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61,005 resultsShowing papers similar to Aquaporin inhibitors modulate the toxic effects of polystyrene nanoplastics on Chrysanthemum coronarium L.
ClearTransmembrane uptake of polystyrene nanoplastics mediated by aquaporin in tartary buckwheat: Physiological consequence and genomic mechanism
Researchers exposed tartary buckwheat seedlings to polystyrene nanoplastics and discovered that the particles can cross plant cell membranes through aquaporin water channel proteins. The study identified a specific aquaporin gene (FtPIP2;8) as a core mediator of nanoplastic transport into root cells, where the particles triggered significant oxidative stress and impaired plant physiological functions.
Response of rice (Oryza sativa L.) roots to nanoplastic treatment at seedling stage
Researchers exposed rice seedlings to polystyrene nanoplastics and found that the particles were taken up by the roots, aided by water-transporting proteins in the plant. The nanoplastics triggered oxidative stress, reduced root length, and disrupted carbon metabolism and hormone production in the seedlings. The study raises concerns that nanoplastic contamination in agricultural soils could affect crop growth and potentially enter the human food supply through rice consumption.
Translocation of polystyrene nanoplastics in distinct plant species: Novel insight from a split-root system and transcriptomic analysis
Researchers used a split-root system to study how polystyrene nanoplastics move through cucumber and maize plants, finding that the particles travel from roots to shoots via xylem and redistribute back to roots via phloem. Cucumber roots accumulated more nanoplastics than maize, while maize showed greater redistribution from shoots back to roots. The study revealed that aquaporin proteins play a key role in regulating nanoplastic uptake and transport in plants.
Transport Dynamicsand Physiological Responses ofPolystyrene Nanoplastics in Pakchoi: Implications for Food Safetyand Environmental Health
Researchers tracked the transport and physiological responses of polystyrene nanoplastics in pakchoi (bok choy) plants, finding that nanoplastics were absorbed through roots and translocated to shoots where they disrupted chlorophyll production and reduced plant growth.
Polymer nanoparticles pass the plant interface
Researchers created well-defined fluorescent polymer nanoparticles and tracked their uptake into the roots and cells of Arabidopsis plants using microscopy. They found that smaller nanoparticles were taken up more efficiently than larger ones, with particles entering through the root system. The study provides direct evidence that nanoplastics can cross plant cell barriers, which has implications for understanding how plastic pollution may enter the food chain through crops.
Polystyrene nanoplastics' accumulation in roots induces adverse physiological and molecular effects in water spinach Ipomoea aquatica Forsk
Researchers exposed water spinach to polystyrene nanoplastics in a hydroponic experiment and tracked where the particles accumulated in the plant. They found that nanoplastics built up primarily in the roots, causing reduced growth, impaired photosynthesis, and disrupted antioxidant defense systems. The study raises concerns about nanoplastic uptake by edible aquatic vegetables and the potential implications for food safety.
Insight into the absorption and migration of polystyrene nanoplastics in Eichhornia crassipes and related photosynthetic responses
Researchers studied how water hyacinth plants absorb and transport polystyrene nanoplastics of different sizes. Smaller nanoplastics (20 nm) penetrated deeper into root tissue and migrated to leaves, while larger ones (200 nm) mostly stayed in the roots. Both sizes impaired photosynthesis, suggesting that nanoplastic pollution in waterways can harm aquatic plants that play important roles in water purification.
Transport Dynamics and Physiological Responses of Polystyrene Nanoplastics in Pakchoi: Implications for Food Safety and Environmental Health
Researchers tracked fluorescently labeled nanoplastics as they traveled through pakchoi (a leafy green vegetable), entering through the roots, moving up through the plant's water-transport system, and accumulating in the leaves. The nanoplastics caused oxidative damage and disrupted plant hormones, demonstrating a clear pathway by which plastic pollution in soil could enter the human food supply through everyday vegetables.
Polystyrene microplastic interaction with Oryza sativa: toxicity and metabolic mechanism
Researchers confirmed for the first time that polystyrene nanoplastics can enter rice plant root cells through a process called endocytosis. This finding provides important new understanding of how microplastic contamination in soil may affect crop plants and potentially enter the food supply.
Mechanism of transport and toxicity response of Chlorella sorokiniana to polystyrene nanoplastics
Researchers studied how polystyrene nanoplastics are transported into freshwater algae cells and what toxic effects they cause. They found that the tiny plastic particles entered the cells through specific pathways and triggered oxidative stress, inhibiting algae growth. The study provides new insights into how nanoplastics disrupt the base of aquatic food chains by damaging microscopic organisms.
Nanoparticles in Plants: Uptake, Transport and Physiological Activity in Leaf and Root
This review examines how nanoparticles are absorbed and transported through plant roots and leaves, and how they affect plant growth and health. Understanding nanoparticle uptake by crops is important because similar mechanisms may apply to nanoplastics, meaning tiny plastic particles in soil could potentially enter the food supply through plants.
Charge-selective polystyrene nanoplastic retention by plant cell walls: Pectin domains dictate differential accumulation in rice seedling roots and shoots
A study of rice seedling roots found that plant cell walls act as a charge-selective barrier to nanoplastics: negatively charged polystyrene nanoplastics (PS-COOH) accumulated nearly 4.5 times more in shoots than positively charged ones (PS-NH₂), while positive nanoplastics were preferentially retained in root cell walls by binding to pectin. The results are directly relevant to food safety because they show that nanoplastic surface chemistry determines how much plastic penetrates into the edible parts of a major global food crop.
