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61,005 resultsShowing papers similar to Understanding the Role of Low-Dose Polystyrene Microplastic in Copper Toxicity to Rice Seed (Oryza sativa L.)
ClearThe Effects of Polystyrene Microplastics and Copper Ion Co-Contamination on the Growth of Rice Seedlings
Researchers studied how polystyrene microplastics and copper ions interact when both are present in the water supply of rice seedlings. They found that microplastics actually reduced copper toxicity by absorbing the metal ions, but both pollutants weakened the plant's antioxidant defenses. The study suggests that microplastics and heavy metals interact in complex ways in agricultural systems, with implications for crop health and food safety.
Mitigating potential of polystyrene microplastics on bioavailability, uptake, and toxicity of copper in maize (Zea mays L.)
This study found that polystyrene microplastics in soil actually reduced copper toxicity in maize plants by binding to the copper and making it less available for plant uptake. While this might seem beneficial, it means microplastics are changing how nutrients and metals move through agricultural soil in unpredictable ways. The findings highlight that microplastic contamination in farmland can alter the chemistry of soil in complex ways that affect crop nutrition and food safety.
Effects of Polypropylene Microplastics and Copper Contamination on Rice Seedling Growth
Researchers studied how polypropylene microplastics and copper contamination individually and jointly affect rice seedling growth in hydroponic conditions. The study found that microplastics alone slightly promoted growth, while copper inhibited it, and the combination reduced copper accumulation in seedlings compared to copper alone, suggesting complex interactions between these pollutants in agricultural settings.
Effects of polystyrene microplastic on uptake and toxicity of copper and cadmium in hydroponic wheat seedlings (Triticum aestivum L.)
This study investigated how polystyrene microplastics interact with the heavy metals copper and cadmium in hydroponic wheat seedlings. Researchers found that while the microplastics alone did not significantly affect wheat growth, they adsorbed heavy metals and actually reduced the amount of copper and cadmium the plants absorbed. The findings suggest that in some cases microplastics may lessen heavy metal toxicity in plants by binding these metals and making them less available for uptake.
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.
Polystyrene microplastics enhanced the toxicity of cadmium to rice seedlings: Evidence from rice growth, physiology, and element metabolism
Polystyrene microplastics combined with cadmium -- a toxic heavy metal -- caused more damage to rice seedlings than either pollutant alone, reducing growth and disrupting the balance of essential nutrients. At higher concentrations, the microplastics significantly increased how much cadmium the plants absorbed into their above-ground parts. This matters for human health because rice is a staple food for billions of people, and microplastic-contaminated farmland could lead to higher heavy metal levels in the food supply.
Effect of Polystyrene Microplastics on Rice Seed Germination and Antioxidant Enzyme Activity
Researchers tested how different concentrations of polystyrene microplastics affect rice seed germination, root growth, and antioxidant enzyme activity. They found that at higher concentrations, the microplastics inhibited root growth and triggered oxidative stress responses in the seedlings. The study indicates that microplastic contamination in agricultural soils could interfere with early crop development, potentially affecting food production.
Influence of polystyrene microplastic and nanoplastic on copper toxicity in two freshwater microalgae
Researchers studied how polystyrene microplastics and nanoplastics affect the toxicity of copper to two freshwater microalgae species over extended exposure periods. They found that microplastics generally reduced copper toxicity by adsorbing copper ions, while nanoplastics had more variable effects depending on concentration and algal species. The study highlights that the size of plastic particles plays an important role in how they modify the bioavailability and toxicity of heavy metals in aquatic environments.
Size-dependent effects of polystyrene micro- and nanoplastics on the quality of rice grains and the metabolism mechanism
Researchers found that tiny polystyrene plastic particles (under 100 nanometers) were absorbed by rice roots and traveled up into the grain, reducing protein content by up to 29%. The smallest particles weakened the plant's natural defenses by disrupting sugar metabolism. This means microplastics in soil could be silently lowering the nutritional quality of rice that people eat.
Effects of microplastics on growth and metabolism of rice (Oryza sativa L.)
Researchers found that polystyrene and polyvinyl chloride microplastics inhibited rice growth and disrupted ionic homeostasis and antioxidant metabolism in a dose-dependent manner, with PVC microplastics causing more severe effects than polystyrene.
Effects of Microplastics on the Mineral Elements Absorption and Accumulation in Hydroponic Rice Seedlings (Oryza sativa L.)
Researchers exposed rice seedlings to different concentrations of polyethylene microplastics in hydroponic conditions and measured the effects on mineral nutrient absorption. They found that while microplastics did not affect shoot growth, they significantly altered the uptake and distribution of essential mineral elements in the plants. The study suggests that microplastic contamination in agricultural settings could disrupt crop nutrition even without visible growth impacts.
Polystyrene microplastics protect lettuce (Lactuca sativa) from the hazardous effects of Cu(OH)2 nanopesticides
Polystyrene microplastics were found to partially protect lettuce from the phytotoxic effects of copper hydroxide nanowire nanopesticides, likely by adsorbing copper ions and reducing their bioavailability in the rhizosphere. The interaction illustrates how microplastics in agricultural soils can modify the fate and toxicity of co-applied agrochemicals.
