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Toxicity testing of pesticides in zebrafish—a systematic review on chemicals and associated toxicological endpoints

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Abstract

The use of zebrafish (Danio rerio) has arisen as a promising biological platform for toxicity testing of pesticides such as herbicides, insecticides, and fungicides. Therefore, it is relevant to assess the use of zebrafish in models of exposure to investigate the diversity of pesticide-associated toxicity endpoints which have been reported. Thus, this review aimed to assess the recent literature on the use of zebrafish in pesticide toxicity studies to capture data on the types of pesticide used, classes of pesticides, and zebrafish life stages associated with toxicity endpoints and phenotypic observations. A total of 352 articles published between September 2012 and May 2019 were curated. The results show an increased trend in the use of zebrafish for testing the toxicity of pesticides, with a great diversity of pesticides (203) and chemical classes (58) with different applications (41) being used. Furthermore, experimental outcomes could be clustered in 13 toxicity endpoints, mainly developmental toxicity, oxidative stress, and neurotoxicity. Organophosphorus, pyrethroid, azole, and triazine were the most studied classes of pesticides and associated with various toxicity endpoints. Studies frequently opted for early life stages (embryos and larvae). Although there is an evident lack of standardization of nomenclatures and phenotypic alterations, the information gathered here highlights associations between (classes of) pesticides and endpoints, which can be used to relate mechanisms of action specific to certain classes of chemicals.

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Abbreviations

AChE:

Acetylcholinesterase

AOP:

Adverse outcome pathway

CAT:

Catalase

DACT:

Diaminochlorotriazine

DDT:

Dichlorodiphenyltrichloroethane

DE:

Deethylatrazine

DIP:

Deisopropylatrazine

EDCs:

Endocrine-disrupting chemicals

EU:

European Union

FET:

Fish Embryo Toxicity Assay

GPx:

Glutathione peroxidase

GST:

Glutathione S-transferase

HC:

High-content

HPA:

Hypothalamic-pituitary-adrenocortical

HPG:

Hypothalamic-pituitary-gonadal

HPT:

Hypothalamic-pituitary-thyroid

HT:

High-throughput

LC50 :

Lethal concentration at which 50% of the population if killed in a given period of time

MS-222:

Tricaine methanesulfonate

NTs:

Neurotransmitters

OECD:

Organisation for Economic Co-operation and Development

OPFRs:

Organophosphate flame retardants

PD:

Parkinson’s disease

POPs:

Persistent organic pollutants

ROS:

Reactive oxygen species

SOD:

Superoxide dismutase

ToxCast™:

EPA’s Toxicity Forecaster

US EPA:

United States Environmental Protection Agency

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Acknowledgments

We thank to Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Brazil, for supporting this research with grants and scholarships, and to Ms. Marta Silva Muniz for contributing with revision of the English manuscript.

Funding

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Brazil, grant number 461182-9.

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Authors and Affiliations

Authors

Contributions

I.F.S.G., T.M.S., L.R.V., F.C.M., A.P.N., and D.F.F. designed and conducted the literature review and wrote the manuscript. All authors approved the submitted version.

Corresponding authors

Correspondence to Terezinha Maria Souza or Davi Felipe Farias.

Ethics declarations

Conflict of interestThe authors declare that they have no conflict of interest.

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Responsible editor: Philippe Garrigues

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Highlights

- The zebrafish is being increasingly used for testing the toxicity of pesticides.

- Thirteen pesticide-associated toxicity endpoints in zebrafish were documented.

- Developmental toxicity was the endpoint most reported across studies.

- Studies greatly opted for early zebrafish life stages (embryos and larvae).

- There is an evident lack of standardization of nomenclatures in zebrafish testing.

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Gonçalves, Í.F.S., Souza, T.M., Vieira, L.R. et al. Toxicity testing of pesticides in zebrafish—a systematic review on chemicals and associated toxicological endpoints. Environ Sci Pollut Res 27, 10185–10204 (2020). https://doi.org/10.1007/s11356-020-07902-5

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  • DOI: https://doi.org/10.1007/s11356-020-07902-5

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