Cellular Process of Polystyrene Nanoparticles Entry into Wheat Roots
Researchers investigated how polystyrene nanoparticles enter wheat root cells, finding that smaller particles (100 nm) were internalized more readily than larger ones, with surface charge influencing uptake pathways through both endocytosis and direct penetration of cell walls.
Polystyrene nano- and microplastic accumulation at Arabidopsis and wheat root cap cells, but no evidence for uptake into roots
Researchers investigated whether polystyrene nano- and microplastics can be taken up by the roots of Arabidopsis and wheat plants. They found that plastic particles accumulated at root cap cells on the outer surface of roots but found no evidence that the particles were actually taken up into root tissues. The study suggests that while plastic particles associate with plant roots, they may not easily enter the plant itself through this pathway.
Translocation mechanism and the role of aerenchyma in nanoplastic translocation in Myriophyllum sp. “Roraima” and physiological responses
Researchers traced how 50-nm nanoplastics enter, move through, and affect the aquatic plant Myriophyllum sp., finding that aerenchyma (air-conducting tissue) channels facilitate nanoplastic transport within the stem and that exposure alters photosynthetic efficiency and triggers antioxidant responses even without visible physical damage.
How do nanoplastics hijack crop physiology: A review of uptake pathways and agricultural sustainability implications
This research review summarizes how tiny plastic particles called nanoplastics can get inside crop plants through their roots and leaves, potentially harming how plants grow and produce food. These ultra-small plastic pieces interfere with how plants absorb nutrients and respond to stress, which could threaten our food supply. Since we eat these crops, understanding how nanoplastics affect plant health is important for protecting both agriculture and human health.
Uptake of polystyrene nanospheres by wheat and Arabidopsis roots in agar, hydroponics, and soil
Researchers studied the uptake of polystyrene nanoplastic particles by wheat and Arabidopsis roots across three growing systems: agar, hydroponics, and soil. The study found that plant roots can absorb nanoplastic particles, raising concerns about food chain contamination. The findings suggest that nanoplastics in agricultural soils may enter food crops and ultimately reach human consumers.
The threat of micro/nanoplastic to aquatic plants: current knowledge, gaps, and future perspectives
This review summarizes what is known about how micro- and nanoplastics affect aquatic plants, including how plants absorb these particles through roots and leaves and transport them internally. Exposure can alter plant growth, photosynthesis, and interactions with other organisms, though effects vary widely depending on plastic type and concentration. The authors highlight major research gaps and call for more studies on real-world conditions rather than controlled lab settings.
Impact of polystyrene nanoplastics on physiology, nutrient uptake, and root system architecture of aeroponically grown citrus plants
Researchers studied how polystyrene nanoplastics of two sizes (20 nm and 50 nm) affect citrus rootstock plants grown in an aeroponic system. The 20 nm nanoplastics significantly reduced root system architecture and nutrient uptake, though overall plant growth and photosynthesis were not immediately affected. Microscopic analysis showed that while nanoplastics adhered to root surfaces, they did not appear to enter the roots, though they did cause visible damage to outer root cell layers.
Uptake and transport of micro/nanoplastics in terrestrial plants: Detection, mechanisms, and influencing factors
This review summarizes how micro and nanoplastics enter and move through plants, including uptake through roots and leaves via processes like endocytosis and movement through cell walls. Smaller particles penetrate more easily, and factors like surface charge and soil conditions affect how much plastic plants absorb. The findings are important because they show that crops can take up microplastics from contaminated soil, creating a potential pathway for these particles to reach the human diet.
Negative impacts of nanoplastics on the purification function of submerged plants in constructed wetlands: Responses of oxidative stress and metabolic processes
Researchers exposed a submerged aquatic plant commonly used in constructed wetlands to polystyrene nanoplastics and measured the impacts on growth, photosynthesis, and metabolism. They found that nanoplastics were absorbed and transported throughout the plant, reducing growth by up to 73 percent and disrupting key metabolic pathways including the citric acid cycle. The study suggests that nanoplastic accumulation in wetland plants could compromise their ability to purify water.
[Progress on the Migration Mechanism and Toxic Effects of Nanoplastics in Terrestrial Plants].
This Chinese-language review paper synthesizes current knowledge on how nanoplastics — the smallest plastic particles — are absorbed and transported within land plants. Nanoplastics can enter plants through root surfaces, cell junctions, and leaf stomata, and once inside they impair growth, suppress photosynthesis, cause oxidative damage, and alter gene expression and metabolism. Because plants are a primary pathway through which nanoplastics could enter the human food chain, understanding their uptake mechanisms is directly relevant to food safety.
Micro and nanoplastics pollution: Sources, distribution, uptake in plants, toxicological effects, and innovative remediation strategies for environmental sustainability
This review examines how microplastics and nanoplastics enter plants through roots, disrupt growth and photosynthesis, and cause oxidative stress that reduces crop yields. Because these plastic particles can move through plant tissues and into edible parts, they represent a potential pathway for microplastics to enter the human food supply.
Transport of Nanoparticles into Plants and Their Detection Methods
This review examines how nanoparticles enter plants through roots, leaves, and stems, and the methods scientists use to track them inside plant tissues. While focused broadly on nanoparticles used in agriculture and biotechnology, the findings are directly relevant to understanding how nanoplastics in soil and water can be taken up by food crops. The research highlights that particle size, charge, and coating all affect how readily nanoparticles penetrate plant barriers and accumulate in edible parts.