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61,005 resultsShowing papers similar to Strigolactones alleviate the toxicity of polystyrene nanoplastics (PS-NPs) in maize (Zea mays L.)
ClearBrassinosteroids alleviate nanoplastic toxicity in edible plants by activating antioxidant defense systems and suppressing nanoplastic uptake
Scientists discovered that nanoplastics accumulate in the edible parts of tomato plants, but treating the plants with a natural hormone called brassinosteroids reduced nanoplastic uptake and reversed the growth damage. The hormone works by turning off water-channel genes that nanoplastics use to enter the plant. This finding matters for food safety because it suggests a practical way to reduce the amount of nanoplastics people consume through fruits and vegetables.
Astragalus Polysaccharides Ameliorate the Toxic Effects of Polystyrene Nanoplastics on Boar Sperm
Scientists found that tiny plastic particles called nanoplastics can damage sperm cells by causing harmful chemical reactions, but a natural compound from the Astragalus plant can help protect against this damage. This study used pig sperm in lab dishes, so we don't know yet if the same protection would work in humans. The findings matter because microplastics are everywhere in our environment and food, and this research suggests natural antioxidants might help reduce their potential harm to reproductive health.
Titanium dioxide nanoparticles alleviates polystyrene nanoplastics induced growth inhibition by modulating carbon and nitrogen metabolism via melatonin signaling in maize
Researchers found that titanium dioxide nanoparticles can help protect maize plants from the growth-inhibiting effects of polystyrene nanoplastics. The protective mechanism works through the plant hormone melatonin, which regulates carbon and nitrogen metabolism when the nanoparticles are present. The study suggests that certain nanoparticles could potentially be used as agricultural tools to help crops cope with nanoplastic contamination in soil.
Polystyrene Nanoplastics Impair Transcriptional Resilience to Salt Stress in Rice
Scientists found that tiny plastic particles (nanoplastics) make it much harder for rice plants to recover from salt stress, even after the stress is removed. The plastic particles disrupt the plants' ability to turn the right genes on and off, preventing them from bouncing back to normal growth. This matters because nanoplastics are increasingly found in our food system, and this research suggests they could harm crop resilience and potentially affect the nutritional quality of foods we eat.
Melatonin Defends Against the Oxidative Stress by Preventing the Uptake of Nanoplastics and Activating the Antioxidant System in Paeonia ostii.
Scientists found that melatonin (a natural hormone) can protect plants from tiny plastic particles by blocking them from entering plant cells and reducing harmful damage inside the plant. This matters because these microscopic plastics are spreading everywhere in our environment and getting into our food chain. While this study only looked at plants, it suggests melatonin might help protect living things from plastic pollution - though more research is needed to know if this applies to humans.
Molecular mechanisms of toxicity and detoxification in rice (Oryza sativa L.) exposed to polystyrene nanoplastics
Researchers studied how polystyrene nanoplastics affect rice seedlings at the molecular level. They found that nanoplastic exposure significantly reduced root and shoot growth by over 50%, while triggering oxidative stress and activating genes related to both toxicity and defense responses. The study provides new insights into how crop plants respond to nanoplastic contamination at the genetic and physiological level.
The impact of polystyrene nanoplastics on lignin biosynthesis in Arabidopsis thaliana (L.)
Researchers exposed Arabidopsis plants to polystyrene nanoplastics and found that the particles penetrate root tissues and trigger a concentration-dependent buildup of lignin — the structural polymer that stiffens plant cell walls — as a defensive stress response, accompanied by increased oxidative damage markers and upregulation of lignin-biosynthesis genes.
Effects of polystyrene nanoplastics exposure on in vitro-grown Stevia rebaudiana plants
Researchers exposed stevia plants to polystyrene nanoplastics at various concentrations and tracked their uptake and effects on plant growth and metabolite production. The study found that at higher concentrations, nanoplastics accumulated in roots and traveled to leaves, reducing plant growth while increasing stress-related metabolite production. Interestingly, low-dose nanoplastic exposure actually boosted production of steviol glycosides, the plant's sweetening compounds, suggesting a hormetic dose-response pattern.
Toxicological effects and molecular metabolic of polystyrene nanoplastics on soybean (Glycine max L.): Strengthening defense ability by enhancing secondary metabolisms
Researchers exposed soybean seedlings to polystyrene nanoplastics and found that the tiny particles were absorbed by the roots and transported throughout the plant. The nanoplastics caused oxidative stress and slowed growth, though the plants activated defense mechanisms through secondary metabolism. This is concerning because crops that absorb nanoplastics could transfer them to humans through the food supply.
The impacts of nanoplastic toxicity on the accumulation, hormonal regulation and tolerance mechanisms in a potential hyperaccumulator - Lemna minor L.
Researchers studied the toxic effects of polystyrene nanoplastics on the freshwater plant Lemna minor, a species used extensively in phytoremediation. The study found that nanoplastic exposure affected plant growth and triggered hormonal responses, while also revealing tolerance mechanisms that the plant employs to cope with nanoplastic stress.
Effects of Microplastic on Rice Seed Germination Mitigated by Brassinolide
Researchers exposed rice seeds to polystyrene microplastics and nanoplastics at concentrations up to 1,500 mg/L and tested whether 2,4-epibrassinolide (a plant growth hormone) could mitigate toxicity. Microparticles had minimal effect on germination, but nanoplastics significantly inhibited seedling growth at high concentrations, and brassinolide supplementation partially reversed nanoplastic-induced oxidative stress and growth inhibition.
