Novel mechanism and degradation kinetics of allethrin using Bacillus megaterium strain HLJ7 in contaminated soil/water environments

Huang, Yaohua; Chen, Wenjuan; Li, Jiayi; Ghorab, Mohamed A.; Alansary, Nasser; El-Hefny, Dalia E.; El-Sayyad, Gharieb S.; Mishra, Sandhya; Zhang, Xidong; Bhatt, Pankaj; Chen, Shaohua

doi:10.1016/j.envres.2022.113940

Cited by 40 publications

(4 citation statements)

References 56 publications

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“…Acephate decomposition rates under different compositions were collected according to the method of previous research . In this experiment, Andrews equation was chosen to simulate the degradation kinetics of strain A11 under different substrate concentrations as mentioned in previous study . Kinetic parameters were established using Matrix Laboratory (MATLAB) software (Version 7.8).…”

Section: Methodsmentioning

confidence: 99%

Rapid Biodegradation of the Organophosphorus Insecticide Acephate by a Novel Strain Burkholderia sp. A11 and Its Impact on the Structure of the Indigenous Microbial Community

Chen

Lin

et al. 2023

J. Agric. Food Chem.

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The acephate-degrading microbes that are currently available are not optimal. In this study, Burkholderia sp. A11, an efficient degrader of acephate, presented an acephate-removal efficiency of 83.36% within 56 h (100 mg·L–1). The A11 strain has a broad substrate tolerance and presents a good removal effect in the concentration range 10–1600 mg·L–1. Six metabolites from the degradation of acephate were identified, among which the main products were methamidophos, acetamide, acetic acid, methanethiol, and dimethyl disulfide. The main degradation pathways involved include amide bond breaking and phosphate bond hydrolysis. Moreover, strain A11 successfully colonized and substantially accelerated acephate degradation in different soils, degrading over 90% of acephate (50–200 mg·kg–1) within 120 h. 16S rDNA sequencing results further confirmed that the strain A11 gradually occupied a dominant position in the soil microbial communities, causing slight changes in the diversity and composition of the indigenous soil microbial community structure.

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Section: Methodsmentioning

confidence: 99%

Rapid Biodegradation of the Organophosphorus Insecticide Acephate by a Novel Strain Burkholderia sp. A11 and Its Impact on the Structure of the Indigenous Microbial Community

Chen

Lin

et al. 2023

J. Agric. Food Chem.

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“…The maximum specific degradation rate was also obtained by the Haldane–Andrews model: q 0.25em = q max S S + K normals ′ + ( S 2 / K i ′ ) where q max is the maximum specific degradation rate (h –1 ) of profenofos, S is the profenofos concentration (mg/L), K s ′ is the half-saturation constant (mg/L), and K i ′ is an inhibition constant (mg/L).…”

Section: Materials and Methodsmentioning

confidence: 99%

Research on the Mechanism of Ultrasound To Enhance the Biodegradation of Profenofos by Lactiplantibacillus plantarum

Yuan

Xie

et al. 2023

ACS Agric. Sci. Technol.

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The effect and mechanism of ultrasound on the biodegradation of profenofos by Lactiplantibacillus plantarum were studied in this work. The results showed that ultrasound applied in the prelogarithmic phase of microbial growth would significantly enhance the biodegradation of profenofos (P < 0.05). The key ultrasonic parameters (ultrasonic intensity, pulse mode, and duration time) were optimized using the response surface methodology. The Holden model was used to describe the growth of L. plantarum and the biodegradation of profenofos. Under the optimal ultrasonic condition, the maximum specific growth rate of L. plantarum and the maximum specific degradation rate of profenofos were 2 and 1.7 times higher than those without sonication, respectively. The promotion of profenofos degradation by ultrasound comes from two aspects: one is the enhancement of phosphatase activity; the second is the improvement of cell membrane permeability, which accelerates the transport of nutrients, profenofos, and other metabolites through the cell membrane.

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“…For the microbe-based degradation of pharmaceutical contaminants, many kinetic models have been developed. [146][147][148] One such model for determining degradation kinetics is the Haldane equation. This equation addresses the kinetics of cell development on hazardous substrates.…”

Section: Microbial Degradation: Kinetic Modelsmentioning

confidence: 99%

Promising approaches and kinetic prospects of the microbial degradation of pharmaceutical contaminants

Karishma,

Yaashikaa,

Kumar

et al. 2023

Environ. Sci.: Adv.

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Novel mechanism and degradation kinetics of allethrin using Bacillus megaterium strain HLJ7 in contaminated soil/water environments

Cited by 40 publications

References 56 publications

Rapid Biodegradation of the Organophosphorus Insecticide Acephate by a Novel Strain Burkholderia sp. A11 and Its Impact on the Structure of the Indigenous Microbial Community

Rapid Biodegradation of the Organophosphorus Insecticide Acephate by a Novel Strain Burkholderia sp. A11 and Its Impact on the Structure of the Indigenous Microbial Community

Research on the Mechanism of Ultrasound To Enhance the Biodegradation of Profenofos by Lactiplantibacillus plantarum

Promising approaches and kinetic prospects of the microbial degradation of pharmaceutical contaminants

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