Comparative study of bacterial community dynamics in different soils following application of the herbicide atrazine

Dhakar, Kusum; Medina, Shlomit; Ziadna, Hamam; Igbaria, Karam; Lati, Ran Nisim; Zarecky, Raphy; Ronen, Zeev; Dovrat, Guy; Eizenberg, Hanan; Freilich, Shiri

doi:10.1016/j.envres.2022.115189

Cited by 6 publications

(1 citation statement)

References 35 publications

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“…The dominant genera Flavisolibacter, Bacillus, Pseudomonas, Balneimonas, Kaistobacter, Rubrobacter, and Ammoniphilus present in soil were known for their role in xenobiotic mineralization, repairing the soil and plant growth-promoting (Lin et al 2018;Dhakar et al 2023;Liu et al 2023a) They higher abundance in biochar treatments may be linked with more dissipation of CP and ATZ (Fig. 6c).…”

Section: Effect Of Biochar On Microbial Community Enzymes and Degrada...mentioning

confidence: 99%

Effect of biochar on soil microbial community, dissipation and uptake of chlorpyrifos and atrazine

Singh,

Yadav,

Pandey

et al. 2024

Biochar

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For the application of biochar in restoring pesticide-contaminated soils and minimizing the risk associated with their uptake in plants, it is crucial to understand the biochar impact on soil biological activities and dissipation and accumulation of pesticides in plant and soil systems. In this study, the effect of Mentha-distilled waste-derived biochar was investigated on chlorpyrifos and atrazine contaminated sandy loam soil. The four application rates of atrazine (2, 4, 6, and 8 mg kg−1) and chlorpyrifos (2, 4, 6, and 12 mg kg−1) and a single application rate of biochar (4%) were used in this study. The degradation of pesticides, the diversity of the bacterial community, and enzymatic activities (alkaline phosphatase, dehydrogenase, arylsulfatase, phenol oxidase, urease activity and N-acetyl glucosaminidase) were examined in soil. The uptake of two pesticides and their effect on growth and stress parameters were also investigated in plants (A. paniculata). The dissipation of chlorpyrifos and atrazine followed simple first-order kinetics with a half-life of 6.6–74.6 and 21–145 days, respectively. The presence of deisopropyl atrazine desethyl atrazine (metabolites of atrazine) and 3,5,6-trichloro-2-pyridinol (a metabolite of chlorpyrifos) was observed in soil and plant tissues. Biochar application significantly (p = 0.001) enhanced the degradation rate of chlorpyrifos and atrazine leading to the lower half-life of chlorpyrifos and atrazine in soil. A significant reduction (p = 0.001) in the uptake of chlorpyrifos and atrazine and alteration in their binding affinity and uptake rate in plant tissues was observed in biochar treatments. The incorporation of biochar improved chlorpyrifos/atrazine degrader and plant growth-promoting bacterial genera such as Balneimonas, Kaistobacter, Rubrobacter, Ammoniphilus, and Bacillus. The upregulation of functional genes associated with nucleotide, energy, carbohydrate, amino acid metabolism, xenobiotic biodegradation, and metabolism: atrazine degradation was observed in biochar treatments. The biochar amendments significantly (p = 0.001) reduced the plant’s uptake velocity (Vmax) and affinity (Km) of chlorpyrifos and atrazine. These results delineated that Mentha-distilled waste-derived biochar can potentially remediate chlorpyrifos and atrazine contaminated soils and ensure the safety of plants for consumption. Graphical Abstract

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Section: Effect Of Biochar On Microbial Community Enzymes and Degrada...mentioning

confidence: 99%

Effect of biochar on soil microbial community, dissipation and uptake of chlorpyrifos and atrazine

Singh,

Yadav,

Pandey

et al. 2024

Biochar

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show abstract

Environmental fate, toxicological impact, and advanced treatment approaches: Atrazine degradation and emphasises on circular economy strategy

Singh,

Khan,

Ramadan

et al. 2024

Desalination and Water Treatment

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Impact of pyroxasulfone on sugarcane rhizosphere microbiome and functioning during field degradation

Wang

Men

Zheng

et al. 2023

Journal of Hazardous Materials

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Comparative study of bacterial community dynamics in different soils following application of the herbicide atrazine

Cited by 6 publications

References 35 publications

Effect of biochar on soil microbial community, dissipation and uptake of chlorpyrifos and atrazine

Effect of biochar on soil microbial community, dissipation and uptake of chlorpyrifos and atrazine

Environmental fate, toxicological impact, and advanced treatment approaches: Atrazine degradation and emphasises on circular economy strategy

Impact of pyroxasulfone on sugarcane rhizosphere microbiome and functioning during field degradation

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