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Increasing microplastic abundance drives deterministic assembly of soil microbial communities and suppresses energy metabolism
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Microplastics reduce soil microbial network complexity and ecological deterministic selection
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Researchers found that microplastics reduce soil microbial network complexity and shift community assembly from deterministic to more stochastic processes, suggesting that microplastic pollution may fundamentally alter microbial ecological interactions in terrestrial systems.
Increasing microplastic abundance drives deterministic assembly of soil microbial communities and suppresses energy metabolism
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A field study of agricultural soils in southwest China found that higher microplastic concentrations suppress the genes bacteria need for energy production and carbohydrate breakdown, while also pushing microbial communities toward less diverse, stress-filtered compositions. These disruptions to soil microbial function raise concerns for long-term agricultural productivity and ecosystem health in microplastic-contaminated farmland.
Microplastics Change Soil Nutrient Availability, Microbial Properties, and Ecosystem Multifunctionality of a Red Soil
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A two-month incubation experiment found that polyethylene and PVC microplastics disrupt soil nutrient availability, microbial communities, and overall ecosystem function in red soil, with effects varying by plastic type, size, and dose. Soil microplastic contamination threatens agricultural productivity by undermining the microbial processes that keep soils fertile.
Microplastics increase soil microbial network complexity and trigger diversity-driven community assembly
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Researchers found that microplastics in soil increased bacterial network complexity and shifted microbial community assembly in a diversity-dependent manner, with high-density polyethylene causing more harm to plant growth than polystyrene or polylactic acid particles.
Feedback, synergy and antagonism between microplastics and soil organisms
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Microplastics, tiny plastic fragments from industrial waste and vehicle exhaust, are building up in soil, and this review pulls together research on how they disrupt soil life, from bacteria to earthworms to crop plants like wheat and tomatoes. The effects are a mixed bag: some microbes actually thrive, while earthworms can suffer toxic effects and plants may absorb harmful chemicals through their roots. This matters because these plastics can accumulate over time and potentially move up the food chain into the foods we eat, though scientists say more research is needed to fully understand the risks.
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