Impact of microplastics on bioaccumulation of heavy metals in rape (Brassica napus L.)
Researchers found that microplastics influenced the bioaccumulation of copper and lead in rapeseed plants, with effects varying by microplastic concentration and heavy metal type, revealing how plastic pollution may alter contaminant uptake in crops.
Effects of microplastics on arsenic uptake and distribution in rice seedlings
Researchers investigated how polystyrene micro- and nanoplastics affect arsenic uptake in rice seedlings grown in a hydroponic system. They found that nanoplastics (82 nm) increased arsenic accumulation in rice leaves by 12 to 37 percent, while larger microplastics (200 nm) reduced it. The study suggests that the size of plastic particles plays an important role in determining how they influence heavy metal uptake in crop plants, with implications for food safety.
Polystyrene microplastic attenuated the toxic effects of florfenicol on rice (Oryza sativa L.) seedlings in hydroponics: From the perspective of oxidative response, phototoxicity and molecular metabolism
This study found that when polystyrene microplastics and the antibiotic florfenicol are present together in water, the microplastics actually reduced the antibiotic's toxic effects on rice seedlings. The microplastics caused the antibiotic to clump together, reducing how much the plant absorbed. While this might sound positive, it shows that microplastics change how other pollutants behave in unpredictable ways, which complicates our understanding of real-world environmental contamination.
Antidote or Trojan horse for submerged macrophytes: Role of microplastics in copper toxicity in aquatic environments
Researchers investigated whether polyethylene microplastics act as an antidote or a Trojan horse for copper toxicity to submerged aquatic plants. The study found that microplastics reduced dissolved copper concentrations through adsorption but could then release copper-loaded particles that were taken up by plants. The results suggest that microplastics may initially reduce copper toxicity in water but ultimately serve as carriers that deliver copper directly into plant tissues.
Interactions between phenanthrene and polystyrene micro/nano plastics: Implications for rice (Oryza sativa L.) toxicity.
Researchers investigated how polystyrene micro/nano plastics of different particle sizes and surface charges interact with phenanthrene and affect toxicity in rice (Oryza sativa L.), finding that these interactions significantly alter the biological effects and potential health risks of combined contaminant exposure.
Exploration of Single and Co-Toxic Effects of Polypropylene Micro-Plastics and Cadmium on Rice (Oryza sativa L.)
Researchers investigated the single and combined toxic effects of polypropylene microplastics and cadmium on rice plants, finding that co-exposure altered cadmium bioavailability and produced compounded negative effects on plant growth and development.
Environmental efficacy of polyethylene microplastics: Enhancing the solidification of CuO nanoparticles and reducing the physiological toxicity to peanuts
Researchers examined how polyethylene microplastics interact with copper oxide nanoparticles in soil and their combined effects on peanut plant growth. They found that while polyethylene alone had minimal impact, it reduced the dissolution and absorption of toxic copper oxide nanoparticles, effectively lessening their harmful effects on peanut biomass. The study suggests that microplastics may sometimes act as a moderating influence on the toxicity of co-occurring metal nanoparticle pollutants in agricultural settings.
Investigating the Impact of Microplastics Type of Polyethylene, Polypropylene, and Polystyrene on Seed Germination and Early Growth of Rice Plants
Researchers investigated how three common types of microplastics, polyethylene, polypropylene, and polystyrene, affect rice seed germination and early seedling growth. They found that microplastic exposure altered root development and shoot growth, with the effects varying by polymer type. The study raises concerns about how microplastic-contaminated agricultural soils could affect staple crop establishment and food production.
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.
Effect of High-Density Polyethylene, Polyvinyl Chloride and Low-Density Polyethylene Microplastics on Seeding of Paddy
This study tested how three common types of plastic microparticles affect rice seedling growth, finding that they can interfere with early plant development. The results matter for food safety because rice is a staple crop for billions of people, and microplastic contamination in agricultural soil could affect crop yields and potentially introduce plastic particles into the food supply.
Translocation and chronic effects of microplastics on pea plants (Pisum sativum) in copper-contaminated soil
Researchers studied how polystyrene nanoplastics affect pea plants grown in copper-contaminated soil over a full growing season. They found that the combination of nanoplastics and copper reduced crop yield, impaired nutritional quality, and that nanoplastic particles were taken up and transported throughout the plant tissues. The study suggests that microplastic contamination in polluted agricultural soils may compound existing threats to crop productivity and food safety.
Microplastics affect rice (Oryza sativa L.) quality by interfering metabolite accumulation and energy expenditure pathways: A field study
Researchers conducted a field study examining how polystyrene microplastics affect rice grain quality at the molecular level using metabolomic and transcriptomic analysis. They found that microplastic exposure interfered with metabolite accumulation and energy pathways in the rice plants, ultimately reducing grain quality. The study provides real-world evidence that microplastic contamination in agricultural soils can directly compromise the nutritional quality of a major food crop.