Biotransformation of metribuzin under various electron acceptor conditions

Phillips, Thomas W.; Boopathy, Raj

doi:10.1002/tqem.21874

Cited by 3 publications

(2 citation statements)

References 36 publications

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“…The adsorption behavior and mechanism may be better understood by employing operational parameters, kinetics, and isotherm models, as described in this article. Phillips and Boopathy (2022) investigated metribuzin degradation by various bacterial consortia developed from a sludge collected from a sewage treatment plant. Results showed metribuzin was removed significantly under mixed electron acceptor condition when glucose served as a co‐substrate followed by sulfate reducing and nitrate reducing conditions.…”

Section: Waste Water Treatmentmentioning

confidence: 99%

Developing green technologies for environmental sustainability and quality

Syafiuddin

Mehmood

Boopathy

2022

Environmental Quality Mgmt

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Section: Waste Water Treatmentmentioning

confidence: 99%

Developing green technologies for environmental sustainability and quality

Syafiuddin

Mehmood

Boopathy

2022

Environmental Quality Mgmt

Self Cite

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“…Metribuzin is a photosystem II inhibitor, used for broad and grass weed control in some crop systems, such as sugarcane, soybean, wheat, and corn [ 24 , 25 ]. These agricultural systems can be cultivated through conventional tillage and non-tillage.…”

Section: Introductionmentioning

confidence: 99%

Availability of Metribuzin-Loaded Polymeric Nanoparticles in Different Soil Systems: An Important Study on the Development of Safe Nanoherbicides

Takeshita

Munhoz-Garcia

Pinácio

et al. 2022

Plants

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Nanoformulations have been used to improve the delivery of fertilizers, pesticides, and growth regulators, with a focus on more sustainable agriculture. Nanoherbicide research has focused on efficiency gains through targeted delivery and environmental risk reduction. However, research on the behavior and safety of the application of these formulations in cropping systems is still limited. Organic matter contained in cropping systems can change the dynamics of herbicide–soil interactions in the presence of nanoformulations. The aim of this study was to use classical protocols from regulatory studies to understand the retention and mobility dynamics of a metribuzin nanoformulation, compared to a conventional formulation. We used different soil systems and soil with added fresh organic material. The batch method was used for sorption–desorption studies and soil thin layer chromatography for mobility studies, both by radiometric techniques. Sorption parameters for both formulations showed that retention is a reversible process in all soil systems (H~1.0). In deep soil with added fresh organic material, nanoformulation was more sorbed (14.61 ± 1.41%) than commercial formulation (9.72 ± 1.81%) (p < 0.05). However, even with the presence of straw as a physical barrier, metribuzin in nano and conventional formulations was mobile in the soil, indicating that the straw can act as a barrier to reduce herbicide mobility but is not impeditive to herbicide availability in the soil. Our results suggest that environmental safety depends on organic material maintenance in the soil system. The availability can be essential for weed control, associated with nanoformulation efficiency, in relation to the conventional formulation.

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Soil Actinobacteria Exhibit Metabolic Capabilities for Degrading the Toxic and Persistent Herbicide Metribuzin

Rebai,

Sholkamy,

Abdelhamid

et al. 2024

Toxics

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Metribuzin, a widely used triazine herbicide, persists in agricultural soils and poses significant environmental pollution threats globally. The aim of this study was to investigate the biodegradation of metribuzin by actinobacterial strains in vitro at different environmental conditions. From an initial screen of 12 actinobacterial strains, four bacteria exhibited robust growth in the presence of the metribuzin as the sole carbon source at 50 mg/L concentration. The optimization of metribuzin biodegradation under different conditions (pH, temperature and inoculum size) using a spectrophotometric method revealed that maximum degradation of metribuzin occurred at a pH of 7.2, a temperature 30 °C, and at an inoculum volume of 4%. Subsequent GC-MS validation confirmed the remarkable biodegradation capabilities of the actinobacterial isolates, where the strain C1 showed the highest rate of metribuzin degradation of 83.12%. Detailed phylogenetic identified the active strains as Streptomyces toxytricini (CH), Streptomyces stelliscabiei (B2), and two Streptomyces heliomycini (C1, C3). Structural analysis by ATR-FTIR spectroscopy confirmed the extensive biotransformation of the herbicide molecule. Our findings highlight the immense untapped potential of soil actinobacteria, particularly the Streptomyces heliomycini C1 strain, as versatile bioremediation agents for removing persistent agrochemical pollutants.

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Biotransformation of metribuzin under various electron acceptor conditions

Cited by 3 publications

References 36 publications

Developing green technologies for environmental sustainability and quality

Developing green technologies for environmental sustainability and quality

Availability of Metribuzin-Loaded Polymeric Nanoparticles in Different Soil Systems: An Important Study on the Development of Safe Nanoherbicides

Soil Actinobacteria Exhibit Metabolic Capabilities for Degrading the Toxic and Persistent Herbicide Metribuzin

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