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Nanoplastic–plant interaction and implications for soil health
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This review summarizes research on how nanoplastics interact with plants in soil environments, finding that these tiny particles can be taken up by roots and transported to all plant organs, including edible parts like grain. Researchers found that nanoplastics induce oxidative stress in plants, inhibiting photosynthesis and growth, and can also carry other soil pollutants into plant tissues. The study highlights significant concerns about nanoplastic contamination entering the food chain through agricultural crops.
Abstract Nanoplastics (NPs) are accumulating in the soil environment at a rapid rate, which may cause serious consequences for ecosystems and human health. However, environmental behaviour and toxicity of NPs in the soil–plant system remain poorly understood. This review summarizes current studies on NP–plant interactions to unravel uptake mechanisms and phytotoxicity of NPs. NPs could be taken up by plant roots and transported upwards through the xylem to all organs of the plant, even to the edible parts such as the grain, thereby threatening human health. The interaction of NPs with plants affects plant transport of water and nutrients. Besides, it induces significant oxidative stress leading to inhibition of physiological and biochemical activities such as photosynthesis, and thus adversely affects plant growth and development. In addition, the co‐transport of NPs with other soil pollutants may induce the combined toxic effects. This study also discussed the potential mechanism of NP–plant interactions based on previous experience with engineered nanomaterials. Finally, a comprehensive assessment of the key challenges in each area was presented, and future perspectives are offered.
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This review examines how microplastics and nanoplastics accumulate in agricultural soils from plastic products and affect the soil-plant system. Researchers found that nanoplastics can be taken up by plant roots, cause oxidative stress, and negatively affect crop growth. The findings raise concerns about food safety since these particles may carry co-contaminants into the food chain.
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