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20 resultsShowing papers similar to Co-exposure of di(2-ethylhexyl) phthalate (DEHP) decreased the submicron plastic stress in soil–plant system
ClearCo-exposure of di(2-ethylhexyl) phthalate (DEHP) decreased the submicron plastic stress in soil–plant system
Researchers exposed lettuce plants to submicron plastic particles combined with DEHP (a common plasticizer found in agricultural films), finding that DEHP surprisingly reduced how much plastic the plants absorbed and lowered oxidative stress markers. This unexpected result suggests that when plastics and their chemical additives are present together in soil — as they typically are — they can counteract each other's harmful effects rather than amplifying them.
Effect of polyethylene particles on dibutyl phthalate toxicity in lettuce (Lactuca sativa L.).
Polyethylene microplastic fragments in soil reduced the uptake of the plasticizer chemical dibutyl phthalate (DBP) into lettuce roots but worsened its inhibitory effects on root growth. The complex interactions between microplastics and co-occurring chemical contaminants like phthalates can alter toxicity in unexpected ways, affecting both plant growth and the safety of food crops.
Effects of polyethylene microplastic on the phytotoxicity of di-n-butyl phthalate in lettuce (Lactuca sativa L. var. ramosa Hort)
Researchers investigated how polyethylene microplastics interact with the chemical pollutant di-n-butyl phthalate in lettuce and found that microplastics altered the plant's response to the toxin. The combination reduced photosynthesis, lowered chlorophyll content, and disrupted the plant's antioxidant defenses. The study highlights that microplastics in soil can change how plants respond to other contaminants, potentially compounding environmental harm.
Combined toxicity influence of polypropylene microplastics and di-2-ethylhexyl phthalate on physiological-biochemical characteristics of cucumber (Cucumis sativus L.)
Researchers investigated the combined effects of polypropylene microplastics and the plasticizer DEHP on cucumber seedling health. They found that microplastics alone impaired photosynthesis and cell membrane stability, while DEHP individually also caused stress responses, but the mixture of both pollutants together produced more complex effects on the plants' antioxidant defenses. The study suggests that the co-presence of microplastics and plastic additives in agricultural soil may pose compounding risks to crop development.
Polystyrene particles combined with di-butyl phthalate cause significant decrease in photosynthesis and red lettuce quality
Researchers grew red lettuce hydroponically with polystyrene microplastics and dibutyl phthalate, finding that microplastics reduced the bioavailability of the plasticizer while simultaneously decreasing photosynthetic efficiency and chlorophyll content.
Effect of polystyrene on di-butyl phthalate (DBP) bioavailability and DBP-induced phytotoxicity in lettuce
Researchers investigated how polystyrene microplastics of different sizes affect the bioavailability of the plasticizer di-butyl phthalate and its toxicity to lettuce plants. They found that smaller nanoscale polystyrene particles increased DBP uptake by the plants, while larger particles reduced it by adsorbing the chemical. The study demonstrates that microplastics can act as carriers for harmful chemicals in agricultural soils, with particle size determining whether they amplify or reduce pollutant exposure to crops.
Can RhizosphereEffects Mitigate the Threat from Nanoplasticsand Plastic Additives to Tomato (Solanum lycopersicum L.)?
Researchers used a root-box system to examine how nanoplastics and the plasticizer DEHP interact in the rhizosphere of tomato plants, finding that DEHP dominated the plastic pollution risk to plants and that nanoplastic co-exposure did not mitigate DEHP toxicity to soil microorganisms but increased it for food safety.
Single low-density polyethylene microplastics stress and drought co-exposure effects on lettuce (Lactuca sativa) physiology, growth, and root development
Lettuce was grown in soil contaminated with LDPE microplastics at 0.75% and 1.5% w/w, alone or combined with drought stress (20% plant available water). Drought stress had larger negative effects on growth than MPs alone, but combined exposure produced additive or synergistic reductions in biomass and physiological function.
Effects of Soil Microplastics on Plant Growth and Soil Health
A greenhouse experiment found that polyethylene and polypropylene microplastics at increasing concentrations reduced lettuce biomass, altered soil microbial activity, and changed soil structure and water retention, with effects more pronounced at higher MP concentrations.
