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61,005 resultsShowing papers similar to Individual and Combined Effects of Nanoplastics and Cadmium on the Rhizosphere Bacterial Community of Sedum alfredii Hance
ClearPotential synergistic effect of polystyrene nanoplastics on cadmium toxicity to Sedum alfredii Hance
**TLDR:** Scientists found that tiny plastic particles (nanoplastics) make the toxic metal cadmium even more dangerous when both pollutants are present in soil together. Plants exposed to both nanoplastics and cadmium absorbed much more of the poisonous cadmium than plants exposed to cadmium alone. This matters because these pollutants are increasingly common in our environment, and if plants take up more toxins, they could end up in our food supply.
[Effects of Combined Pollution of Microplastics and Cadmium on Microbial Community Structure and Function of Pennisetum hydridum Rhizosphere Soil].
Researchers investigated the combined effects of microplastics (polyethylene and polystyrene at different particle sizes and concentrations) and cadmium on the growth of Pennisetum hydridum and the microbial community structure and function of rhizosphere soil under pot conditions. The results showed that the type, size, and concentration of microplastics interacted with cadmium to differentially affect plant dry weight, cadmium accumulation, and soil microbial diversity indices.
Effects of polyethylene microplastics and cadmium co-contamination on the soybean-soil system: Integrated metabolic and rhizosphere microbial mechanisms
Researchers investigated how polyethylene microplastics and cadmium interact in soybean-soil systems and found that specific microplastic concentrations enhanced cadmium accumulation in roots under moderate contamination. Higher microplastic levels reduced beneficial soil bacteria like Sphingomonas and Bradyrhizobium and suppressed nitrogen-cycling functions. The study demonstrates that microplastics fundamentally alter heavy metal behavior through interconnected plant-metabolite-microbe interactions in agricultural soils.
Interactive effects of microplastics and cadmium on soil properties, microbial communities and bok choy growth
Researchers grew bok choy in soil amended with polyethylene microplastics (0.5-2% by weight) and cadmium to assess interactive effects on soil properties, microbial communities, and plant growth. Combined exposure produced distinct synergistic and antagonistic interactions compared to either pollutant alone, altering soil enzyme activity, bacterial diversity, and plant metal uptake.
Effects of combined microplastic and cadmium pollution on sorghum growth, Cd accumulation, and rhizosphere microbial functions
Researchers examined how different types and sizes of microplastics interact with cadmium, a toxic heavy metal, to affect sorghum growth and soil microbes. They found that the combined pollution generally increased plant stress and cadmium uptake, with effects varying by plastic type, particle size, and concentration. The study also revealed that the pollution mixture significantly altered soil bacterial communities and key metabolic pathways involved in nutrient cycling.
Beneficial microbial consortia effectively alleviated plant stress caused by the synergistic toxicity of microplastics and cadmium
Researchers found that combined pollution from microplastics (PVC) and the heavy metal cadmium creates a toxic effect in soil that is worse than either pollutant alone. However, applying beneficial bacteria to contaminated soil helped plants grow better and restored soil nutrients. These findings suggest that probiotic-like bacteria could help repair farmland damaged by microplastic and heavy metal pollution.
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.
Responses of Sorghum Growth and Rhizosphere–Plastisphere Microbiomes to Cadmium and Polypropylene Microplastic Co-Contamination
Researchers examined how combined cadmium and polypropylene microplastic contamination affects sorghum growth and the bacterial communities in both rhizosphere soil and on the plastic surfaces. They found that co-contamination inhibited sorghum development more severely than either pollutant alone, and the bacterial community on the plastic surface was structurally simpler with lower diversity than in surrounding soil. The study suggests that microplastics in contaminated soils can serve as distinct microbial habitats that differ significantly from the native soil environment.
Polyethylene nanoplastics, tebuconazole and cadmium affect soil-wheat system by altering rhizosphere microenvironment under single or combined exposure
This study examined how polyethylene nanoplastics interact with a pesticide and cadmium (a toxic metal) in soil where wheat is grown. When all three pollutants were present together, they caused more damage to the soil ecosystem and wheat plants than any single pollutant alone. The findings are concerning because agricultural soils often contain multiple contaminants simultaneously, and their combined effects on crop safety and human food quality may be worse than expected.
Polystyrene nanoplastics distinctly impact cadmium uptake and toxicity in Arabidopsis thaliana
In a study using the model plant Arabidopsis, polystyrene nanoplastics increased the uptake and accumulation of the toxic heavy metal cadmium in plant roots. The combined stress of nanoplastics and cadmium caused worse oxidative damage and growth problems than either pollutant alone. This is concerning because it means microplastics in agricultural soil could help toxic metals get into crops more easily, potentially increasing human exposure through food.
Synergistic Effects of Polystyrene Nanoplastics and Cadmium on the Metabolic Processes and Their Accumulation in Hydroponically Grown Lettuce (Lactuca sativa)
When lettuce was grown with both nanoplastics and the toxic metal cadmium, the plants absorbed 61-67% more of both contaminants compared to exposure to either one alone. The combined pollution triggered a stronger stress response in the plants and changed how they grew. This is concerning for human health because it means nanoplastics in agricultural soil could significantly increase the amount of toxic heavy metals that end up in salad greens and other food crops.
Polypropylene Microplastics and Cadmium: Unveiling the Key Impacts of Co-Pollution on Wheat–Soil Systems from Multiple Perspectives
Researchers found that polypropylene microplastics combined with cadmium co-pollution impaired wheat germination, reduced plant growth, and disrupted soil microbial communities more severely than either contaminant alone, demonstrating synergistic toxicity in an agriculturally important crop.
