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Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Nanoplastics Sign in to save

Effects of copper ions and their combination with nanoplastics on the aerobic denitrifying bacterium Pseudomonas stutzeri: denitrification performance, physiological and biochemical responses, and transcriptomic changes

Environmental Science Nano 2025 Score: 38 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Zeyu Chen, Jianwei Qu, Weile Meng, Meiru Tang, Xiaowei Xu, Xiaowei Xu, Yue Zhi, You‐Peng Chen, Peng Yan, Fang Fang, Jinsong Guo

Summary

Researchers found that polystyrene nanoplastics mitigate copper ion toxicity in the aerobic denitrifying bacterium Pseudomonas stutzeri by enhancing extracellular polymeric substance secretion and upregulating nitrogen metabolism genes, with transcriptomic analysis revealing the mechanistic basis for improved denitrification performance under combined copper-nanoplastic stress.

Polymers
PS

Polystyrene nanoplastics mitigate Cu-induced stress in Pseudomonas stutzeri by enhancing EPS secretion and nitrogen metabolism gene expression, improving denitrification efficiency. Mechanistic insights are revealed via transcriptomic analysis.

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