Resistance of chlorpyrifos to enhanced biodegradation in soil

Racke, Kenneth D.; Laskowski, D. A.; Schultz, Mark

doi:10.1021/jf00096a029

Cited by 142 publications

(93 citation statements)

References 38 publications

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“…The degradation of high concentration of different pesticides by isolated microorganisms has been reported previously. One of the important reasons cited for the lack of isolation of CP-utilizing microorganisms is the antimicrobial activity of TCP at high concentrations (Racke et al, 1990). The growth of the isolated Naxibacter species was not affected by TCP, even at concentrations of higher than 250 mg/L.…”

Section: Discussionmentioning

confidence: 98%

Biodegradation of Chlorpyrifos (CP) by a Newly Isolated Naxibacter sp. Strain CY6 and Its Ability to Degrade CP in Soil

Kim¹,

Choi²,

Jang³

et al. 2013

The Korean Journal of Microbiology

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A bacterium, isolated from a vegetable field in a plastic film house and named strain CY6 was capable of biodegrading chlorpyrifos (CP). Based on the phenotypic features and the phylogenetic similarity of 16S rRNA gene sequences, strain CY6 was identified as a Naxibacter sp.. CP was utilized as the sole source of carbon and phosphorus by Naxibacter sp. CY6. We examined the role of this Naxibacter sp. in the degradation of other OP insecticides under liquid cultures. Parathion, methyl parathion, diazinon, cadusafos, and ethoprop could also be degraded by Naxibacter sp. CY6 when they are provided as the sole sources of carbon and phosphorus. Additionally, Naxibacter sp. CY6 (10 8 CFU/g) added to soil with CP (100 mg/kg) resulted in a higher degradation rate of approximately 90% than the rate obtained from uninoculated soils. These results highlight the potential of this bacterium to be used in the cleanup of contaminated pesticide soil.

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Section: Discussionmentioning

confidence: 98%

Biodegradation of Chlorpyrifos (CP) by a Newly Isolated Naxibacter sp. Strain CY6 and Its Ability to Degrade CP in Soil

Kim¹,

Choi²,

Jang³

et al. 2013

The Korean Journal of Microbiology

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“…[11,18] However, several investigators had noted that little difference was observed in the dissipation rates of chlorpyrifos between sterile and microbially active soils and had concluded that microorganisms might not always play a significant role. [16,26] This discrepancy regarding biotic and abiotic contribution to chlorpyrifos dissipation in soil might be attributable to the differences in originally applied dosage of chemicals, soil type, microbial activity and so on. A lower dosage of organic pollutant fortified in soil might be not enough to stimulate microorganisms' ability to degrade pollutant, because they possibly ignored this intervention from a lower dosage of chemical, owing to sufficient carbon and nutrition sources from soil.…”

Section: Dissipation Of Chlorpyrifos In St Soilmentioning

confidence: 99%

Abiotic control on the dissipation of chlorpyrifos spiked in an Udic Ferrisol at a lower dosage

Wang

Jiao

Jiang

et al. 2013

Chemistry and Ecology

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The dissipation routes of chlorpyrifos spiked in an Udic Ferrisol at the dosage of 400 ng g −1 , which represents a residual level after an agricultural application, were studied in a laboratory, using the natural soil under three moisture regimes, sterilised, and organic matter-free soils in the dark at 20 • C. The obtained results showed that higher soil moisture caused faster dissipation, and the abiotic and biotic contributions to the total dissipated amount of the applied chlorpyrifos in the soil accounted for 77.3-85.2% and 14.7-22.7%, respectively. In the sterilised soil, the contribution of organic matter to chlorpyrifos dissipation was noticed to account for 95% in the earlier two weeks, and was nearly equal to that of soil minerals two weeks after the incubation.

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“…Goda et al (2010) showed that the intact cells of Pseudomonas putida IS168 were able to degrade fenitrothion, diazinon and profenofos when present as sole carbon sources, but failed to grow on chlorpyrifos. Trichloropyridinol (TCP), one of the main chlorpyrifos metabolites, has antimicrobial properties (Cáceres et al, 2007;Feng et al, 1997;Racke et al, 1990), possibly accounting for the scarcity of chlorpyrifos-degrading microorganisms. Degradation of pyrethroids in soil has also been extensively studied (Gan et al, 2005;Jorhan & Kaufman, 1986;Kaufman et al, 1981;Lee et al, 2004;Lord et al, 1982).…”

Section: Micromial Degradationmentioning

confidence: 99%

Factors Affecting Performance of Soil Termiticides

Wiltz¹

2012

Insecticides - Basic and Other Applications

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Resistance of chlorpyrifos to enhanced biodegradation in soil

Cited by 142 publications

References 38 publications

Biodegradation of Chlorpyrifos (CP) by a Newly Isolated Naxibacter sp. Strain CY6 and Its Ability to Degrade CP in Soil

Biodegradation of Chlorpyrifos (CP) by a Newly Isolated Naxibacter sp. Strain CY6 and Its Ability to Degrade CP in Soil

Abiotic control on the dissipation of chlorpyrifos spiked in an Udic Ferrisol at a lower dosage

Factors Affecting Performance of Soil Termiticides

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