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61,005 resultsShowing papers similar to Differential Responses of Spinach Cultivars to Micro-Nanoplastic Stress Under Hydroponic and Soil Cultivation Conditions
ClearMicroplastics contamination on spinach (Spinacia oleracea): influence of plastic polymers, growing media, and copper co-exposure
A pot experiment tested how different microplastic polymers (LDPE, PBAT, starch-based) and copper co-contamination affected spinach grown in two soil types, finding that microplastic effects on plant growth and copper uptake varied significantly by polymer type and soil characteristics.
Effects of microplastics on seed germination and seedling physiological characteristics of Spinacia oleracea under alkali stress.
Polystyrene nanoplastics at moderate to high concentrations (400 mg/L and above) inhibited spinach seed germination and suppressed antioxidant enzyme activity and chlorophyll levels, even under normal growing conditions. When combined with alkaline salt stress — simulating saline soils common in some agricultural regions — both stressors generally compounded harm to plant development. These findings raise concerns about microplastic contamination in irrigated croplands, where plants may already face chemical stress, potentially threatening food crop yields.
[Effects of Low-density Polyethylene Microplastics on the Growth and Physiology Characteristics of Ipomoea aquatica Forsk].
Researchers grew water spinach in soil spiked with low-density polyethylene microplastics at varying concentrations and found that even moderate doses reduced germination rates, stunted growth, and disrupted photosynthesis. The study suggests that microplastic contamination in agricultural soil could threaten food crop yields and quality.
PolystyreneNanoplastics Compromise the NutritionalValue of Radish (Raphanus sativus L.)
Researchers grew radishes in soil contaminated with polystyrene nanoplastics and found that NP exposure reduced vegetable nutritional quality by lowering vitamin C, anthocyanin, and antioxidant content while increasing oxidative stress markers in the edible portions.
Comparison of Growth and Quality between Hydroponically Grown and Soil-Grown Lettuce under the Stress of Microplastics
Researchers compared the effects of polyethylene microplastics on lettuce grown hydroponically versus in soil, finding that both systems showed reduced ascorbic acid levels and growth impacts, though the specific responses differed between growing conditions.
Potential impact of polyethylene microplastics on the growth of water spinach (Ipomoea aquatica F.): Endophyte and rhizosphere effects
Researchers studied how polyethylene microplastics affect the growth of water spinach, a widely consumed vegetable. The microplastics altered both the root-zone soil bacteria and the beneficial microbes living inside the plant, with effects varying by particle size. The study suggests that microplastic contamination in agricultural soil could indirectly affect crop health by disrupting the microbial communities plants depend on.
Effects of different particle size microplastics and di-n-butyl phthalate on photosynthesis and quality of spinach
Researchers investigated how microplastics of different sizes combined with the plasticizer di-n-butyl phthalate affect spinach growth and photosynthesis in hydroponic experiments. They found that the combined pollution significantly reduced key photosynthetic parameters, with effects varying by microplastic particle size and concentration. The study highlights the potential for microplastic-associated chemical contaminants to impair crop productivity in agricultural settings.
Nano- and microplastics commonly cause adverse impacts on plants at environmentally relevant levels: A systematic review
Systematic review of 78 studies found that nano- and microplastics commonly cause adverse effects on plants even at environmentally relevant concentrations, with germination and root growth more strongly affected than shoot growth during early development. Chlorophyll levels were consistently reduced while stress indicators (ROS) and antioxidant enzymes were consistently upregulated across species.
Nanoplastics indirectly compromise lettuce growth in hydroponic systems via microbial extracellular vesicles derived from Curvibacter fontanus
Researchers found that nanoplastics in hydroponic irrigation water did not directly harm lettuce but caused significant shifts in microbial communities, particularly increasing the abundance of the bacterium Curvibacter fontanus. Extracellular vesicles produced by this bacterium under nanoplastic exposure suppressed lettuce growth, antioxidant defenses, and survival. The study reveals an indirect pathway by which nanoplastic contamination can harm crop production through microbial disruption.
Uptake, Distribution, and Impact of Micro- and Nano-Plastics in Horticultural Systems Using Lettuce (Lactuca sativa) as a Model Crop
Researchers studied how micro- and nanoplastics are taken up and distributed in lettuce grown in horticultural systems, finding that nanopolystyrene exposures significantly inhibited leaf and root development in a concentration-dependent manner. They optimized extraction methods for quantifying microplastics in soil and developed a synthesis procedure for nanoplastic test particles. The study demonstrates that plastic fragments from horticultural materials can accumulate in soil and affect crop growth, raising concerns about food safety.
Toxic effects and mechanisms of engineered nanoparticles and nanoplastics on lettuce (Lactuca sativa L.)
Researchers compared the effects of engineered nanoparticles and polystyrene nanoplastics on lettuce and found that all types caused oxidative stress in roots at high concentrations. Each nanoparticle type triggered different defensive metabolic pathways in the plants, and nanoplastics specifically altered amino acid and vitamin metabolism. Since lettuce is widely consumed raw, these findings raise questions about how nanoplastic contamination in agricultural soil could affect the safety of leafy vegetables.
