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20 resultsShowing papers similar to Potential impacts of polyethylene microplastics and heavy metals on Bidens pilosa L. growth: Shifts in root-associated endophyte microbial communities
ClearEffects of polyethylene microplastics and heavy metals on soil-plant microbial dynamics
This study examined how polyethylene microplastics interact with heavy metals in soil and found that microplastics significantly reduced plant growth while altering soil enzyme activity and microbial communities. The combination of microplastics and heavy metals disrupted nutrient cycling in the soil in ways that were different from either pollutant alone. These findings suggest that microplastic contamination in agricultural soil could affect crop nutrition and food production.
Effects of polyethylene microplastics on the microbial community structure of maize rhizosphere soil
Researchers investigated how polyethylene microplastics from agricultural films affect the microbial communities in crop root zones (rhizosphere), finding shifts in bacterial diversity and function. Disrupting soil microbiomes through microplastic contamination could have downstream effects on soil fertility and crop health.
Polyethylene microplastics alter soil microbial community assembly and ecosystem multifunctionality
Researchers studied how polyethylene microplastics at different concentrations affect soil microbial communities and overall ecosystem function in a maize growing system. They found that higher concentrations of microplastics shifted microbial community composition, reduced beneficial bacteria involved in nutrient cycling, and impaired multiple soil ecosystem functions simultaneously. The study suggests that microplastic contamination in agricultural soils can undermine the biological processes that support healthy crop growth.
From the rhizosphere to plant fitness: Implications of microplastics soil pollution
Researchers exposed strawberry plants to low-density polyethylene microplastics in soil and found significant harm, including reduced chlorophyll levels, altered nutrient uptake, and increased stress responses. The microplastics also shifted the soil microbiome toward potentially harmful fungi and bacteria. These findings show that microplastics in agricultural soil can damage crop health and change the microbial community that plants depend on.
Aging microplastic aggravates the pollution of heavy metals in rhizosphere biofilms
Researchers found that aging microplastics aggravate heavy metal pollution in rhizosphere biofilms, with weathered MPs accumulating more metals and altering microbial community structure in the root zone, potentially increasing contaminant transfer to plants.
Effects of combined microplastics and heavy metals pollution on terrestrial plants and rhizosphere environment: A review
This review summarizes how microplastics and heavy metals interact in soil to affect plant growth and the surrounding ecosystem. When present together, these pollutants cause significantly more harm than either alone, reducing plant weight by up to 87.5% and altering how heavy metals accumulate in crops -- raising concerns about food safety and human exposure through contaminated agricultural products.
Polyethylene Microplastic Particles Alter the Nature, Bacterial Community and Metabolite Profile of Reed Rhizosphere Soils
Researchers found that polyethylene microplastic particles alter the bacterial community composition, soil environmental factors, and metabolite profiles of reed rhizosphere soils, with effects increasing at higher microplastic concentrations and showing distinct interactions with reed biomass.
Legacy effect of microplastics on plant–soil feedbacks
Researchers examined the legacy effects of microplastic contamination on plant-soil feedbacks using soil previously conditioned with various microplastic types, finding that residual microplastics altered soil microbial communities and nutrient cycling in ways that affected subsequent plant growth.
Microplastics increase soil microbial network complexity and trigger diversity-driven community assembly
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.
Microplastics in heavy metal-contaminated soil drives bacterial community and metabolic changes
Researchers found that adding common microplastics to soil already contaminated with heavy metals significantly changed the bacterial communities and their metabolic processes. The microplastics increased competition among bacteria and shifted how they process energy, while Proteobacteria became more abundant as a stress response. This matters because when microplastics and heavy metals combine in agricultural soil, they may disrupt the microbial ecosystems that keep soil healthy for growing food.
Impact of Nanoplastic Contamination on Rhizosphere Microbiome and Plant Phenotype
This study examined how nanoplastic contamination affects the rhizosphere microbiome (soil bacteria around plant roots) and plant growth. Nanoplastic exposure altered soil microbial communities and reduced plant growth, suggesting these tiny plastic particles could disrupt the soil ecosystems that support food production.
Influencing mechanisms of microplastics existence on soil heavy metals accumulated by plants
This review summarizes existing research on how microplastics in soil affect the uptake of heavy metals by plants. Microplastics can change soil chemistry and microbial communities in ways that alter how much toxic metals plants absorb through their roots. This is concerning for human health because microplastic-contaminated agricultural soil could lead to crops that contain higher levels of dangerous heavy metals.
Reprogramming of microbial community in barley root endosphere and rhizosphere soil by polystyrene plastics with different particle sizes
Barley plants grown in polystyrene microplastic- and nanoplastic-contaminated soil showed altered microbial communities in both the root endosphere and rhizosphere, suggesting plastic pollution can reshape plant-associated microbiomes. These shifts could have downstream consequences for plant health and soil nutrient cycling.
Rhizosphere microbial activities in response to combined effects of drought and microplastic
Researchers studied how combined drought stress and microplastic contamination affect rhizosphere microbial activities, finding that microplastics exacerbated drought-induced suppression of soil enzyme activities and altered microbial community structure around plant roots.
Influence of soil microplastic contamination on maize (Zea mays) development and microbial dynamics
Researchers grew maize (corn) in soil contaminated with varying amounts of microplastics and found that higher microplastic levels disrupted soil bacteria and fungi, caused leaf damage like yellowing and tissue death, and led to elevated heavy metals in plant tissue above safe limits. The results point to serious risks microplastics pose to crop health, soil ecosystems, and food safety.
Effect of microplastics on the soil-plant system: A perspective on rhizosphere microbial community and soil element cycling
This study provides supporting dataset for a review examining how microplastics affect soil-plant systems, with a focus on rhizosphere microbial community composition and element cycling processes in contaminated soils.
Deciphering the response of nodule bacteriome homeostasis in the bulk soil-rhizosphere-root-nodule ecosystem to soil microplastic pollution
Researchers examined how polyethylene microplastic contamination in soil affects the bacterial communities associated with legume plant root nodules. They found that microplastic treatments accelerated nodule formation but disrupted the balance of beneficial nitrogen-fixing bacteria in the nodules. The study suggests that soil microplastic pollution may interfere with the symbiotic relationship between legume crops and their nitrogen-fixing bacterial partners.
Microplastic-contamination can reshape plant community by affecting soil properties
Researchers investigated how polyethylene and polypropylene microplastics affect naturally germinated plant communities by altering soil properties. The study found that microplastics changed soil nutrient availability, decreased community stability, and shifted plant species composition, with total phosphorus identified as the strongest driver of changes in plant community structure.
Microplastics from agricultural mulch films: a threat to growth promoting abilities of bacteria?
Researchers tested how microplastics shed from agricultural plastic mulch films affect soil bacteria that promote plant growth, finding that mulch-derived microplastics reduced the abundance and activity of key plant growth-promoting bacteria. The results suggest agricultural plastic use could undermine soil health and crop productivity.
Rhizosphere microbiome metagenomics in PGPR-mediated alleviation of combined stress from polypropylene microplastics and Cd in hybrid Pennisetum
Researchers found that beneficial soil bacteria (PGPR) can help plants cope with the combined stress of polypropylene microplastics and the toxic heavy metal cadmium. The bacteria improved plant growth by 8-42% under contaminated conditions by reshaping the microbial community around plant roots. This study offers a potential strategy for maintaining crop productivity in farmland contaminated with both microplastics and heavy metals.