A synergistic bacterial pool decomposes tebuthiuron in soil

Lima, Edivaldo Wilson de; Brunaldi, Bruno Pinheiro; Frias, Yanca Araújo; Moreira, Bruno Rafael de Almeida; Alves, Lucas da Silva; Lopes, Paulo Renato Matos

doi:10.1038/s41598-022-13147-8

Cited by 8 publications

(6 citation statements)

References 29 publications

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“…Native microorganisms from sugarcane's rhizosphere had a synergistic bacterial pool able to produce 90 mg CO 2 day −1 upon the target tebuthiuron at 5 mmol g −1 (Lima et al, 2022). Thus, these authors clearly showed the microbial degradation of tebuthiuron in the rhizosphere soil.…”

Section: Phytoremediation Of 14 C-tebuthiuron In Contaminated Soilmentioning

confidence: 79%

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Peanut and sorghum are excellent phytoremediators of 14C-tebuthiuron in herbicide-contaminated soil

Conciani¹,

Mendes²,

Sousa³

et al. 2023

Advances in Weed Science

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Background: Phytoremediation is a technique used in soils contaminated with residual herbicides, such as tebuthiuron. However, the herbicide presence in the soil and plant matrices are not generally quantified.Objective: This study aimed to select plant species to evaluate the phytoremediation of 14 C-tebuthiuron by showy rattlepod (Crotalaria spectabilis), sorghum (Sorghum bicolor), radish (Raphanus sativus), peanut (Arachis hypogaea), and alfalfa (Medicago sativa) in herbicide-contaminated soil. Methods: The selection of the five herbicide phytoremediation plants was with the application of five rates of tebuthiuron (300, 600, 1,200, 2,400, and 4,800 g a.i. ha -1 ) and compared to a control. Peanuts and sorghum (herbicide-tolerant plants) were sown in soil contaminated with tebuthiuron (600 g a.i. ha -1 ) applied through a working solution containing 17.47 kBq of 14 C-tebuthiuron. The total of herbicide was analyzed in the soil and plant at three phenological stages. Results: Showy rattlepod, radish, and alfalfa were sensitive to the herbicide even at the lowest application rate. Sorghum was tolerant to the herbicide up to 600 g ha -1 with the application of 1,200 g ha -1 , there was 80% injury; peanut was tolerant even at the highest rate (4,800 g ha -1 ) with only 40% injury. Peanut and sorghum were able to phytoremediate the soil, although, peanut was more efficient in decreasing tebuthiuron contamination by 76%, while sorghum reduced at by 45% at 3 rd phenological stage. Conclusions: Thus, both plants can be recommended in succession/ rotation with crops that had tebuthiuron applied from pre-emergence weed control.

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Section: Phytoremediation Of 14 C-tebuthiuron In Contaminated Soilmentioning

confidence: 79%

“…Also, this herbicide has a high persistence in the soil (90% degradation time, DT90 = ~385 and 334 d) (Guimarães et al, 2022). However, bacteria can effectively degrade tebuthiuron in soil (Lima et al, 2022) and seawater (Mercurio et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Peanut and sorghum are excellent phytoremediators of 14C-tebuthiuron in herbicide-contaminated soil

Conciani¹,

Mendes²,

Sousa³

et al. 2023

Advances in Weed Science

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“…As emerging topics, studies on disruptive solutions for the bioremediation of TBT concentrate on plants ( Ferreira et al, 2021 ) and microorganisms ( Lima et al, 2022 ; Nantes et al, 2022 ). They provide significant knowledge about selecting suitable biotechnological models for treating such a pesticide in agricultural soils.…”

Section: Resultsmentioning

confidence: 99%

“…Then we incubated them in a climatic chamber at 25°C ± 2°C, 60% ± 5%, and 12 h photoperiod. We monitored the growth and development of such a bioindicator of residual toxicity for 5 days ( Lima et al, 2022 ). We quantified its percentage germination by visual counting.…”

Section: Methodsmentioning

confidence: 99%

“…One of the most appealing biological strategies to address pressing environmental issues concerning the occurrence of residual TBT in agroecosystems and the surroundings is microbial bioremediation ( Mercurio et al, 2015 ; Mercurio et al, 2016 ). For instance, Lima et al (2022) selected potential TBT-degrading rhizospheric microorganisms from sugarcane-producing areas. Hence, the authors developed a bacterial pool capable of catabolizing the previous herbicide into carbon dioxide (CO 2 ).…”

Section: Introductionmentioning

confidence: 99%

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Mucuna pruriens cannot develop phytoremediation of tebuthiuron in agricultural soil with vinasse: a morphometrical and ecotoxicological analysis

Frias

Lima

Aragão

et al. 2023

Front. Bioeng. Biotechnol.

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Pesticides offer stakeholders cost-effective solutions to control weeds. Nevertheless, such active compounds can manifest as severe environmental pollutants when escaping from agroecosystems into surrounding natural ecosystems, driving the need to remediate them. We, hence, analyzed whether Mucuna pruriens can develop a potential phytoremediator for treating tebuthiuron (TBT) in soil with vinasse. We exposed M. pruriens to microenvironments containing tebuthiuron at 0.5, 1, 1.5, and 2 (standard dose) L ha−1 and vinasse at 75, 150 (industrial recommendation), and 300 m3·ha−1. Experimental units without organic compounds represented controls. We assessed M. pruriens for morphometrical features, such as plant height and stem diameter and shoot/root dry mass, over approximately 60 days. We obtained evidence for M. pruriens not effectively removing tebuthiuron from the terrestrial medium. Such a pesticide developed phytotoxicity, significantly limiting its germination and growth. The higher the dose, the more negatively the tebuthiuron impacted the plant. In addition, introducing vinasse into the system, irrespective of volume, intensified the damage to photosynthetic and non-photosynthetic structures. Equally important, its antagonist action further decreased the production and accumulation of biomass. As M. pruriens could not effectively extract tebuthiuron from the soil, it could allow neither Crotalaria juncea nor Lactuca sativa to grow on synthetic media containing residual pesticide. An atypical performance of such testing (tebuthiuron-sensitive) organisms over independent ecotoxicological bioassays validated inefficient phytoremediation. Hence, M. pruriens could not offer a functional remediative option to treat environmental pollution by tebuthiuron in agroecosystems where vinasse occurs, such as sugarcane-producing areas. Although M. pruriens considered a tebuthiuron phytoremediator as cited in the literature, satisfactory results did not occur in our research due to high concentrations of vinasse in the soil. Therefore, this information requires more specific studies about the influence of high concentrations of organic matter on M. pruriens productivity and phytoremediation performance.

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Microbial bioremediation of pesticides in agricultural soils: an integrative review on natural attenuation, bioaugmentation and biostimulation

Lopes

Cruz

Menezes

et al. 2022

Rev Environ Sci Biotechnol

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A synergistic bacterial pool decomposes tebuthiuron in soil

Cited by 8 publications

References 29 publications

Peanut and sorghum are excellent phytoremediators of 14C-tebuthiuron in herbicide-contaminated soil

Peanut and sorghum are excellent phytoremediators of 14C-tebuthiuron in herbicide-contaminated soil

Mucuna pruriens cannot develop phytoremediation of tebuthiuron in agricultural soil with vinasse: a morphometrical and ecotoxicological analysis

Microbial bioremediation of pesticides in agricultural soils: an integrative review on natural attenuation, bioaugmentation and biostimulation

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