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Microplastic Alters Rhizosphere Microbiome: A Review
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Researchers review how microplastic accumulation in soil disrupts the rhizosphere microbiome — the community of beneficial microorganisms surrounding plant roots — impairing nutrient uptake and pathogen resistance in ways that could threaten agricultural productivity and soil ecosystem health.
Rhizosphere is the hotspot of plant-microbe interaction. The healthy rhizosphere microbiome is essential for plant as it assists in nutrient uptake and offers protection against pathogen attack. Accumulation of microplastics in soil impacts rhizosphere microbiome by...
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Impact of Microplastic Accumulation on Rhizosphere Activities in Soil
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Researchers examine how microplastic accumulation in soil alters rhizosphere dynamics, finding that plastic particles disrupt microbial communities and enzyme activities in the root zone, with downstream effects on nutrient cycling and overall soil health.
The regulated effects of phosphorus addition on rhizosphere microecology under microplastic pollution: a comparison based on different plant types
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A pot experiment found that polyethylene microplastics and phosphorus fertilizers interact in crop-specific ways, altering root growth and soil moisture differently in wheat versus maize. Understanding these interactions matters because microplastic contamination in farmland soils could undermine fertilizer strategies and threaten crop productivity.
Microplastic accumulation in agricultural soils – Impacts on crop microbiomes and soil health
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Researchers review how microplastics from mulch films, sewage sludge, and wastewater accumulate in agricultural soils, disrupting microbial communities, reducing enzyme activity essential for nutrient cycling, and accumulating in crop tissues, raising food safety concerns and highlighting the need for biodegradable alternatives and better wastewater treatment.
Role of Rhizobiome in Mitigating Plastic Pollution in Pedosphere
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Soil rhizobiome communities—the microorganisms associated with plant root zones—play a potential role in mitigating plastic pollution in the pedosphere through microbial degradation and transformation of plastic particles. Harnessing rhizobiome activity represents a biologically-integrated approach to reducing soil microplastic accumulation in agricultural systems where plastic contamination is widespread.
Microplastics in Soil-Plant Systems
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This review synthesized evidence on microplastic contamination in terrestrial soil-plant systems, examining effects on soil structure, nutrient cycling, microbial communities, and plant uptake of plastic particles. Because plants can absorb microplastics and translocate them into edible tissue, agricultural soil contamination represents a direct and underappreciated pathway of human dietary exposure to plastic particles.
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