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Single and combined toxicity of polystyrene nanoplastics and arsenic on submerged plant Myriophyllum verticillatum L.

Plant Physiology and Biochemistry 2022 46 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 55 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Aurang Zeb, Ruiying Shi, Ruiying Shi, Ruiying Shi, Ruiying Shi, Ruiying Shi, Ruiying Shi, Aurang Zeb, Aurang Zeb, Qi Wang Qi Wang Qi Wang Qi Wang Aurang Zeb, Aurang Zeb, Yuhang Lian, Yuhang Lian, Jiantao Li, Cordelia Sealy, Cordelia Sealy, Yuhang Lian, Yuhang Lian, Weitao Liu, Yuhang Lian, Weitao Liu, Jiantao Li, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Yuhang Lian, Weitao Liu, Ruiying Shi, Weitao Liu, Weitao Liu, Weitao Liu, Ruiying Shi, Ruiying Shi, Ruiying Shi, Aurang Zeb, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Yuhang Lian, Aurang Zeb, Ruiying Shi, Aurang Zeb, Aurang Zeb, Aurang Zeb, Aurang Zeb, Qi Wang Aurang Zeb, Aurang Zeb, Ruiying Shi, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Yuhang Lian, Yuhang Lian, Yuhang Lian, Yuhang Lian, Yuhang Lian, Yuhang Lian, Yuhang Lian, Yuhang Lian, Yuhang Lian, Qi Wang Ruiying Shi, Yuhang Lian, Weitao Liu, Ruiying Shi, Aurang Zeb, Aurang Zeb, Aurang Zeb, Aurang Zeb, Ruiying Shi, Ruiying Shi, Yuhang Lian, Weitao Liu, Aurang Zeb, Aurang Zeb, Aurang Zeb, Weitao Liu, Qi Wang Aurang Zeb, Aurang Zeb, Weitao Liu, Aurang Zeb, Weitao Liu, Qi Wang Qi Wang Qi Wang Ruiying Shi, Aurang Zeb, Qi Wang Qi Wang Aurang Zeb, Qi Wang Qi Wang Qi Wang Yuhang Lian, Qi Wang Qi Wang Aurang Zeb, Aurang Zeb, Yuhang Lian, Yuhang Lian, Ruiying Shi, Ruiying Shi, Aurang Zeb, Qi Wang Cordelia Sealy, Qi Wang Yuhang Lian, Aurang Zeb, Weitao Liu, Aurang Zeb, Cordelia Sealy, Jiantao Li, Ruiying Shi, Jiantao Li, Qi Wang Yuhang Lian, Ruiying Shi, Aurang Zeb, Ruiying Shi, Cordelia Sealy, Jiantao Li, Aurang Zeb, Qi Wang Yuhang Lian, Weitao Liu, Aurang Zeb, Jiantao Li, Ruiying Shi, Cordelia Sealy, Yuhang Lian, Ruiying Shi, Ruiying Shi, Qi Wang Weitao Liu, Weitao Liu, Yuhang Lian, Weitao Liu, Weitao Liu, Yuhang Lian, Cordelia Sealy, Cordelia Sealy, Jiantao Li, Jiantao Li, Jiantao Li, Ruiying Shi, Jiantao Li, Weitao Liu, Cordelia Sealy, Weitao Liu, Jiantao Li, Cordelia Sealy, Qi Wang Yuhang Lian, Weitao Liu, Weitao Liu, Yuhang Lian, Qi Wang

Summary

Researchers investigated the combined toxicity of polystyrene nanoplastics and arsenic on the submerged aquatic plant Myriophyllum verticillatum. They found that nanoplastics reduced arsenic accumulation in the plant by 17 to 67 percent, and that the interaction between the two contaminants was dose-dependent, with nanoplastics alleviating arsenic toxicity at low doses but worsening it at higher concentrations. The study suggests that co-contamination of nanoplastics and heavy metals in freshwater environments may have complex ecological effects.

Polymers

Study Type Environmental

The contamination of nanoplastics (NPs) and heavy metals (HM) in water bodies has caused widespread concern, while their effects on submerged plants are poorly reported. Polystyrene nanoplastics (PSNPs) and arsenic (As) were used to assess their toxicity on Myriophyllum verticillatum L. via the orthogonal experiments. PSNPs significantly reduced the accumulation of As (17.24%-66.67%) in plant. Single As and high As-PSNPs treatments significantly inhibited plant growth, with a maximum reduction of 70.09% in the growth rate. The mineral nutrient content was significantly affected by PSNPs and As treatments. The antioxidant system was significantly inhibited, which was more pronounced in the roots. Similar findings were observed for soluble protein and soluble sugar. Some organic acids and amino acids showed down-regulation at high concentrations of As, leading to a decrease in the content of the mineral element and down-regulation of antioxidant enzyme synthesis. Furthermore, PSNPs could alleviate As toxicity under 0.1 mg/L As treatment but exacerbate As toxicity at 1 mg/L As dose. This study has important implications for the study of submerged plants exposed to co-contamination of microplastics and heavy metals, as well as the possible ecological risk assessment in freshwater.

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