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Impact of the surrounding environment on antibiotic resistance genes carried by microplastics in mangroves

The Science of The Total Environment 2022 48 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 45 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Chengyong Li Lei He, Lei He, Lei He, Lei He, Lei He, Zhenqing Dai, Ruikun Sun, Lei He, Chengyong Li Lei He, Lei He, Lei He, Lei He, Zhenqing Dai, Chengyong Li Yueqin Zhang, Ruikun Sun, Lei He, Zhenqing Dai, Lei He, Yueqin Zhang, Lei He, Lei He, Lei He, Lei He, Lei He, Chengyong Li Zhenqing Dai, Ruikun Sun, Zhenqing Dai, Zhenqing Dai, Ting Li, Lei Ren, Lei He, Lei He, Lei He, Lei He, Lei He, Lei He, Lei He, Lei He, Lei He, Lei He, Ruikun Sun, Lei He, Zhenqing Dai, Ruikun Sun, Zhenqing Dai, Ruikun Sun, Ruikun Sun, Lei He, Zhenqing Dai, Zhenqing Dai, Shengli Sun, Shengli Sun, Zhenqing Dai, Ruikun Sun, Lei He, Zhenqing Dai, Zhenqing Dai, Lei He, Zhenqing Dai, Zhenqing Dai, Chengyong Li Zhenqing Dai, Zhenqing Dai, Zhenqing Dai, Lei He, Zhenqing Dai, Ruikun Sun, Ruikun Sun, Chengyong Li Zhenqing Dai, Zhenqing Dai, Yueqin Zhang, Zhenqing Dai, Lei He, Lei He, Yan‐Qiu Liang, Yan‐Qiu Liang, Lei Ren, Zhenqing Dai, Zhenqing Dai, Zhenqing Dai, Zhenqing Dai, Ruikun Sun, Ruikun Sun, Shengli Sun, Yueqin Zhang, Zhenqing Dai, Yueqin Zhang, Shengli Sun, Zhenqing Dai, Yan‐Qiu Liang, Zhenqing Dai, Zhenqing Dai, Shengli Sun, Chengyong Li Shengli Sun, Chengyong Li Yueqin Zhang, Yueqin Zhang, Shengli Sun, Lei Ren, Yueqin Zhang, Zhenqing Dai, Zhenqing Dai, Ruikun Sun, Ruikun Sun, Zhenqing Dai, Zhenqing Dai, Yueqin Zhang, Shengli Sun, Shengli Sun, Shengli Sun, Chengyong Li Chengyong Li Chengyong Li Chengyong Li Chengyong Li Zhenqing Dai, Zhenqing Dai, Zhenqing Dai, Ruikun Sun, Ruikun Sun, Yueqin Zhang, Yan‐Qiu Liang, Lei He, Shengli Sun, Chengyong Li Chengyong Li Chengyong Li Yueqin Zhang, Yueqin Zhang, Shengli Sun, Chengyong Li Chengyong Li Chengyong Li Shengli Sun, Zhenqing Dai, Chengyong Li Chengyong Li Chengyong Li Chengyong Li Ruikun Sun, Chengyong Li Shengli Sun, Shengli Sun, Zhenqing Dai, Lei He, Yan‐Qiu Liang, Chengyong Li Yan‐Qiu Liang, Lei Ren, Chengyong Li Chengyong Li Chengyong Li Chengyong Li Chengyong Li Lei He, Yueqin Zhang, Zhenqing Dai, Ruikun Sun, Yan‐Qiu Liang, Yan‐Qiu Liang, Yan‐Qiu Liang, Lei Ren, Lei Ren, Lei Ren, Shengli Sun, Yueqin Zhang, Zhenqing Dai, Chengyong Li Chengyong Li Yueqin Zhang, Chengyong Li Yueqin Zhang, Yueqin Zhang, Lei Ren, Shengli Sun, Lei Ren, Shengli Sun, Chengyong Li Yueqin Zhang, Chengyong Li Chengyong Li Chengyong Li Yueqin Zhang, Chengyong Li Yueqin Zhang, Shengli Sun, Chengyong Li Chengyong Li Shengli Sun, Chengyong Li Chengyong Li Lei Ren, Yan‐Qiu Liang, Yueqin Zhang, Yueqin Zhang, Chengyong Li

Summary

Researchers buried five plastic types in mangrove ecosystems with different surrounding environments and used qPCR to quantify antibiotic resistance genes (ARGs) on the plastic surfaces, finding higher ARG abundance in urban mangroves than in protected or aquaculture areas. Polypropylene and HDPE were preferred substrates for ARG-carrying bacteria, and proximity to human activities was the main driver of ARG distribution.

The pollution of antibiotic resistance genes (ARGs) carried by microplastics (MPs) is a growing concern. Mangroves are located at the intersection of land and sea and are seriously affected by MP pollution. However, few studies have systematic research evaluating the transmission risk of ARGs carried by MPs in mangroves. We conducted in situ experiments by burying five different MPs (polypropylene, high-density polyethylene, polystyrene, polyethylene glycol terephthalate, and polycaprolactone particles) in mangroves with different surrounding environments. A total of 10 genes in the MPs of mangroves were detected using quantitative real-time polymerase chain reactions, including eight ARGs and two mobile genetic elements (MGEs). The abundance of ARGs in Guanhai park mangroves in living areas (GH) was higher than that of Gaoqiao mangroves in protected areas (GQ) and Beiyue dike mangroves in aquaculture pond areas (BY). Pathogenic bacteria, such as Acinetobacter, Bacillus, and Vibrio were found on the MP surfaces of the mangroves. The number of ARGs carried by multiple drug-resistant bacteria in the GH mangroves was greater than that in the GQ and BY mangroves. Moreover, the ARGs carried by MPs in GH mangroves had the highest potential transmission risk by horizontal gene transfer. Sociometric and environmental factors were the main drivers shaping the distribution characteristics of ARGs and MGEs. Polypropylene and high-density polyethylene particles are preferred substrates for obtaining diffuse ARGs. This study investigated the drivers of ARGs in the MPs of mangroves and provided essential guidance on the use and handling of plastics.

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