Biodegradation of organophosphorus insecticides with P S bonds by two Sphingobium sp. strains

Ahn, Jae-Hyung; Lee, Shin-Ae; Kim, Soojin; You, Jaehong; Han, Byeong-Hak; Weon, Hang-Yeon; Lee, Se-Weon

doi:10.1016/j.ibiod.2018.05.006

Cited by 21 publications

(10 citation statements)

References 31 publications

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“…On the other hand, we observed that the tolerant A. niger MRU01 strain in the preparation could efficiently remove parathion, and removal was about 50% during 5 days, though this was lower than that observed for the other three insecticides. Ahn et al 13 . reported that OPs with PS bonds are metabolically degraded faster than OPs with PS bonds.…”

Section: Resultsmentioning

confidence: 99%

“…Microorganisms like algae, bacteria and fungi determine the fate of OPs in the environment. Many bacterial strains have a great degradation potential for OP insecticides, including malathion 12,13 . Different species of fungi like Aspergillus glaucus , 14 A. flavus and A. sydowii 15 and Trichoderma viride 16 have also shown efficiency for the degradation of OP chemicals.…”

Section: Introductionmentioning

confidence: 99%

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Evaluating a preparation of malathion‐tolerant Aspergillus niger MRU01 for accelerated removal of four organophosphorus insecticides

Mohapatra

Rath

Mohapatra

2021

J of Chemical Tech & Biotech

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BACKGROUND Microbial degradation of organophosphorus (OP) insecticides has emerged as an efficient and cost‐effective technology for removal of pesticide residues from soil. Malathion‐tolerant Aspergillus (Aspergillus niger MRU01) was developed, mass cultured, harvested, mixed with coir pith at 3% on dry weight basis, shade‐dried aseptically to a 5% moisture level and stored for 60 days. The growth, metabolic activity and insecticide removal efficiencies of the preparation were evaluated at 15‐day intervals. RESULTS No significant change in the growth performance was observed up to 45 days of storage, after which viability decreased. The activities of carbohydrate enzymes (cellulase, invertase and amylase) and protein and carbohydrate contents of the preparation, however, did not significantly change during the experimental period. The preparation showed accelerated activities of esterases and phosphatases after treatment with malathion (500 μmol L−1), parathion (470 μmol L−1), chlorpyrifos (260 μmol L−1) and dimethoate (680 μmol L−1). The highest activity of the esterase and phosphatase enzymes was observed with malathion and the minimum with parathion treatment. Nearly 70% of the applied malathion was removed from the medium by the preparation during 5 days of incubation followed by dimethoate (68%), chlorpyrifos (58%) and parathion (54%). CONCLUSIONS The fungal preparation was highly effective in removing malathion as well as the other three OP insecticides. A storage period of 45 days may be considered ideal for maintaining the preparation in the active state, and is recommended for field application after evaluating its efficacy under field conditions. © 2021 Society of Chemical Industry

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evaluating a preparation of malathion‐tolerant Aspergillus niger MRU01 for accelerated removal of four organophosphorus insecticides

Mohapatra

Rath

Mohapatra

2021

J of Chemical Tech & Biotech

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“…and Diaphorobacter sp. (Ahn et al, 2018;Rahman et al, 2018) are commonly isolated bacterial strains from pesticide-applied farmland soil. Screening for THIA degrading bacteria…”

Section: Identification Of Thiamethoxam Degradersmentioning

confidence: 99%

Preliminary study on thiamethoxam degrading bacteria isolated from corn plantation

Vigneswari¹,

Sukarman²,

Ariffin³

2021

MJM

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Aims: Thiamethoxam (THIA) is a pesticide that has been widely used for its effectiveness in controlling and preventing insect pests. However, the use of THIA diffused in soil, surface and groundwater pose severe toxicity to the ecosystem. The hazardous pollution caused by the toxicity of THIA demands for remediation to ensure degradation of THIA into its safe constituent elements. Thus, the aim of this study is to isolate and identify potential THIA degraders for future bioremediation. Methodology and results: Bacteria were isolated from soil sample collected at a corn plantation which utilizes THIA as a source of pesticide. Overall, two bacterial isolates were isolated from the soil sample. The bacterial isolates were screened and identified for their ability to degrade pesticide by culturing in minimal salt media (MSM) supplemented with 50 mg/L THIA. The growth of isolates was observed and analyzed through spectrophotometry analysis, standard plate count method and pH value of culture medium. As a result, isolate THIA 1 had been found to possess the ability to degrade pesticide as it showed a high rate in growth of bacteria compared to its controls. Meanwhile, isolate THIA 2 showed no degrading activities while under treatment as it showed similar rate of growth towards its control. Isolate THIA 1 was identified as Acinetobacter sp. UMTFA THIA 1. Conclusion, significance and impact of study:The isolation and identification of the pesticide degrading bacteria will provide promising source of pesticide degrading enzyme that can be further developed for enzymatic pesticide biodegradation. This will pave the way forward in bioremediation where new effective degradation tools can be developed for pesticide residue which otherwise lead to serious ecological problem.

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“…K22212 and Sphingobium sp. Cam5-1 could only degrade organophosphorus insecticides with P-S bonds (Ahn et al, 2018). Few microorganisms can degrade acephate or methamidophos, or even completely mineralize them.…”

Section: Methamidophos-degrading Microorganismsmentioning

confidence: 99%

Degradation of Acephate and Its Intermediate Methamidophos: Mechanisms and Biochemical Pathways

et al. 2020

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Biodegradation of organophosphorus insecticides with P S bonds by two Sphingobium sp. strains

Cited by 21 publications

References 31 publications

Evaluating a preparation of malathion‐tolerant Aspergillus niger MRU01 for accelerated removal of four organophosphorus insecticides

Evaluating a preparation of malathion‐tolerant Aspergillus niger MRU01 for accelerated removal of four organophosphorus insecticides

Preliminary study on thiamethoxam degrading bacteria isolated from corn plantation

Degradation of Acephate and Its Intermediate Methamidophos: Mechanisms and Biochemical Pathways

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