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20 resultsShowing papers similar to Potential synergistic effect of polystyrene nanoplastics on cadmium toxicity to Sedum alfredii Hance
ClearPolystyrene 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.
Individual and Combined Effects of Nanoplastics and Cadmium on the Rhizosphere Bacterial Community of Sedum alfredii Hance
When polystyrene nanoplastics and cadmium co-occur in soil, they act synergistically to disrupt the bacterial community around plant roots (rhizosphere), reducing the diversity of beneficial bacteria by more than what either pollutant does alone. High concentrations of nanoplastics combined with cadmium significantly increased the availability of cadmium in soil by 4%, potentially increasing uptake by plants. This matters for both food safety — since Sedum alfredii is used in phytoremediation of heavy-metal-contaminated sites — and for understanding how combined pollution stresses affect soil health.
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.
Do polystyrene nanoplastics affect the toxicity of cadmium to wheat (Triticum aestivum L.)?
Researchers investigated whether polystyrene nanoplastics affect the toxicity of cadmium to wheat plants. The study found that nanoplastics could alter how cadmium interacts with wheat, potentially modifying the uptake and toxic effects of the heavy metal, suggesting that the co-occurrence of nanoplastics and heavy metals in agricultural soils may create complex interactions affecting crop health.
Effect of cadmium and polystyrene nanoplastics on the growth, antioxidant content, ionome, and metabolism of dandelion seedlings
This study examined how polystyrene nanoplastics interact with cadmium, a toxic heavy metal, and found that the combination worsened the toxic effects on dandelion seedlings beyond what either pollutant caused alone. The findings highlight that nanoplastics can change how heavy metals behave in the environment, potentially increasing the amount of toxic metals that enter the food chain through contaminated plants.
Mechanistic Insights into the Effects of Aged Polystyrene Nanoplastics on the Toxicity of Cadmium to Triticum Aestivum
This study examined how aged polystyrene nanoplastics interact with the heavy metal cadmium to affect wheat plants. Researchers found that the aging process increases the nanoplastics' ability to absorb cadmium, which can alter how the metal is taken up by crops, raising questions about combined contaminant exposure through the food supply.
Antagonistic effect of polystyrene nanoplastics on cadmium toxicity to maize (Zea mays L.)
Researchers studied the combined effects of polystyrene nanoplastics and cadmium on maize plants and found that nanoplastics actually reduced cadmium toxicity. The study suggests that nanoplastics can adsorb cadmium and limit its uptake by plant roots, though both contaminants individually reduced plant growth and triggered oxidative stress responses.
Effect of cadmium on polystyrene transport in parsley roots planted in a split-root system and assessment of the combined toxic effects
Researchers used a split-root system to study how cadmium affects the movement of polystyrene micro and nanoplastics in parsley plants. They found that plastic nanoparticles traveled through the plant's internal transport system from contaminated roots to clean roots, but cadmium reduced this movement by changing the plastics' surface charge. The study shows that in contaminated soil, heavy metals and microplastics interact in complex ways that affect how much plastic ends up in edible crops.
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.
Synergistic Effectsof Polystyrene Nanoplastics andCadmium on the Metabolic Processes and Their Accumulation in HydroponicallyGrown Lettuce (Lactuca sativa)
Hydroponically grown lettuce co-exposed to cadmium and polystyrene nanoplastics accumulated 61% more cadmium and more nanoplastics than singly-exposed plants, with combined exposure causing greater oxidative stress and growth inhibition.
Assessing stress responses in potherb mustard (Brassica juncea var. multiceps) exposed to a synergy of microplastics and cadmium: Insights from physiology, oxidative damage, and metabolomics
Researchers found that microplastics in soil increased the amount of cadmium, a toxic heavy metal, that mustard green plants absorbed, while also reducing crop yields and photosynthesis. Higher concentrations of microplastics made more cadmium available in the soil, leading to greater accumulation of the metal in the plants. This raises food safety concerns because vegetables grown in microplastic-contaminated soil could contain higher levels of toxic metals that are harmful to human health.
Synergistic modulation of Lead (II) bioavailability by polyethylene terephthalate microplastics and insights into assimilation kinetics in Canna indica
Scientists found that tiny plastic particles (microplastics) in soil can make plants absorb up to 250% more lead, a toxic heavy metal that's harmful to humans. This happens because the plastic pieces act like a delivery system, carrying more lead into plants that we might eventually eat. This research suggests that areas with plastic pollution in the soil could pose greater health risks than previously thought, especially for crops grown in contaminated areas.
Microplastic fragments in sand alleviate the negative effects of heavy metals on plants
A mesocosm experiment found that microplastic fragments in substrate unexpectedly reduced cadmium uptake by plants despite increasing the metal's bioavailability in the soil — suggesting microplastics alter the chemistry of how plants access heavy metals through mechanisms not related to pH or soil moisture. The non-hyperaccumulator Arabidopsis thaliana showed increased biomass when exposed to both cadmium and microplastics together compared to either stressor alone. These counterintuitive interactions highlight how microplastics can complicate predicting heavy metal toxicity in contaminated soils.
Phytotoxic effects of polyethylene microplastics combined with cadmium on the photosynthetic performance of maize (Zea mays L.)
Researchers studied how polyethylene microplastics combined with cadmium, a toxic heavy metal, affect photosynthesis in two varieties of maize. They found that microplastics generally worsened cadmium's negative effects on the plants' ability to capture light energy and convert it to growth, though responses differed between maize varieties. The study suggests that microplastic pollution in agricultural soils could amplify the harm caused by heavy metal contamination to crop productivity.
Effects of Co-Contamination of Microplastics and Cd on Plant Growth and Cd Accumulation
Researchers investigated how two types of microplastics, high-density polyethylene and polystyrene, at various concentrations affect cadmium uptake and toxicity in maize plants grown in agricultural soil. The study found that while polyethylene alone had no significant effect, polystyrene at higher doses altered cadmium accumulation patterns, suggesting that different plastic types may interact differently with heavy metals in soil.
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.
Microplastics in Soil Increase Cadmium Toxicity: Implications for Plant Growth and Nutrient Imbalance
A pot experiment showed that adding polyethylene microplastics to soil contaminated with cadmium made the toxic metal more available to plants, increasing cadmium uptake in both roots and shoots. The combined exposure reduced crop yields by up to 38% and disrupted the plant's ability to absorb essential nutrients like nitrogen and phosphorus. This research is important for food safety because it shows microplastics in farm soil can make heavy metal contamination worse, potentially increasing toxic metal levels in crops people eat.
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.
Microplastics alter cadmium accumulation in different soil-plant systems: Revealing the crucial roles of soil bacteria and metabolism
A study found that microplastics in soil can change how much cadmium, a toxic heavy metal, is absorbed by food crops, with the effects varying depending on soil type and the amount of plastic present. By altering soil chemistry and bacterial communities, microplastics reshape how pollutants move through farmland and into the food we eat.