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61,005 resultsShowing papers similar to The impact of polystyrene nanoplastics on lignin biosynthesis in Arabidopsis thaliana (L.)
ClearPolystyrene nanoplastics induce cell type-dependent secondary wall reinforcement in rice (Oryza sativa) roots and reduce root hydraulic conductivity
Researchers found that polystyrene nanoplastics penetrating rice roots trigger a cell-type-specific defense response in which the plant reinforces its secondary cell walls with lignin and suberin in key barrier tissues, increasing wall thickness by up to 22% while simultaneously reducing the root's ability to absorb water by nearly 15%.
Physiobiochemical and transcriptional responses of tobacco plants (Nicotiana tabacum L.) to different doses of polystyrene nanoplastics
Researchers examined how different concentrations of polystyrene nanoplastics affect tobacco plant growth at both the physiological and molecular levels. They found that higher doses caused oxidative stress, reduced photosynthesis, and triggered significant changes in gene expression related to stress responses. The study reveals that nanoplastic toxicity in plants is dose-dependent and involves complex molecular mechanisms beyond simple physical damage.
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.
Polystyrene nanoparticles induce concerted response of plant defense mechanisms in plant cells
Researchers exposed plant cell cultures from wheat, barley, carrot, and tomato to polystyrene nanoparticles and found that the plastic particles triggered oxidative stress responses across all species. The defense mechanisms activated varied by plant species, exposure duration, and nanoplastic concentration, with tomato cells appearing most susceptible to damage. The study demonstrates that nanoplastics can induce chain reactions in plant defense systems, raising concerns about the impact of plastic pollution on crop health.
Mechanistic insights into polystyrene nanoplastics (PSNPs) mediated imbalance of redox homeostasis and disruption of antioxidant defense system leading to oxidative stress in black mustard (Brassica nigra L.)
Researchers investigated how polystyrene nanoplastics affect black mustard seedlings and found that exposure led to reduced plant height, lower biomass, and damaged cell membranes. The nanoplastics disrupted the plants' antioxidant defense systems, causing an imbalance in their ability to manage oxidative stress. The study highlights that nanoplastic pollution in soil could pose a meaningful threat to crop growth and plant health.
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.
Ecotoxicity and genotoxicity of polystyrene microplastics on higher plant Vicia faba
Researchers exposed fava bean root tips to polystyrene microplastics and nanoplastics and found reduced biomass, increased oxidative stress, and genetic damage in the plant cells. The smaller nanoplastic particles caused more severe effects than the larger microplastics. The study suggests that plastic particle contamination in soil may threaten plant health at the cellular and genetic level.
Polypropylene microplastic exposure modulates multiple metabolic pathways in tobacco leaves, impacting lignin biosynthesis
This study exposed tobacco plants to polypropylene microplastics of different sizes and concentrations in soil and found that the particles disrupted multiple metabolic pathways, particularly lignin production which is important for plant structural strength. Nanoscale particles caused more severe effects than larger microplastics, altering gene expression and metabolite profiles. The findings show that microplastic contamination in soil can fundamentally change how plants grow and develop, with potential implications for crop quality.
Nanoplastic toxicity induces metabolic shifts in Populus × euramericana cv. '74/76' revealed by multi-omics analysis
Researchers used transcriptomic and metabolomic profiling to show that polystyrene nanoplastics accumulate in poplar tree roots, penetrate chloroplasts in leaves causing photosynthesis disruption, and trigger a metabolic shift from normal growth to defensive flavonoid production under severe exposure conditions.
Physiological and biochemical effects of polystyrene micro/nano plastics on Arabidopsis thaliana
Experiments on the model plant Arabidopsis showed that polystyrene nano- and microplastics reduced seed germination, stunted growth, lowered chlorophyll levels, and triggered oxidative stress in roots, with smaller particles and higher concentrations causing the most damage. These findings raise concerns about how microplastic contamination in agricultural soil could affect crop health and ultimately food production.
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.
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.
Multi-omics analysis reveals the molecular responses of Torreya grandis shoots to nanoplastic pollutant
Researchers used multi-omics analysis to examine how polystyrene nanoplastics affect Torreya grandis, an economically important tree species in China. They found that nanoplastic exposure disrupted the seedlings' metabolism and gene expression, particularly affecting pathways related to photosynthesis and stress responses. The study provides some of the first evidence that nanoplastic pollution can interfere with the molecular processes of higher terrestrial plants, not just aquatic organisms.
Impact of nanoplastics uptake on modulation of plant metabolism and stress responses: a multi-omics perspective on remediation and tolerance mechanisms
Researchers reviewed how nanoplastics accumulate in plant tissues and disrupt metabolism, finding that these particles impair nutrient uptake, trigger reactive oxygen species overproduction, and alter gene and protein expression, while multi-omics approaches are revealing the molecular stress-response networks that plants use to tolerate or remediate nanoplastic contamination.
Low temperature tolerance is impaired by polystyrene nanoplastics accumulated in cells of barley (Hordeum vulgare L.) plants
Barley plants irrigated with polystyrene nanoplastics accumulated the particles in cells and showed impaired cold tolerance during low temperature stress, with confocal imaging confirming that nanoplastics can cross the cell wall and accumulate in plant tissue.
Polystyrene nanoplastics affect seed germination, cell biology and physiology of rice seedlings in-short term treatments: Evidence of their internalization and translocation
Researchers found that polystyrene nanoplastics were absorbed by rice roots and translocated to shoots, impairing seed germination, seedling growth, and cell division while disrupting reactive oxygen species homeostasis in short-term treatments.
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.
Is the aquatic macrophyte Landoltia punctata tolerant to high concentrations of polystyrene nanoplastics?
Researchers tested whether the aquatic macrophyte Landoltia punctata can tolerate high concentrations of polystyrene nanoplastics, finding that the plant showed resilience at environmentally relevant levels but experienced measurable oxidative stress and physiological disruption at higher doses. The results suggest this floating plant has moderate tolerance but is not immune to nanoplastic toxicity.
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.
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.
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.
Soil-applied polystyrene nanoplastics (PSNPs) remain cortically confined but trigger systemic oxidative and metabolic disruption in Zea mays L. seedlings
Researchers studied how soil-applied polystyrene nanoplastics affect maize seedlings across a range of concentrations. The study found that while the nanoparticles remained confined to root surface tissues and did not penetrate deeper vascular tissue, they still triggered systemic oxidative stress and widespread metabolic disruption in shoots, suggesting that root-localized stress can cascade into whole-plant effects.
Occurrence and distribution of micro/nanoplastics in soils and their phytotoxic effects: A review
This review examined how micro- and nanoplastics distribute across different soil types and get taken up by plant roots, finding that smaller, spherical particles are absorbed more easily. Researchers found that these plastic particles accumulate in plants and trigger oxidative stress, which disrupts gene expression and metabolic pathways important for plant growth and biomass production.
Multi-omics analysis reveals immune responses in tobacco leaves treated with polyethylene nanoparticles
Researchers found that polyethylene nanoplastics rapidly triggered immune-like defense responses in tobacco plant leaves, including stomatal closure, increased reactive oxygen species, and activation of defense genes. Multi-omics analysis revealed that the plants recognized nanoplastics similarly to how they recognize pathogen threats, suggesting that nanoplastic contamination can activate innate immune pathways in plant tissues.