Abstract
Fipronil is a broad-spectrum insecticide with remarkable efficacy that is widely used to control insect pests around the world. However, its extensive use has led to increasing soil and water contamination. This fact is of concern and makes it necessary to evaluate the risk of undesirable effects on non-target microorganisms, such as the microbial community in water and/or soil. Studies using the metagenomic approach to assess the effects of fipronil on soil microbial communities are scarce. In this context, the present study was conducted to identify microorganisms that can biodegrade fipronil and that could be of great environmental interest. For this purpose, the targeted metabarcoding approach was performed in soil microcosms under two environmental conditions: fipronil exposure and control (without fipronil). After a 35-day soil microcosm period, the 16S ribosomal RNA (rRNA) gene of all samples was sequenced using the ion torrent personal genome machine (PGM) platform. Our study showed the presence of Proteobacteria, Actinobacteria, and Firmicutes in all of the samples; however, the presence of fipronil in the soil samples resulted in a significant increase in the concentration of bacteria from these phyla. The statistical results indicate that some bacterial genera benefited from soil exposure to fipronil, as in the case of bacteria from the genus Thalassobacillus, while others were affected, as in the case of bacteria from the genus Streptomyces. Overall, the results of this study provide a potential contribution of fipronil-degrading bacteria.
Funder
Fundect—Support Foundation for the Development of Education, Science and Technology of the State of Mato Grosso do Sul
CNPq—National Council for Scientific and Technological Development
Subject
Virology,Microbiology (medical),Microbiology
Reference74 articles.
1. Identifying Global Trends and Gaps in Research on Pesticide Fipronil: A Scientometric Review;Vasconcelos;Environ. Sci. Pollut. Res.,2022
2. Lopes-Ferreira, M., Maleski, A.L.A., Balan-Lima, L., Bernardo, J.T.G., Hipolito, L.M., Seni-Silva, A.C., Batista-Filho, J., Falcao, M.A.P., and Lima, C. (2022). Impact of Pesticides on Human Health in the Last Six Years in Brazil. Int. J. Environ. Res. Public Health, 19.
3. Comparative Toxicity of Endosulfan and Fipronil Insecticides: Utilizing in Vivo and in Vitro Data;Silva;J. Med. Toxicol. Clin. Forensic Med.,2016
4. A Review of the Direct and Indirect Effects of Neonicotinoids and Fipronil on Vertebrate Wildlife;Gibbons;Environ. Sci. Pollut. Res.,2015
5. Degradation and Sorption of Fipronil and Atrazine in Latossols with Organic Residues from Sugarcane Crop;Campanari;Ciência Rural,2016
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