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  • Title: Rhizosphere bacteria G-H27 significantly promoted the degradation of chlorpyrifos and fosthiazate.
    Author: Zhang X, Gao Y, Zhao C, Wang L, Wen S, Shi B, Zhu L, Wang J, Kim YM, Wang J.
    Journal: Sci Total Environ; 2024 Mar 20; 917():169838. PubMed ID: 38232838.
    Abstract:
    Microbial remediation of polluted environments is the most promising and significant research direction in the field of bioremediation. In this study, chlorpyrifos and fosthiazate were selected as representative organophosphorus pesticides, wheat was the tested plant, and fluorescently labeled degrading Bacillus cereus G-H27 were the film-forming bacteria. Exogenous strengthening technology was used to establish degrading bacterial biofilms on the root surface of wheat. The influence of root surface-degrading bacterial biofilms on the enrichment of chlorpyrifos and fosthiazate in wheat was comprehensively evaluated. First, the fluorescently-labeled degrading bacteria G-H27 was constructed, and its film-forming ability was investigated. Second, the growth- promoting characteristics and degradation ability of the bacteria G-H27 were investigated. Finally, the degradation effect of the root surface-degrading bacterial biofilm on chlorpyrifos and fosthiazate was determined. The above research provides an important material basis and method for the bioremediation of pesticide-contaminated soil.
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