Toxicity of polyvinyl chloride microplastics on Brassica rapa
Researchers exposed Brassica rapa plants to UV-weathered PVC microplastics and found significant growth inhibition, with stem length reduced by nearly 46% and root length by 35% after 30 days. The microplastic particles blocked leaf stomata and were observed entering the plant tissue, triggering stress responses including increased enzyme activity. The study suggests that microplastics in soil can physically and chemically interfere with normal plant development.
Foliar implications of polystyrene nanoplastics on leafy vegetables and its ecological consequences
Scientists applied polystyrene nanoplastics to four common leafy vegetables and found that the tiny particles accumulated on leaf surfaces, particularly around the pores plants use to breathe. This accumulation reduced the plants' chlorophyll content and ability to photosynthesize, affecting their growth and nutritional quality. The findings raise concerns that airborne nanoplastic pollution could compromise the safety and nutritional value of the vegetables people eat.
Species-dependent response of food crops to polystyrene nanoplastics and microplastics
Researchers exposed seeds of four common food crops to polystyrene nanoplastics and microplastics and found that the effects varied significantly depending on the plant species. Italian lettuce was the most sensitive, with germination rates dropping by up to 36%, while radish and wheat were largely unaffected. The study also found evidence that nanoplastics can be absorbed by plant roots within the first week of growth, raising questions about food safety implications.
Brassica sprouts exposed to microplastics: Effects on phytochemical constituents
Brassica sprouts grown in soil containing microplastics at varying concentrations showed changes in secondary metabolite profiles and reduced accumulation of key bioactive compounds including glucosinolates and antioxidants. The results suggest that microplastic contamination of agricultural soils can alter the nutritional and phytochemical quality of edible crops.
Assessing the impact of micro and nanoplastics on the productivity of vegetable crops in terrestrial horticulture: a comprehensive review
This review summarizes research on how micro and nanoplastics accumulate in farmland and get absorbed by vegetable crops through their roots, building up in the edible parts of the plants. The plastic particles cause toxic effects that stunt plant growth by disrupting cellular processes and gene activity. This means the vegetables people eat may contain microplastics picked up from contaminated soil.
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.
Recent advances on microplastics/nanoplastics interaction with plant species: A concise review
This review synthesizes research on how microplastics and nanoplastics interact with plants, finding that plastic particles in soil can interfere with root uptake, germination, and crop yields depending on the type and concentration of plastic present. The findings are particularly relevant to human health because food crops grown in microplastic-contaminated agricultural soils may absorb or accumulate plastic particles, creating a direct dietary exposure route.
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.
The response of Chinese Cabbage (Brassica rapa L.) to the co-contamination of nanoplastics with different polarity and Ketoprofen
Researchers grew Chinese cabbage in soil contaminated with polyethylene and polypropylene nanoparticles alone and in combination with the pharmaceutical ketoprofen. Both nanoparticle types reduced plant biomass and caused oxidative stress, with polypropylene being more toxic because it translocated from roots to aerial parts, and the combination with ketoprofen intensified all harmful effects.
Microplastic pollution in agriculture: How exposure pathway (Seed, Leaf, Root) dictates phytotoxicity in lettuce (Lactuca sativa L.)
This study compared the phytotoxicity of polyethylene microplastics applied to lettuce via seed, leaf, and root exposure pathways, finding that root exposure caused the greatest growth inhibition and oxidative stress. The route of MP exposure significantly influenced the type and severity of toxic effects on crops.
Impacts of Micro/Nanoplastics Combined with Graphene Oxide on Lactuca sativa Seeds: Insights into Seedling Growth, Oxidative Stress, and Antioxidant Gene Expression
Researchers examined how polystyrene micro- and nanoplastics combined with graphene oxide affect lettuce seed germination and seedling growth. The combinations produced both harmful and protective effects depending on the specific measure being assessed, with oxidative stress being the primary mechanism of damage in roots and shoots. The study highlights the complexity of predicting how multiple nanomaterial pollutants interact in agricultural soils.
Metal Release from Microplastics to Soil: Effects on Soil Enzymatic Activities and Spinach Production
This study assessed how metals released from biodegradable and polyethylene microplastics affect soil enzyme activity and spinach growth, finding that metal release from both plastic types reduced soil enzymatic function and spinach yield at higher concentrations.
Investigating the Impacts of Microplastics on the Plants Growth in Agriculture Soil
Researchers investigated the effects of polyvinyl acetate (PVA) microplastics at concentrations of 0%, 0.5%, 1%, 1.5%, and 2% on the germination, growth parameters, and nutrient content of horse gram, green gram, and chili grown in agricultural soil. Higher PVA concentrations reduced germination percentage, seedling length, and vigor index, and caused significant reductions in boron and sulphur concentrations alongside decreased soil pH and chlorophyll a levels.