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Contribution of environmental factors on the distribution of antibiotic resistance genes in agricultural soil

机译：环境因素对农业土壤抗生素抗性基因分布的贡献

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摘要

Antibiotic resistance (AR) has become a potential concern to public health. It is mainly associated with the overuse and misuse of antibiotics in the environment. Several factors influence the development and dissemination of antibiotic resistance genes (ARGs); however, the relative contribution of these factors has been scarcely characterized. To study the impact of each factor, we examined the effects of five antibiotics, eight heavy metals, five physicochemical properties, and bacterial community on the abundance of 310 ARGs in agricultural soils collected near a smelter. Tetracycline was found in the highest levels of all the samples compared to the other four antibiotics, with the most severe contamination (1738.534 mu g/kg) occurring in the sample farthest from the plant (2556 m), whereas the highest copy number of ARGs (sulfonamide resistance genes, 3.63 x 10(-1) copies/16SrRNA) and the worst heavy metal pollution (Cd, 18.900 mg/kg; Pb, 1938.000 mg/kg) were detected in the sample closet to the plant (741 m). Pearson and Spearman rank correlation analysis showed that the abundance of 84 ARGs was impacted by these four factors in the soil. The bacterial phyla contributed to 79.76% of ARGs variation, whereas antibiotics, heavy metals, and physicochemical properties contributed 4.76%, 1.19%, and 3.57%, respectively. Bacterial community was the main factor influencing the distribution of ARGs. Antibiotics and heavy metals may affect the distribution of ARGs not only by themselves but also by influencing the structure of bacterial community in the soil. The research provides insights into the different contributions of factors to AR control.
机译：None

著录项

  • 来源
    《European Journal of Soil Biology》 |2021年第1期|共10页
  • 作者

    Yang Fan; Zhang Fengli; Li Hongping; Wu Huiying; Zhao Hongcheng; Cheng Xuemin; Ba Yue; Huang Hui; Chen Shuaiyin; Zhu Jingyuan;

  • 作者单位

    Zhengzhou Univ Coll Publ Hlth 100 Kexue Ave Zhengzhou 450001 Henan Peoples R China;

    Henan Prov Orthoped Hosp Luoyang OrthopedicTraumatol Hosp Henan Prov Luoyang 471002 Henan Peoples R China;

    Zhengzhou Univ Coll Publ Hlth 100 Kexue Ave Zhengzhou 450001 Henan Peoples R China;

    Zhengzhou Univ Coll Publ Hlth 100 Kexue Ave Zhengzhou 450001 Henan Peoples R China;

    Zhengzhou Univ Coll Publ Hlth 100 Kexue Ave Zhengzhou 450001 Henan Peoples R China;

    Zhengzhou Univ Coll Publ Hlth 100 Kexue Ave Zhengzhou 450001 Henan Peoples R China;

    Zhengzhou Univ Coll Publ Hlth 100 Kexue Ave Zhengzhou 450001 Henan Peoples R China;

    Zhengzhou Univ Coll Publ Hlth 100 Kexue Ave Zhengzhou 450001 Henan Peoples R China;

    Zhengzhou Univ Coll Publ Hlth 100 Kexue Ave Zhengzhou 450001 Henan Peoples R China;

    Zhengzhou Univ Coll Publ Hlth 100 Kexue Ave Zhengzhou 450001 Henan Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 土壤生物学;
  • 关键词

    Antibiotic resistance genes; Agricultural soils; Bacterial community; Heavy metals; Antibiotics;

    机译：抗生素抗性基因;农业土壤;细菌群落;重金属;抗生素;

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