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Single and combined effects of polystyrene nanoplastics and Cd on submerged plants Ceratophyllum demersum L.

The Science of The Total Environment 2023 51 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 60 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Aurang Zeb, Aurang Zeb, Aurang Zeb, Qi Wang, Qi Wang, Qi Wang, Qi Wang, Aurang Zeb, Ruiying Shi, Yuhang Lian Ruiying Shi, Yuhang Lian Su Chen, Ruiying Shi, Ruiying Shi, Aurang Zeb, Yuhang Lian, Ruiying Shi, Yuhang Lian, Ruiying Shi, Ruiying Shi, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Ruiying Shi, Ruiying Shi, Ruiying Shi, Ruiying Shi, Aurang Zeb, Lingzuo Meng, Yuhang Lian Lingzuo Meng, Yuhang Lian, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Lingzuo Meng, Aurang Zeb, Aurang Zeb, Aurang Zeb, Qi Wang, Aurang Zeb, Aurang Zeb, Aurang Zeb, Aurang Zeb, Ruiying Shi, 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, Lingzuo Meng, Lingzuo Meng, Yuhang Lian Yuhang Lian Yuhang Lian Yuhang Lian Lingzuo Meng, Lingzuo Meng, Lingzuo Meng, Aurang Zeb, Aurang Zeb, Ruiying Shi, Ruiying Shi, Ruiying Shi, Ruiying Shi, Aurang Zeb, Yuhang Lian, Qi Wang, Yuhang Lian Weitao Liu, Yuhang Lian, Weitao Liu, Aurang Zeb, Aurang Zeb, Ruiying Shi, Aurang Zeb, Yuhang Lian Aurang Zeb, Qi Wang, Ruiying Shi, Weitao Liu, Weitao Liu, Aurang Zeb, Ruiying Shi, Aurang Zeb, Qi Wang, Ruiying Shi, Qi Wang, Qi Wang, Weitao Liu, Qi Wang, Qi Wang, Qi Wang, Qi Wang, Qi Wang, Qi Wang, Qi Wang, Aurang Zeb, Aurang Zeb, Aurang Zeb, Aurang Zeb, Ruiying Shi, Aurang Zeb, Yuhang Lian Yuhang Lian, Yuhang Lian, Ruiying Shi, Ruiying Shi, Yuhang Lian Aurang Zeb, Ruiying Shi, Qi Wang, Ruiying Shi, Aurang Zeb, Aurang Zeb, Aurang Zeb, Weitao Liu, Yuhang Lian, Qi Wang, Qi Wang, Ruiying Shi, Ruiying Shi, Su Chen, Yuhang Lian, Yuhang Lian Ruiying Shi, Aurang Zeb, Qi Wang, Aurang Zeb, Ruiying Shi, Ruiying Shi, Weitao Liu, Qi Wang, Yuhang Lian, Ruiying Shi, Weitao Liu, Yuhang Lian Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Yuhang Lian, Weitao Liu, Qi Wang, Qi Wang, Yuhang Lian

Summary

Researchers studied the combined effects of nanoplastics and cadmium, a toxic heavy metal, on the aquatic plant Ceratophyllum demersum. They found that nanoplastics worsened cadmium's harmful effects on plant growth, photosynthesis, and cellular health, reducing growth rates by over 35%. The study suggests that when nanoplastics and heavy metals co-occur in water, their combined impact on aquatic plants may be more severe than either pollutant alone.

Polymers

Study Type Environmental

Nanoplastics (NPs) and heavy metals are widely distributed in aquatic ecosystem, posing a potential threat to ecosystem function. Submerged macrophytes play an important role in water purification and maintaining ecological functions. However, the coupled effects of NPs and cadmium (Cd) on submerged macrophytes physiology and the mechanisms involved are still unclear. Here, the potential effects of single and co-Cd/PSNPs exposure on Ceratophyllum demersum L. (C. demersum) were explored. Our results showed that NPs aggravated the inhibition of Cd on plant growth ate (a decrease of 35.54 %), reduced chlorophyll synthesis (a decrease of 15.84 %), and disrupted the antioxidant enzyme system (a decrease of 25.07 % on SOD activity) of C. demersum. Massive PSNPs adhered to the surface of C. demersum when exposed to co-Cd/PSNPs while they did not adhere when exposed to single-NPs. The metabolic analysis further demonstrated that co-exposure down-regulated plant cuticle synthesis and that Cd exacerbated the physical damage and shadowing effects of NPs. In addition, co-exposure upregulated pentose phosphate metabolism, leading to the accumulation of starch grains. Furthermore, PSNPs reduced Cd enrichment capacity of C. demersum. Our results unraveled distinct regulatory networks for submerged macrophytes exposed to single and composite of Cd and PSNPs, providing a new theoretical basis for assessing the risks of heavy metals and NPs in the freshwater environment.

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