Abstract
Long-term and excessive application of chlorimuron-ethyl has led to a series of environmental problems. Strain Hansschlegelia sp. CHL1, a highly efficient chlorimuron-ethyl degrading bacterium isolated in our previous study, was employed in the current soil bioremediation study. The residues of chlorimuron-ethyl in soils were detected, and the changes of soil microbial communities were investigated by phospholipid fatty acid (PLFA) analysis. The results showed that strain CHL1 exhibited significant chlorimuron-ethyl degradation ability at wide range of concentrations between 10μg kg-1 and 1000μg kg-1. High concentrations of chlorimuron-ethyl significantly decreased the total concentration of PLFAs and the Shannon-Wiener indices and increased the stress level of microbes in soils. The inoculation with strain CHL1, however, reduced the inhibition on soil microbes caused by chlorimuron-ethyl. The results demonstrated that strain CHL1 is effective in the remediation of chlorimuron-ethyl-contaminated soil, and has the potential to remediate chlorimuron-ethyl contaminated soils in situ.
Highlights
ObjectivesThe aim of the present work was to assess the bioremediation ability of strain CHL1 by investigating the residues and microbial community dynimics during the remediation process
Data Availability Statement: All relevant data are within the paper
There was a significant difference in the half-life of chlorimuron-ethyl between soils inoculated with strain CHL1 or not
Summary
The aim of the present work was to assess the bioremediation ability of strain CHL1 by investigating the residues and microbial community dynimics during the remediation process
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