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de Lima EW, Brunaldi BP, Frias YA, de Almeida Moreira BR, da Silva Alves L, Lopes PRM. A synergistic bacterial pool decomposes tebuthiuron in soil. Sci Rep 2022; 12:9225. [PMID: 35655075 PMCID: PMC9163133 DOI: 10.1038/s41598-022-13147-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Accepted: 05/10/2022] [Indexed: 11/09/2022] Open
Abstract
This study aimed to propose an eco-compatible strategy to mitigate the possible environmental contamination caused by tebuthiuron. Therefore, we screened potential tebuthiuron-degrading microorganisms from conventional (CS) and no-till (NTS) systems producing sugarcane. Then, they were bioprospected for their ability of decomposing the target-molecule at 2.48 mmol g-1 and 4.96 mmol g-1 into CO2 via respirometry. Integrating microbiota from CS and NTS into an advantageously synergistic bacterial pool produced the highest specific-growth rate of CO2 of 89.60 mg day-1, so outstripped the other inoculum. The bacterial CN-NTS framework notably stabilized the sigmoidal Gompertz curve on microbial degradation earliest and enabled the seeds of Lactuca sativa to germinate healthiest throughout ecotoxicological bioassay for cross-validation. Our study is preliminary, but timely to provide knowledge of particular relevance to progress in the field's prominence in remediating terrestrial ecosystems where residual tebuthiuron can persist and contaminate. The analytical insights will act as an opening of solutions to develop high-throughput biotechnological strategies for environmental decontamination.
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Affiliation(s)
- Edivaldo Wilson de Lima
- Department of Plant Production, College of Agricultural and Technological Sciences, São Paulo State University (UNESP), Dracena, SP, 17900-000, Brazil
| | - Bruno Pinheiro Brunaldi
- Department of Plant Production, College of Agricultural and Technological Sciences, São Paulo State University (UNESP), Dracena, SP, 17900-000, Brazil
| | - Yanca Araujo Frias
- Department of Plant Production, College of Agricultural and Technological Sciences, São Paulo State University (UNESP), Dracena, SP, 17900-000, Brazil
| | - Bruno Rafael de Almeida Moreira
- Department of Plant Production, College of Agricultural and Technological Sciences, São Paulo State University (UNESP), Dracena, SP, 17900-000, Brazil
| | - Lucas da Silva Alves
- Department of Plant Production, College of Agricultural and Technological Sciences, São Paulo State University (UNESP), Dracena, SP, 17900-000, Brazil
| | - Paulo Renato Matos Lopes
- Department of Plant Production, College of Agricultural and Technological Sciences, São Paulo State University (UNESP), Dracena, SP, 17900-000, Brazil.
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Grott SC, Bitschinski D, Israel NG, Abel G, da Silva SP, Alves TC, Lima D, Bainy ACD, Mattos JJ, da Silva EB, de Albuquerque CAC, de Almeida EA. Influence of temperature on biomarker responses and histology of the liver of American bullfrog tadpoles (Lithobates catesbeianus, Shaw, 1802) exposed to the herbicide Tebuthiuron. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 771:144971. [PMID: 33545471 DOI: 10.1016/j.scitotenv.2021.144971] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 12/17/2020] [Accepted: 12/29/2020] [Indexed: 06/12/2023]
Abstract
Tebuthiuron (TBU) is a phenylurea herbicide that is extensively used in sugarcane fields. Owing to the low degradation rate, high water solubility, and leaching potential, TBU is believed to have harmful effects on aquatic organisms, such as anuran tadpoles. Contaminant effects can be influenced by temperature since increases in temperature are often associated with increased metabolic reactions. In this study, we evaluated the influence of temperature on the negative effects of TBU in bullfrog tadpoles (Lithobates catesbeianus) through a multi-biomarker approach. Tadpoles were exposed to 0 (control) 10, 50, and 200 ng L-1 of TBU for 16 days at 25 and 32 °C. TBU increased the transcript levels of genes involved in biotransformation (glutathione S-transferase, GST, and sulfotransferase, SULT) and antioxidant (superoxide dismutase, SOD, and catalase, CAT) enzymes. TBU exposure also increased CAT and glutathione peroxidase (GPx) activities, whereas SOD and carboxylesterase activities were decreased. The highest temperature caused a decrease in the activities of ethoxyresorufin-O-deethylase and SOD but increased the activities of GST, GPx, glucose 6-phosphate dehydrogenase, and acetylcholinesterase. No effects of temperature or TBU exposure were observed in genotoxic markers (frequencies of micronucleous and nuclear abnormalities) or in lipid peroxidation levels. Tadpoles exposed to TBU at all tested concentrations presented a higher index of biomarker responses than that of the control groups. Higher values of severity scores from histological analyses were found in the liver of tadpoles exposed to 50 and 200 ng L-1 of TBU at 32 °C compared with those of the control group at the same temperature. These results indicate that TBU and temperature increases are able to disturb the metabolic homeostasis of L. catesbeianus tadpoles after 16 days of exposure, causing substantial alterations in biomarker responses and liver morphology.