Can Rhizosphere Effects Mitigate the Threat from Nanoplastics and Plastic Additives to Tomato (Solanum lycopersicum L.)?
Researchers investigated whether the rhizosphere, the zone of soil around plant roots, can mitigate the combined threats of nanoplastics and the plastic additive DEHP to tomato plants. The study found that while the rhizosphere provided some protective effects against soil contamination, the coexistence of nanoplastics and DEHP actually increased risks to food safety compared to DEHP alone, indicating that plastic pollution compounds the threat from plastic additives.
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.
Revealing the bioavailability and phytotoxicity of different particle size microplastics on diethyl phthalate (DEP) in rye (Secale cereale L.)
Researchers studied how microplastics of different sizes interact with a common plasticizer chemical (DEP) in rye plants. Smaller nanoplastics were able to enter and move through the plant, disrupting leaf cells, while the plasticizer chemical increased the plant's uptake of nanoplastics. This suggests that microplastics and the chemicals they carry can work together to contaminate food crops, with smaller particles posing the greatest risk.
The short-term effect of microplastics in lettuce involves size- and dose-dependent coordinate shaping of root metabolome, exudation profile and rhizomicrobiome
Researchers exposed lettuce plants to polyethylene plastic particles of four different sizes and concentrations, finding that the plastics altered root chemistry, changed what the roots released into the soil, and shifted the bacteria living around them. The effects depended strongly on particle size, with smaller particles causing different metabolic changes than larger ones. This study shows that microplastics in farm soil can change the biology of food crops from the roots up, potentially affecting both crop health and nutritional quality.
Polystyrene micro(nano)plastics mitigate DEHP phytotoxicity and enhance its phytoremediation by pak choi.
This study found that polystyrene micro(nano)plastics reduced the phytotoxicity of the plasticizer DEHP on pak choi while simultaneously enhancing plant uptake of DEHP, altering both soil enzyme activity and microbial communities. The results suggested that MNPs can modify the environmental fate and bioavailability of co-occurring organic pollutants.
Characteristics of microplastics and their effects on phthalates and microbial activity in greenhouse soil after long-term planting
Long-term greenhouse vegetable cultivation using plastic mulch resulted in accumulation of microplastics in soil, which altered microbial activity and phthalate levels in ways that changed with the number of planting years.
Physiological responses of lettuce (Lactuca sativa L.) to microplastic pollution
PVC microplastics of two different size ranges had contrasting effects on lettuce roots, with smaller particles stimulating root growth and larger particles having no effect, and smaller particles also reduced photosynthetic efficiency at moderate concentrations. The study suggests that microplastic size is a key variable determining whether effects on crops are stimulatory or inhibitory.
Mechanistic insights into the effects of micro- and nano-plastics on cherry radish physiology and organic compound distribution at the soil-root interface.
Researchers exposed cherry radish to polyethylene microplastics (2 µm) and nanoplastics (200 nm) at varying concentrations and measured effects on plant physiology and organic compound distribution at the soil-root interface. Smaller nanoplastic particles caused greater disruption to root exudate chemistry and plant metabolism than the larger microplastics, pointing to a size-dependent toxicity mechanism.
Polyethylene microplastics enhanced the toxicity of diisobutyl phthalate in saline soil microorganisms
Researchers examined whether polyethylene microplastics alter the toxicity of the plasticizer diisobutyl phthalate (DiBP) on saline soil microorganisms by testing combinations of both pollutants at two concentrations. PE microplastics enhanced DiBP toxicity to soil microbial communities, suggesting that co-contamination of saline agricultural soils poses greater risks than either pollutant alone.
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.
Toxicity orchestrated by alkyl chain length of plasticizers and exposure time: Transfer mechanisms of microplastic-plasticizer co-contamination across the full life cycle of rye
Researchers studied how polystyrene microplastics combined with phthalate plasticizers of different chain lengths affect rye plants through both short-term and long-term experiments. Short-chain phthalates caused the strongest toxicity in hydroponic conditions, while long-chain DEHP combined with microplastics produced the greatest long-term damage, reducing grain weight by 38% and causing microplastic accumulation in seeds.