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Chinese Journal of Applied Ecology ›› 2024, Vol. 35 ›› Issue (10): 2916-2924.doi: 10.13287/j.1001-9332.202410.028

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Research progress on the effect of estuary microplastics on antibiotic resistance genes

WANG Qing1, QIU Jinghao1, SUN Yan1*, NI Ni2,3, SUN Shaojing1, LI Xuli1, YANG Shengjuan1, LIU Yiran1, CUI Yingying1   

  1. 1College of Energy and Environmental Engineering, Hebei University of Engineering/Hebei Key Laboratory of Air Pollution Cause and Impact/Hebei Engineering Research Center of Sewage Treatment and Resource Utilization, Handan 056038, Hebei, China;
    2Nanjing Institute of Environmental Science, Ministry of Ecology and Environment, Nanjing 210042, China;
    3State Key Laboratory of Environmental Assessment and Pollution Control of Pesticides for Environmental Protection, Nanjing 210042, China
  • Received:2024-02-08 Accepted:2024-06-13 Online:2024-10-18 Published:2025-04-18

Abstract: Estuaries are transitional zones between rivers and marine environments, with intensive human activities. Pollutants pose a threat to the ecological systems of estuaries. Among these pollutants, microplastics and antibiotic resistant genes have gained significant attention due to their potential impacts on estuarine organisms and human health. Microplastics can form unique biofilms, adsorb pollutants from the surrounding environment, and provide potential hosts for antibiotic resistant genes, with positive consequence on horizontal gene transfer of antibiotic resistance. We provided an overview of the pollution status of microplastics and antibiotic resistant genes in estua-rine areas, with a particular emphasis on the influence of biofilms formed on microplastics on the enrichment, transport, and transfer of antibiotic resistant genes. We also highlighted the limitations in current research, regarding microplastic sampling, analysis methods, and inconsistent reporting units. Furthermore, we proposed prospects for the biodegradation of microplastics and potential risk assessment of microplastic biofilms.

Key words: microplastics, antibiotic resistance genes, biofilm, antimicrobial resistance