Toxicological Effects and Molecular Metabolic of Polystyrene Nanoplastics on Soybean ( Glycine Max L. ): Strengthening Defense Ability by Enhancing Secondary Metabolisms

Toxicological effects and molecular metabolic of polystyrene nanoplastics on soybean (Glycine max L.): Strengthening defense ability by enhancing secondary metabolisms

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Researchers exposed soybean seedlings to polystyrene nanoplastics and found that the tiny particles were absorbed by the roots and transported throughout the plant. The nanoplastics caused oxidative stress and slowed growth, though the plants activated defense mechanisms through secondary metabolism. This is concerning because crops that absorb nanoplastics could transfer them to humans through the food supply.

Physiological and Biochemical Effects of Polystyrene Micro/Nano Plastics on Arabidopsis Thaliana

Toxicity effects of nanoplastics on soybean (Glycine max L.): Mechanisms and transcriptomic analysis

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Researchers exposed soybean plants to polystyrene nanoplastics and observed inhibited stem and root growth, increased oxidative stress, and disrupted photosynthesis. Transcriptomic analysis revealed that nanoplastics altered the expression of genes involved in plant stress responses, hormone signaling, and metabolic pathways. The study suggests that nanoplastic contamination in agricultural soils could negatively affect crop growth and yield at the molecular level.

Response of soybean (Glycine max L.) seedlings to polystyrene nanoplastics: Physiological, biochemical, and molecular perspectives

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Researchers examined the effects of polystyrene nanoplastics on soybean seedlings in a hydroponic experiment and confirmed that the nanoparticles were taken up by plant roots. The study found that nanoplastic exposure negatively affected growth, increased mineral content in roots and leaves, caused oxidative stress, and altered gene expression related to stress response and hormone signaling pathways.

From soil to shoot plant responses to polystyrene nanoplastics and relevance for sustainable food systems

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Tiny plastic particles from broken-down polystyrene (a common plastic) can be absorbed by plant roots and leaves, sometimes building up in the parts we actually eat, like grains and leafy greens. This review of existing research found that some crops (rice, lettuce, garlic) are harmed by these plastics, showing stress and stunted growth, while others (wheat) seem more resistant, meaning the risk to our food supply likely depends on what we're growing. The bottom line: we need better testing methods to understand how much of this plastic is ending up on our plates and what that means for our health.