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20 resultsShowing papers similar to Impact of microplastics on bioaccumulation of heavy metals in rape (Brassica napus L.)
ClearMicroplastic-Mediated Heavy Metal Uptake in Lettuce (Lactuca sativa L.): Implications for Food Safety and Agricultural Sustainability
Researchers grew lettuce in contaminated soil mixed with different types of microplastics, including fibers, glitter, and fragments from bags and bottles. They found that microplastics altered how heavy metals like lead, cadmium, and copper moved through the soil and into the plants, sometimes increasing uptake of toxic metals in roots while decreasing others in leaves. The results raise concerns about food safety in agricultural areas where both microplastic and heavy metal contamination overlap.
The Effect of Microplastics-Plants on the Bioavailability of Copper and Zinc in the Soil of a Sewage Irrigation Area
Researchers examined how different concentrations of microplastics affect the bioavailability of copper and zinc in sewage-irrigated soils, finding that microplastics can alter heavy metal mobility and plant uptake, with implications for food safety in contaminated agricultural areas.
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.
Toxicity and fate of cadmium in hydroponically cultivated lettuce (Lactuca sativa L.) influenced by microplastics
Researchers found that PVC microplastics changed how lettuce plants absorb the toxic heavy metal cadmium when both were present in the growing water. The microplastics initially absorbed cadmium from the water but then altered the plant's uptake patterns, affecting where the metal accumulated in roots versus leaves. This matters because microplastics in agricultural water could change how toxic metals end up in the edible parts of vegetables people eat.
Influence of polyethylene microplastics on Brassica rapa: Toxicity mechanism investigation
Researchers exposed the fast-growing plant Brassica rapa (related to turnip and cabbage) to polyethylene microplastics that had been degraded by sunlight, finding that the plastics stunted plant growth by up to 51% and triggered cellular stress responses. Genetic analysis revealed the microplastics disrupted the plant's immune and growth pathways, providing insight into how plastic pollution in agricultural soil could affect food crops.
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.
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.
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.
Effects of naturally aged microplastics on arsenic and cadmium accumulation in lettuce: Insights into rhizosphere microecology
Researchers studied how naturally aged microplastics in soil affect the uptake of arsenic and cadmium by lettuce. At low concentrations, microplastics actually reduced heavy metal absorption and helped plant growth, but at higher concentrations they increased the amount of toxic metals taken up by the lettuce. This means microplastic-contaminated farmland could lead to higher levels of heavy metals in salad greens and other vegetables that people eat.
Interactive effects of polystyrene microplastics and Pb on growth and phytochemicals in mung bean (Vigna radiata L.)
Researchers studied the combined effects of polystyrene microplastics and lead on mung bean plants. They found that when both pollutants were present together, the damage was more severe, reducing plant weight, impairing photosynthesis, and disrupting chlorophyll production and enzyme activity. The study suggests that microplastics and heavy metals can interact to create amplified harmful effects on crop plants in contaminated agricultural environments.
Different effects and mechanisms of polystyrene micro- and nano-plastics on the uptake of heavy metals (Cu, Zn, Pb and Cd) by lettuce (Lactuca sativa L.)
Researchers investigated how polystyrene micro- and nanoplastics affect the uptake of heavy metals by lettuce grown in contaminated soil. They found that nanoplastics increased the accumulation of copper and zinc in lettuce leaves, while microplastics had the opposite effect for some metals. The study reveals that plastic particle size plays a critical role in determining whether microplastics worsen or reduce heavy metal contamination in food crops.
Pesticide bioaccumulation in radish produced from soil contaminated with microplastics
Researchers examined how microplastics in soil affect the bioaccumulation of pesticides in radishes, finding that aged microplastics enhanced the uptake of chlorpyrifos into the edible root. The study suggests that the combination of microplastics and pesticide mixtures in agricultural soils may increase food safety risks beyond what would be expected from individual contaminants alone.
Meta-analysis of impacts of microplastics on plant heavy metal(loid) accumulation
A meta-analysis of 3,226 observations found that microplastics promoted plant uptake of cadmium (11%), lead (30%), and copper (47.1%) in shoots, but decreased arsenic accumulation by 22.6%. Microplastics increased available soil concentrations of these metal cations while lowering soil pH, with machine learning revealing that soil pH and total heavy metal concentration are the primary drivers of plant metal accumulation.
The role of microplastic pollution in the modification of the physicochemical properties of arable soil and uptake of potential toxic elements by plants
Researchers conducted a series of studies analyzing how microplastic pollution modifies the physicochemical properties of arable soil and affects the uptake of potentially toxic heavy metals by plants, beginning with a comprehensive literature review of microplastic interactions with plant physiology, metals, pesticides, and pathogens.
Combined Exposure to Polyethylene Microplastics and Copper Affects Growth and Antioxidant Responses in Rice Seedlings
Researchers exposed rice seedlings to polyethylene microplastics and copper both individually and in combination and found that microplastics significantly enhanced copper uptake, increasing accumulation by about 25% compared to copper alone. While microplastics alone had minimal effects on growth, the combined exposure intensified oxidative stress in roots and altered antioxidant defense responses. The study demonstrates that microplastics can increase the bioavailability and toxicity of heavy metals in agricultural crop systems.
Unveiling the impacts of biodegradable microplastics on cadmium toxicity, translocation, transformation, and metabolome in lettuce
Researchers studied how biodegradable microplastics interact with cadmium contamination in lettuce and found that the combination worsened the toxic effects on plant growth compared to cadmium alone. The biodegradable plastics increased cadmium accumulation in the edible parts of the lettuce and altered how the metal was distributed within plant cells. The findings raise concerns about using biodegradable plastic mulch in soils already contaminated with heavy metals, as it may increase the amount of toxic metals that end up in food crops.
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.
Micro plastic driving changes in the soil microbes and lettuce growth under the influence of heavy metals contaminated soil
Researchers studied how microplastics interact with heavy metals in contaminated soil and their combined effects on lettuce growth and soil bacteria. Different types of microplastics altered soil chemistry and changed which microbes thrived, sometimes making heavy metals more available to plants. The study suggests that microplastic-contaminated agricultural soil could affect both the safety and nutritional quality of leafy vegetables that people eat.
Understanding the Role of Low-Dose Polystyrene Microplastic in Copper Toxicity to Rice Seed (Oryza sativa L.)
This study explored how polystyrene microplastics interact with copper toxicity in rice seeds. Researchers found that microplastics actually reduced copper's harmful effects by physically accumulating on seed coats and blocking copper absorption, lowering the amount of copper taken up by seedlings by about 34%. The findings highlight how microplastics can alter the way other environmental contaminants affect plants.
Effect of foliar and root exposure to polymethyl methacrylate microplastics on biochemistry, ultrastructure, and arsenic accumulation in Brassica campestris L.
Researchers found that root exposure to polymethyl methacrylate microplastics caused stronger physiological damage in rapeseed, while foliar exposure increased arsenic accumulation by up to 76%, revealing route-dependent phytotoxicity.