Micro (nano) plastics uptake, toxicity and detoxification in plants: Challenges and prospects
This review examines how micro and nanoplastics are taken up by plants, covering their toxic effects on growth and gene expression as well as potential detoxification strategies. Smaller nanoplastics can penetrate plant cell walls and accumulate in tissues, causing oxidative stress and genetic damage. The findings are important for human health because contaminated crops could transfer microplastics directly into the food supply.
Melatonin reduces nanoplastic uptake, translocation, and toxicity in wheat
Researchers investigated whether melatonin could reduce the harmful effects of polystyrene nanoplastics on wheat plants. They found that melatonin application significantly decreased nanoplastic uptake by roots and their transport to shoots by regulating aquaporin gene expression and activating antioxidant defense systems. The study suggests that melatonin may serve as a protective agent to help mitigate nanoplastic toxicity in crops.
Response of soybean (Glycine max L.) seedlings to polystyrene nanoplastics: Physiological, biochemical, and molecular perspectives
Researchers examined the effects of polystyrene nanoplastics on soybean seedlings in a hydroponic experiment and confirmed that the nanoparticles were taken up by plant roots. The study found that nanoplastic exposure negatively affected growth, increased mineral content in roots and leaves, caused oxidative stress, and altered gene expression related to stress response and hormone signaling pathways.
Nanotoxicological effects and transcriptome mechanisms of wheat (Triticum aestivum L.) under stress of polystyrene nanoplastics
Researchers studied how polystyrene nanoplastics affect wheat plants at the molecular level using gene expression analysis. They found that nanoplastic exposure disrupted genes involved in photosynthesis, hormone signaling, and stress responses, ultimately reducing plant growth. The study provides new insights into how nanoplastic contamination in agricultural soils could harm crop development at a fundamental biological level.
Photoaging Exacerbates Nanoplastic Phytotoxicity and Differentially Activates Defense Mechanisms in Wild versus Cultivated Maize
Researchers compared the phytotoxicity of pristine versus photoaged polystyrene nanoplastics in cultivated maize and its wild progenitor, finding that photoaging greatly amplified toxicity and that wild maize activated stronger defense responses than cultivated varieties.
Microplastic/nanoplastic toxicity in plants: an imminent concern
This review examines the growing body of research on how microplastics and nanoplastics affect terrestrial plants, from root uptake to changes in growth and gene expression. Researchers found that these particles can alter plant physiology and biochemistry at varying degrees depending on particle size and concentration. The study calls for more research on how plastic contamination in soil may ultimately affect food crop quality and human health through the food chain.
Toxicity effects of nanoplastics on soybean (Glycine max L.): Mechanisms and transcriptomic analysis
Researchers exposed soybean plants to polystyrene nanoplastics and observed inhibited stem and root growth, increased oxidative stress, and disrupted photosynthesis. Transcriptomic analysis revealed that nanoplastics altered the expression of genes involved in plant stress responses, hormone signaling, and metabolic pathways. The study suggests that nanoplastic contamination in agricultural soils could negatively affect crop growth and yield at the molecular level.
Microplastics: toxicity and tolerance in plants
Researchers reviewed how microplastics harm both land plants and water plants by disrupting their growth, nutrient uptake, and genetic function, while also triggering the plants' own defense systems in response. Understanding how plants tolerate microplastic exposure is important because contaminated crops could eventually affect human health through the food chain.
[Effect of Organic Fertilizers on the Accumulation and Distribution of Polystyrene Nanoplastics in Cotton Plants].
This pot experiment found that cotton plants absorb polystyrene nanoplastics through their roots and transport them into stems, but adding organic fertilizer reduced the amount transferred upward, with most nanoplastics retained in roots. While nanoplastics alone reduced plant growth indicators, organic fertilizer partially offset these negative effects. The results suggest that organic soil amendments could help reduce the uptake and spread of nanoplastics in food crops, which has implications for agricultural food safety.
Polystyrene microplastics disturb the redox homeostasis, carbohydrate metabolism and phytohormone regulatory network in barley
Researchers exposed barley plants to polystyrene microplastics and found the particles accumulated in roots and stunted rootlet development by disrupting redox balance, carbohydrate metabolism enzymes, and phytohormone signaling pathways.
Effects of Exogenous Isosteviol on the Physiological Characteristics of Brassica napus Seedlings under Salt Stress
This study tested how a plant compound called isosteviol helps rapeseed plants cope with salt stress, finding it can boost growth and reduce damage from reactive oxygen species. While not about microplastics, the research is relevant because microplastic contamination in soil can worsen salt stress and oxidative damage in crops. Understanding how plants defend against environmental stress may help develop more resilient crops for contaminated farmland.
Transcriptomic and metabolomic responses of maize under conventional and biodegradable microplastic stress
Researchers studied how both conventional and biodegradable microplastics affect maize at the molecular level, finding that both types altered plant metabolism and triggered stress responses. The microplastics changed how the plants handled energy, photosynthesis, and hormone signaling, with effects varying by plastic type. This is concerning for food safety because microplastic-contaminated soil could change the nutritional quality or safety of crops that people eat.
The effects of Micro/Nano-plastics exposure on plants and their toxic mechanisms: A review from multi-omics perspectives.
A multi-omics review of micro/nanoplastic effects on plants found that plastic exposure disrupts gene expression, protein function, and metabolic pathways across multiple plant systems, with potential consequences for crop yield and agricultural food safety.