Coexistence of microplastics and Cd alters soil N transformation by affecting enzyme activity and ammonia oxidizer abundance
Researchers studied how the combined presence of microplastics and cadmium in soil affects nitrogen cycling, a process essential for soil fertility. They found that the pollutant mixture altered enzyme activity and shifted the balance of ammonia-oxidizing microbial communities more than either contaminant alone. The findings suggest that co-contamination of soils with microplastics and heavy metals could disrupt nutrient cycles critical for plant growth.
Plant growth-promoting bacteria modulate gene expression and induce antioxidant tolerance to alleviate synergistic toxicity from combined microplastic and Cd pollution in sorghum
Scientists found that a beneficial soil bacterium (Bacillus sp. SL-413) can help protect sorghum plants from the combined toxic effects of microplastics and cadmium, a heavy metal. The bacterium boosted plant growth, reduced harmful reactive oxygen species by up to 27%, and reactivated genes that the pollution had shut down. This research points to a nature-based solution for helping food crops survive in microplastic-contaminated soil.
Single and combined effects of polystyrene nanoplastics and Cd on submerged plants Ceratophyllum demersum L.
Researchers studied the combined effects of nanoplastics and cadmium, a toxic heavy metal, on the aquatic plant Ceratophyllum demersum. They found that nanoplastics worsened cadmium's harmful effects on plant growth, photosynthesis, and cellular health, reducing growth rates by over 35%. The study suggests that when nanoplastics and heavy metals co-occur in water, their combined impact on aquatic plants may be more severe than either pollutant alone.
Interactions of microplastics and cadmium on plant growth and arbuscular mycorrhizal fungal communities in an agricultural soil
Researchers studied how polyethylene and polylactic acid microplastics interact with cadmium contamination to affect maize growth and beneficial soil fungi in agricultural soil. While polyethylene showed minimal direct plant toxicity, high doses of polylactic acid significantly reduced maize biomass, and both plastic types altered the communities of root-associated fungi. The study suggests that co-contamination of microplastics and heavy metals in farmland can jointly disrupt plant health and soil ecosystems.
Plant growth-promoting bacteria improve the Cd phytoremediation efficiency of soils contaminated with PE–Cd complex pollution by influencing the rhizosphere microbiome of sorghum
Researchers found that adding beneficial bacteria to soil contaminated with both polyethylene microplastics and the toxic metal cadmium helped sorghum plants grow larger and absorb more cadmium from the soil, improving cleanup potential. This approach matters for food safety because using plants and bacteria to remove combined microplastic-heavy metal pollution from farmland could reduce the amount of these contaminants that enter the food supply.
[Plant Growth-promoting Bacteria Alleviate the Toxic Effects of Soil Microplastics and Heavy Metal Complex Pollution in Hybrid pennisetum].
Researchers investigated whether plant growth-promoting bacteria (Enterobacter and Bacillus spp.) could alleviate combined polypropylene microplastic and cadmium stress on Hybrid pennisetum in pot experiments, finding that inoculation improved plant growth and soil nutrient availability while shifting rhizosphere bacterial communities toward more beneficial compositions.
Effects of microplastics and cadmium on the soil-wheat system as single and combined contaminants
Researchers found that polyethylene and polypropylene microplastics combined with cadmium reduced wheat chlorophyll concentrations and affected soil-plant systems differently depending on pollution levels, revealing complex interaction effects between co-contaminants.
Fragmentation of nanoplastics driven by plant–microbe rhizosphere interaction during abiotic stress combination
In rhizosphere experiments, plant-microbe interactions under combined cadmium and nanoplastic stress generated fragmented nanoplastics that were taken up by plant roots, demonstrating that biotic soil processes can alter nanoplastic size and enhance plant exposure.
Coupled Effects of Polyethylene Microplastics and Cadmium on Soil–Plant Systems: Impact on Soil Properties and Cadmium Uptake in Lettuce
Researchers studied how polyethylene microplastics interact with cadmium contamination in soil and its effects on lettuce growth. The study found that microplastics combined with cadmium significantly decreased soil quality and that microplastics can alter cadmium uptake in plants, suggesting that co-contamination of agricultural soils with both pollutants may pose compounded risks to food crop safety.
Combined effects of microplastics and cadmium on the soil-plant system: Phytotoxicity, Cd accumulation and microbial activity
Researchers tested how different microplastic types combined with cadmium affect plant growth and soil health. Aged and biodegradable microplastics increased cadmium uptake in mustard greens more than fresh conventional plastics did. The study also found that microplastics altered soil microbial activity, suggesting that plastic pollution in farmland could change how plants absorb toxic metals from contaminated soil.
Screening of plant growth-promoting rhizobacteria helps alleviate the joint toxicity of PVC+Cd pollution in sorghum plants
Researchers isolated soil bacteria that promote plant growth and showed they can partially offset the combined toxicity of PVC microplastics and cadmium in sorghum, restoring soil nutrient availability and shifting rhizosphere bacterial communities in ways that support nitrogen and phosphorus cycling.
Assessing heterogeneous pollution risks from polystyrene micro(nano)plastics and cadmium to physiology and biochemistry in parsley via a split-root system
Researchers used a split-root system to study how polystyrene micro- and nanoplastics interact with cadmium to affect parsley growth under conditions mimicking real-world uneven soil contamination. They found that cadmium was the primary driver of root damage and oxidative stress, but these effects remained localized to the contaminated side, suggesting the plant can isolate damage. Excessive nanoplastics combined with cadmium on both sides of the root system triggered defense mechanisms that altered the plant's production of beneficial bioactive compounds.