Avaliação da toxicidade de herbicidas usados em cana-de-açúcar para o Paulistinha (Danio rerio)

Tesolin, Gabrielli Aparecida Sanches; Marson, Marina Menezes; Jonsson, Cláudio Martín; Nogueira, António J.A.; Franco, Daniel Andrade de Siqueira; Almeida, S.D.B.; Matallo, Marcus Barifouse; Moura, M. A. M.

doi:10.15343/0104-7809.20143801086097

Cited by 6 publications

(5 citation statements)

References 8 publications

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“…According to the classification of Zucker (1985), AMT showed moderately toxicity to tilapia, while DIU+HZN was slightly toxic and TBUT was practically non-toxic. Tesolin et al (2014) working with zebrafish (Danio rerio) embryos exposed to the herbicides AMT and (DIU+HZN) determined the LC 50 ;96h values as, 53.23 ± 3.25 mg L -1 and 37.45 ± 1.741 mg L -1 , respectively. In the present work we observed that tilapia was more sensitive than D. rerio in which both herbicides were slightly toxic.…”

Section: Resultsmentioning

confidence: 99%

“…The herbicide diuron revealed a genotoxic potential to Danio rerio, another tropical species, at realistic environmental concentrations (4.3 nM or 1.00233 mg L -1 ) (Bony et al, 2010). In relation to ametryn, Tesolin et al (2014) evaluated the toxicity of the commercial formulation Gesapax 500® (500g L -1 of active ingredient) to D. rerio and concluded that the herbicide was moderately toxic.…”

Section: Introductionmentioning

confidence: 99%

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Acute Toxicity of Mixture of Sugarcane Herbicides to Tilapia Fingerlings

Moura

Jonsson

2024

Ecotoxicol. Environ. Contam.

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Sugarcane cultivation is the most important agricultural activity in the State of São Paulo, which is responsible for over half of Brazilian production of the crop. Eutrophication and contamination of hydric resources caused by agricultural chemicals are major problems related to this crop. In the case of herbicides used to control weeds, aquatic organisms can be exposed to more than one toxic agent, and combinations of such pollutants can have different effects on biological systems. The aim of this work was to evaluate the toxic effects of mixtures of herbicides widely used in sugarcane cultivation, namely tebuthiuron (TBUT), ametryn (AMT), and Velpar K (a commercial mixture of diuron (DIU) and hexazinone (HZN)), to tilapia (Oreochromis niloticus) fingerling. The herbicides showed low to moderate toxicity and AMT was notably more toxic then TBUT and DIU+HZN. The mixtures were found to be moderately toxic to the tilapia fingerling (LC 50 ;96h were: TBUT+AMT: 10.76 mg L -1 ; (DIU+HZN)+TBUT: 43.09 mg L -1 ; and (DIU+HZN)+TBUT+AMT: 11.90 mg L -1 ), and a slight antagonism was observed between the components tested. These findings could contribute to the establishment of maximum permissible levels for the herbicides in Brazilian continental water bodies.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Acute Toxicity of Mixture of Sugarcane Herbicides to Tilapia Fingerlings

Moura

Jonsson

2024

Ecotoxicol. Environ. Contam.

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“…The observed deformities were: pericardium oedema, oedema of the yolk sac and a spine deformity showns in figure 5. Such deformities were observed by several authors who studied the toxicity of drugs and some metals: Akande et al (2010); Li et al (2017); Oliveira et al (2009); Oliveira et al (2013); Tesolin et al (2014); Tokunaga et al (2016). All deformations were statistically different from the controls.…”

Section: Short-term Chronic Ecotoxicity Test With Fish Larvaementioning

confidence: 69%

“…Oedema has been one of the malformations most observed in toxicity studies with Danio rerio (Tesolin et al, 2014). The presence of pericardial oedema is due to cardiac dysfunction, functioning as an indicator of osmotic or metabolic dysfunction, frequently associated with extravasations of the endothelial vessels (Dejana et al, 2009;Hallare et al, 2005;Ali et al, 2014) or it is due to renal dysfunction, since the regulation system depends on renal involvement (Coelho, 2004).…”

Section: Short-term Chronic Ecotoxicity Test With Fish Larvaementioning

confidence: 99%

Evaluation of resveratrol toxicity in the embryolarval stage of Danio rerio fish

Cavalcante¹,

Lopes-Ferreira²,

Rogero³

et al. 2024

Ecotoxicol. Environ. Contam.

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Human beings concern about healthy life has driven researchers to study new compounds capable of reaching that desire. Resveratrol (3, 4 ', 5-trihydroxystilbene) a phenolic compound, is one of these substances which presents a variety of pharmacological actions, as antioxidant potential, anti-inflammatory capacity, protection against heart and cancer diseases. Despite the resveratrol health benefits studies, there is a little evidence of its toxicity in the literature in aquatic organisms, and especially the data on the concentration of resveratrol in the environment, making the present study fundamental for information about resveratrol ecotoxicity in the aquatic system. The aim of this study was to evaluate the toxicity of resveratrol in embryos and larvae of Danio rerio (zebrafish). The in vitro cytotoxicity and ecotoxicity assays were performed. The IC 50 obtained in the NCTC-L929 cell line cytotoxicity assay was 38.5 mg L-1. The LC 50 (96h) obtained in fish embryo toxicity test was 75.3 mg L-1 and the mean value of resveratrol LC 50 (168h) obtained in the short-term chronic ecotoxicity assays performed with zebrafish larvae was 51.4 mg L-1. This work provided data on the toxicity of resveratrol in the embryonic stage of fish of the species Danio rerio and the toxic effects are dependent on its concentration.

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“…It is a filtering organism that feeds on algae, rotifers and infusoria, and plays an important role in the food chain. In addition, its easy cultivation and rapid reproduction make this organism viable for acute and subchronic toxicity experiments (TKACZYK et al 2021;CROA CLUB DE ACUARISMO, 2022) Danio rerio, better known as zebrafish or paulistinha, it is a freshwater fish with approximately five centimeters when adult, with transparent embryos, used in research mainly because it presents an easily observable and testable development (TESOLIN et al, 2014).…”

Section: Introductionmentioning

confidence: 99%