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Next-generation biodegradation of chlorpyrifos: integrative microbial strategies, molecular mechanisms, and environmental impacts
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DOI：10.1007/s10532-026-10329-3.png)
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Abstract
En 中文
Chlorpyrifos (CP) belongs to organophosphate pesticide group. It is extensively applied in agricultural and household settings due to its broad-spectrum insecticidal properties. However, its persistence, bioaccumulative behavior, and toxicological effects on non-target organisms, including humans, pose significant environmental and public health concerns. CP and its metabolites, particularly two including 3,5,6-trichloropyridinol (TCP) and chlorpyrifos-oxon (CPO), have been recently reported to be widely found various samples such as in soils, sediments, water bodies, crops, and even human biological fluids. These compounds disrupt biogeochemical cycles, alter soil microbial communities, inhibit enzyme activities, and are linked to neurotoxicity, endocrine disruption, and genotoxic effects. Conventional remediation strategies such as photodegradation, ultrasonication, and filtration remain ineffective due to incomplete degradation and secondary pollution risks. Recent studies highlight the efficiency of microbial degradation, especially by bacteria such as Bacillus, Klebsiella, Pseudomonas and Enterobacter as a promising, eco-friendly alternative. These microorganisms utilize CP as a only carbon source, and degradation calibre is greatly governed by various abiotic factors like pH, temperature, and moisture. The genetic as well as enzymatic analyses reveal key roles of organophosphorus hydrolases encoded by genes such as opd and mpd. The integration of plant growth-promoting traits and laccase activity further enhances their bioremediation capability. Additionally, recent advancements in biosensing techniques for CP detection offer improved sensitivity and real-time monitoring. This review provides a comprehensive analysis of CP’s environmental fate, toxicological impact, degradation pathways, and the emerging role of bacterial bioremediation, highlighting its potential for sustainable environmental detoxification.
Keywords:
Chlorpyrifos
Organophosphate hydrolase
Soil microbiome
Bacterial remediation
Environmental toxicity
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