当前位置 :首页>研究报道

微塑料是抗生素耐药基因的热点:进展与展望

发布者:抗性基因网 时间:2021-05-21 浏览量:1508

    摘要

    环境中的抗生素抗药性基因(ARG)和微塑料因其对人体健康的潜在风险而备受公众关注。微塑料可以形成独特的细菌群落并吸收周围环境中的污染物,从而提供潜在的宿主并施加ARGs的可能选择压力。我们提供有关此问题的科学文献的实用评估。总结了在废水处理厂,水生,陆地和空气环境中微塑料上ARGs的发生和运输。在不同的环境中,已经证实了ARG和抗生素抗性细菌在微塑料上的选择性富集。聚集体对于了解ARG在微塑料上的行为和运输可能至关重要,尤其是在水生和陆地环境中。微塑料可能是环境和动物之间ARG的载体。微塑料上污染物和致密细菌群落的积累为更高的转移速率和ARG的演化提供了有利条件。仍然需要更多的研究来了解ARG在微塑料上的富集,运输和转移,并为评估其对人体的健康危害提供基础。

    Antibiotic resistance genes (ARGs) and microplastics in the environment are of great public concern due to their potential risk to human health. Microplastics can form distinct bacterial communities and absorb pollutants from the surrounding environment, which provide potential hosts and exert possible selection pressure of ARGs. We provide a practical evaluation of the scientific literature regarding this issue. The occurrence and transport of ARGs on microplastics in wastewater treatment plants, aquatic, terrestrial, and air environments were summarized. Selective enrichment of ARGs and antibiotic resistance bacteria on microplastics have been confirmed in different environments. Aggregates may be crucial to understand the behavior and transport of ARGs on microplastics, especially in the aquatic and terrestrial environment. Microplastics could be a carrier of ARGs between the environment and animals. Accumulation of pollutants and dense bacterial communities on microplastics provide favorable conditions for higher transfer rate and evolution of ARGs. More studies are still needed to understand the enrichment, transport, and transfer of ARGs on microplastics and provide a fundamental basis for evaluating their exposure health risk to humans.

    https://www.sciencedirect.com/science/article/abs/pii/S0048969721007117