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Uptake and Accumulation of Nano/Microplastics in Plants: A Critical Review
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This review summarizes the latest research on how microplastics and nanoplastics are taken up by food crops through roots and leaves. Nanoplastics can penetrate plant cell walls more easily than larger microplastics, and the water-pulling force of transpiration is the main driver moving particles up through the plant. These findings are important for food safety because they confirm that plastic particles in contaminated soil can end up inside the fruits and vegetables people eat.
The ubiquitous presence of microplastics (MPs) and nanoplastics (NPs) in the environment is an undeniable and serious concern due to their higher persistence and extensive use in agricultural production. This review highlights the sources and fate of MPs and NPs in soil and their uptake, translocation, and physiological effects in the plant system. We provide the current snapshot of the latest reported studies with the majority of literature spanning the last five years. We draw attention to the potential risk of MPs and NPs in modern agriculture and their effects on plant growth and development. We also highlight their uptake and transport pathways in roots and leaves via different exposure methods in plants. Conclusively, agricultural practices, climate changes (wet weather and heavy rainfall), and soil organisms play a major role in transporting MPs and NPs in soil. NPs are more prone to enter plant cell walls as compared to MPs. Furthermore, transpiration pull is the dominant factor in the plant uptake and translocation of plastic particles. MPs have negligible negative effects on plant physiological and biochemical indicators. Overall, there is a dire need to establish long-term studies for a better understanding of their fate and associated risks mechanisms in realistic environment scenarios for safe agricultural functions.
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Uptake and transport of micro/nanoplastics in terrestrial plants: Detection, mechanisms, and influencing factors
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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.
Microplastic Uptake in Vegetables: Sources, Mechanisms, Transport and Food Safety
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This review summarizes current knowledge on how microplastics enter vegetables through soil, water, and air, and how they are transported within plant tissues. Researchers found that microplastics can be taken up through roots and move to edible parts, with uptake varying by plant species, particle size, and soil conditions. The findings highlight that vegetable consumption may be an important but underrecognized pathway for human microplastic exposure.
Micro/Nanoplastics in Agriculture: Uptake, Translocation and Bioaccumulation in Plants and Their Ecological Implications
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Tiny plastic particles from pollution are building up in farm soils and getting absorbed by plants through their roots, then traveling up into the leaves, fruits, and other parts we eat. This review of existing research shows these plastics can interfere with how plants grow and take up nutrients, and their presence in edible crops raises real concerns about how much plastic might be ending up on our dinner plates. Scientists still need better, standardized tools to detect these particles and develop ways to keep them out of our food supply.
Microplastics in soil—uptake, fate, transport, and effect on the growth of plants
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This review examines the mechanisms by which microplastics enter soil through agricultural practices, climate events, and soil organism activity, and summarizes current evidence on plant uptake -- driven primarily by transpiration pull -- and translocation of plastic particles through plant tissues. The authors identify significant knowledge gaps regarding long-term soil microplastic behavior and ecological effects on plant growth and nutritional quality.
The review of nanoplastics in plants: Detection, analysis, uptake, migration and risk
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This review examines how nanoplastics are detected, analyzed, taken up by plants, and migrate through plant tissues from roots to edible parts. As nanoplastics are found in agricultural soils, understanding how they enter food crops is critical for assessing human dietary exposure.
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