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Microplastics and soil microbiomes

BMC Biology 2025 13 citations

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This review examines the two-way relationship between microplastics and soil microbiomes: how microplastics alter microbial community structure and function, and how soil microbes in turn affect the behavior of microplastics. Researchers found that microplastics can shift microbial communities and disrupt key ecosystem processes like nutrient cycling. The study also discusses how certain soil microbes may enhance the degradation of microplastics, pointing to potential natural remediation pathways.

Microplastics, small particles that are released from plastics as they degrade, are ubiquitous and increasing in amount in most environments, including the soil. Here, we review the impacts of microplastics on the structure and activity of soil microbiomes and their key ecosystem functions. We then discuss how soil microbiomes regulate the environmental behavior of microplastics, such as enhancing pollutant adsorption and promoting degradation. Finally, we describe knowledge gaps and future priorities in understanding the ecological risks and potential mitigation strategies for microplastic pollution.

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