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Affiliation(s)
- Suelen Cristina Grott
- Environmental Engineering Post-Graduation Program, University of Blumenau, Blumenau, SC, Brazil
| | - Daiane Bitschinski
- Department of Natural Science, University of Blumenau, Blumenau, SC, Brazil
| | | | - Gustavo Abel
- Environmental Engineering Post-Graduation Program, University of Blumenau, Blumenau, SC, Brazil; Department of Natural Science, University of Blumenau, Blumenau, SC, Brazil
| | | | - Thiago Caique Alves
- Environmental Engineering Post-Graduation Program, University of Blumenau, Blumenau, SC, Brazil
| | - Daína Lima
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry, Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Afonso Celso Dias Bainy
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry, Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Jacó Joaquim Mattos
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry, Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
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de Almeida MD, Pereira TSB, Batlouni SR, Boscolo CNP, de Almeida EA. Estrogenic and anti-androgenic effects of the herbicide tebuthiuron in male Nile tilapia (Oreochromis niloticus). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2018; 194:86-93. [PMID: 29169052 DOI: 10.1016/j.aquatox.2017.11.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 11/11/2017] [Accepted: 11/13/2017] [Indexed: 06/07/2023]
Abstract
Tebuthiuron is a phenylurea herbicide widely used in agriculture that can reach the aquatic environments, possibly posing negative effects to the aquatic biota. Phenylurea herbicides, such as diuron, are known to cause estrogenic and anti-androgenic effects in fish, but no such effects were yet reported for tebuthiuron exposure. Thus, the aim of this study was to evaluate if tebuthiuron, at environmentally relevant concentrations (100 and 200ng/L) and after 25days of exposure have estrogenic and/or anti-androgenic effects on male of Nile tilapia (Oreochromis niloticus), through the evaluation of plasmatic testosterone (T) and estradiol (E2) levels, brain aromatase (CYP19) levels (western-blot), and by evaluating the histology of the testicles. When compared to the control group, plasmatic T levels decreased about 76% in the animals exposed to 200ng/L of tebuthiuron, while E2 levels increased about 94%, which could be related to a significant increase (77%) in CYP19A1 levels, an enzyme that catalyzes the conversion of androgens into estrogens. Histological analyses of the testicles also demonstrated that tebuthiuron at both tested concentrations caused a decrease in the diameter of the seminiferous tubules and in the diameter of the lumen. Therefore, the gonadosomatic index (GSI) was reduced by 36% % in the animals exposed 200ng/L to tebuthiuron. Indeed, the relative frequency of spermatocytes and spermatids increased respectively 73% (200ng/L) and 61% (100ng/L) in the tebuthiuron exposed animals, possibly due to the impairment of sperm release into the lumen, that was decreased 93% (200ng/L) in the treated animals compared to the control. These results confirm that tebuthiuron causes estrogenic and anti-androgenic effects in Nile tilapias at environmentally relevant concentrations.
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Affiliation(s)
- Milena Devechi de Almeida
- Department of Chemistry and Environmental Science, Universidade Estadual Paulista (IBILCE/UNESP), Rua Critóvão Colombo, 2265, CEP-15054-000, São José do Rio Preto, SP, Brazil
| | - Thiago Scremin Boscolo Pereira
- Rio Preto Universitary Center, UNIRP, Rua Ivete Gabriel Atique, 45, CEP-15025-400, São José do Rio Preto, SP, Brazil; Medical School of São José do Rio Preto, FACERES, Av. Anísio Haddad 6751, CEP-15090-305, São José do Rio Preto, SP, Brazil
| | - Sergio Ricardo Batlouni
- Department of Aquaculture, Universidade Estadual Paulista (CAUNESP), Via de Acesso Prof. Paulo Donato Castelane, s/n. CEP-14884-900, Jaboticabal, SP, Brazil
| | - Camila Nomura Pereira Boscolo
- Rio Preto Universitary Center, UNIRP, Rua Ivete Gabriel Atique, 45, CEP-15025-400, São José do Rio Preto, SP, Brazil
| | - Eduardo Alves de Almeida
- Department of Natural Sciences, FundaçãoUniversidade Regional de Blumenau, FURB, Av. Antonio da Veiga 140, Itoupava Seca, CEP-89030-903, Blumenau, Santa Catarina, Brazil.
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