the size of neonates were measured in the progeny. The LC50 was 4.22 mg L−1 for Faena® and 13.45 μg L−1 for copper. Exposure to glyphosate and copper reduced fecundity and the number of clutches per female, delayed age at first reproduction, and increased the number of aborted eggs; these effects were more evident in the F1 than in the P1. In both generations, the concentration of carbohydrates and lipids was significantly reduced. The treatment and the brood number influenced the total length of neonates, but the total length did not differ significantly, whereas body length and body width decreased in F1. Glyphosate and copper mixtures significantly increased toxicity in D. exilis in the F1 generation, probably because the parents produced impaired progenies. Results warn about transgenerational effects in planktonic species chronically exposed to pollutants.

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Section: Discussionmentioning

confidence: 99%

Combined Toxicity of Glyphosate (Faena®) and Copper to the American Cladoceran Daphnia exilis—A Two-Generation Analysis

Hernández-Zamora

Rodríguez-Miguel

Martínez-Jerónimo

et al. 2023

Water

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“…The guidelines of the protocol proposed by the Organization for Economic Cooperation and Development OECD 202 (2004) were followed. For this, a stock culture of adult D. magna Straus 1820 females obtained from Laboratory of Ecotoxicology from the Facultad de Humanidades y Ciencias, Universidad Nacional del Litoral, Santa Fe, Argentina (Gutierrez et al, 2012; Regaldo, Reno, et al, 2014; Reno et al, 2015, 2016), was prepared in a synthetic culture medium composed of 2.4‐g MgSO 4 , 3.84‐g NaHCO 3 , 0.16‐g KCl, and 2.4‐g CaSO 4 2H 2 O in 20 L of Milli‐Q water (APHA, 1998). The pH was adjusted to 7.5 by adding 1‐M NaOH.…”

Section: Methodsmentioning

confidence: 99%

Toxicity of fluoroquinolones on the cladoceran Daphnia magna

Eluk

Nagel

Gagnetén

et al. 2021

Water Environment Research

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This study evaluates the acute and chronic toxicological effects of six fluoroquinolones on the mortality and growth of Daphnia magna. The NOECs calculated with the multivariate Probit regression model for the chronic study were 56 μg/L ciprofloxacin, 63 μg/L enrofloxacin, 78 μg/L levofloxacin, 85 μg/L marbofloxacin, 69 μg/L norfloxacin, and 141 μg/L ofloxacin. The risk quotients were determined using the measure environmental concentrations reported in water sources from different countries. The risks were low and moderate in water samples from rivers and lakes, although concentrations of ciprofloxacin, norfloxacin, and ofloxacin reported in some countries can cause toxicological damage to D. magna. In addition, urban wastewater and hospital wastewater samples constitute a threat to D. magna (high and moderate risks), requiring the treatment of these wastewater. Practitioner points The NOECs calculated with the multivariate Probit model for the six fluoroquinolonas are between 56 μg/L ciprofloxacin and 141 μg/L ofloxacin. The levels of ciprofloxacin, norfloxacin, and ofloxacin in urban wastewater and hospital wastewater produce moderate and high risks for D. magna. Water and river samples from some countries containing ciprofloxacin, norlfoxacin, and ofloxacin present high risks for D. magna.

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“…Ecotoxicological status of GBHs differs due to the different compositions. Thus, the LC 50 of Eskoba® and Sulfosato Touchdown® for three microcrustacean species varied in the ranges of 14.49÷95.23 mg/L and 0.31÷1.74 mg/L, respectively [6]. Addition of surfactants and other compounds (e.g., polyoxyethyleneamine, 1,4-dioxane) to commercial formulations with GBHs could considerably increase their toxicity [7,8].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Glyphosate Ecotoxicity and Biodegradability in the Municipal Wastewaters

Birsa

Kalneniece

Jansons

et al. 2018

KEM

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Glyphosate (G) is a broad-spectrum systemic organophosphate herbicide being widely used to control weeds in agricultural fields and urban areas. Its safety for both human health and aquatic biomes is a subject of wide debate. This study was aimed at evaluating the removal efficiency and ecotoxicity of G based herbicide (GBH) Klinik® (Nufarm, Austria) added to the raw municipal wastewater (WW) in a lab-scale model column system. The effect of oxide ceramics as a filtering medium (treatment „B”), as well as activated sludge and nutrients (treatment „C”) was compared with the control columns, which contained only WW (treatment „A”). After 72h treatment of WW spiked with 100 mg/L G, the lowest G concentration was detected in the treatment „B”, i.e., 79.4±0.6 mg/L. Treatments „A” and „C” resulted in the remaining G concentrations of 83.3±3.8 and 89.6±3.7 mg/l, respectively. The second addition of 100 mg/L G to the columns followed by 72h incubation also showed the advantage of oxide ceramics. Most probably, this effect could be explained by coupled sorption and biodegradation processes. Experiments were accompanied by microbiological (colony forming units; biological oxygen demand) and ecotoxicological (Daphtoxkit F magna, MicroBioTests) testing. The results indicated that WW-derived microorganisms resist the presence of GBH in the tested concentration range of G, i.e., up to 300 mg/L. As for Daphnia magna, the 24-h EC50 for the GBH Klinik® under standard conditions and in raw WW was found to be 22 mg/L and 6 mg/L G, respectively.

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Microcrustaceans: biological models to evaluate a remediation process of glyphosate-based formulations

Cited by 10 publications

References 26 publications

Combined Toxicity of Glyphosate (Faena®) and Copper to the American Cladoceran Daphnia exilis—A Two-Generation Analysis

Combined Toxicity of Glyphosate (Faena®) and Copper to the American Cladoceran Daphnia exilis—A Two-Generation Analysis

Toxicity of fluoroquinolones on the cladoceran Daphnia magna

Evaluation of Glyphosate Ecotoxicity and Biodegradability in the Municipal Wastewaters

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