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Biodegradation of Allethrin by a Novel Fungus Fusarium proliferatum Strain CF2, Isolated from Contaminated Soils.


ABSTRACT: Continuous use of allethrin has resulted in heavy environmental contamination and has raised public concern about its impact on human health, yet little is known about the kinetics and microbial degradation of this pesticide. This study reported the degradation kinetics in a novel fungal strain, Fusarium proliferatum CF2, isolated from contaminated agricultural fields. Strain CF2 utilized 50 mg·L-1 of allethrin as the sole carbon source for growth in minimal salt medium and tolerated high concentrations of allethrin of up to 1000 mg·L-1. The optimum degradation conditions for strain CF2 were determined to be a temperature of 26 °C and pH 6.0 using response surface methodology. Under optimum conditions, strain CF2 completely degraded allethrin within 144 hours. The degradation kinetics of allethrin followed first order reaction kinetics. Kinetics analysis showed that its half-life was substantially reduced by 507.1 hours, as compared to the uninoculated control. This study provides new insights into the microbial degradation of allethrin with fungal F. proliferatum CF2.

SUBMITTER: Bhatt P 

PROVIDER: S-EPMC7232317 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature

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Biodegradation of Allethrin by a Novel Fungus <i>Fusarium proliferatum</i> Strain CF2, Isolated from Contaminated Soils.

Bhatt Pankaj P   Zhang Wenping W   Lin Ziqiu Z   Pang Shimei S   Huang Yaohua Y   Chen Shaohua S  

Microorganisms 20200420 4


Continuous use of allethrin has resulted in heavy environmental contamination and has raised public concern about its impact on human health, yet little is known about the kinetics and microbial degradation of this pesticide. This study reported the degradation kinetics in a novel fungal strain, <i>Fusarium proliferatum</i> CF2, isolated from contaminated agricultural fields. Strain CF2 utilized 50 mg·L<sup>-1</sup> of allethrin as the sole carbon source for growth in minimal salt medium and tol  ...[more]

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