Synergistic Effects of Polystyrene Nanoplastics and Cadmium on the Metabolic Processes and Their Accumulation in Hydroponically Grown Lettuce (<i>Lactuca sativa</i>).

ABSTRACT: Plastic contamination in agricultural systems is an emerging concern. While current research suggests low direct toxicity, the consequences from interactions between nanoplastics and copresent contaminants are poorly understood. In this study, the synergistic effects of cadmium (Cd) and polystyrene nanoplastics (PS NP) on the growth and physiological responses of hydroponically grown Lactuca sativa (lettuce) were examined. Coexposure significantly increased the accumulation of Cd and PS NP by 61 and 67% in lettuce shoots compared with single-contaminant exposure. Metabolomic analysis showed that joint exposure induced an increase in glutathione and flavonoid-like compounds, suggesting an energy-intensive oxidative stress response. In addition, coexposure appeared to promote adventit

SUBMITTER: Bryant MT 

PROVIDER: S-EPMC12232387 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature