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首页> 外文期刊>Environmental Science & Technology >Deciphering Potential Roles of Earthworms in Mitigation of Antibiotic Resistance in the Soils from Diverse Ecosystems
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Deciphering Potential Roles of Earthworms in Mitigation of Antibiotic Resistance in the Soils from Diverse Ecosystems

机译：蚯蚓在各种生态系统中减轻抗生素抗性抗生素抗性的潜在作用

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摘要

Earthworms are capable of redistributing bacteria and antibiotic resistance genes (ARGs) through soil profiles. However, our understanding of the earthworm gut microbiome and its interaction with the antibiotic resistome is still lacking. Here, we characterized the earthworm gut and soil microbiome and antibiotic resistome in natural and agricultural ecosystems at a national scale, and microcosm studies and field experiments were also employed to test the potential role of earthworms in dynamics of soil ARGs. The diversity and structure of bacterial communities were different between the earthworm gut and soil. A significant correlation between bacterial community dissimilarity and spatial distance between sites was identified in the earthworm gut. The earthworm gut consistently had lower ARGs than the surrounding soil. A significant reduction in the relative abundance of mobile genetic elements and dominant bacterial phylotypes that are the likely hosts of ARGs was observed in the earthworm gut compared to the surrounding soil, which might contribute to the decrease of ARGs in the earthworm gut. The microcosm studies and field experiments further confirmed that the presence of earthworms significantly reduced the number and abundance of ARGs in soils. Our study implies that earthworm-based bioremediation may be a method to reduce risks associated with the presence of ARGs in soils.
机译：蚯蚓能够通过土壤型材重新分配细菌和抗生素抗性基因（args）。然而，我们对蚯蚓肠道微生物组的理解及其与抗生素抗性的相互作用仍然缺乏。在这里，我们以全国范围的自然和农业生态系统中的蚯蚓肠道和土壤微生物组和抗生素抵抗力，以及微科学研究和田间实验也用于测试蚯蚓在土壤args动态中的潜在作用。细菌社区的多样性和结构在蚯蚓肠道和土壤之间是不同的。在蚯蚓肠道中鉴定了细菌群落不同与位点之间的空间距离之间的显着相关性。蚯蚓肠道始终比周围的土壤较低。与周围的土壤相比，在蚯蚓肠道中观察到蚯蚓肠道中的相对丰富的移动遗传元素和主要细菌植物的显着减少，这可能导致蚯蚓肠道中的args减少。微观研究和现场实验进一步证实，蚯蚓的存在显着降低了土壤中arg的数量和丰度。我们的研究意味着基于蚯蚓的生物化可能是减少与土壤中args相关相关的风险的方法。

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  • 来源
    《Environmental Science & Technology》 |2021年第11期|7445-7455|共11页
  • 作者

    Dong Zhu; Manuel Delgado-Baquerizo; Jian-Qiang Su; Jing Ding; Hu Li; Michael R. Gillings; Josep Penuelas; Yong-Guan Zhu;

  • 作者单位

    State Key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China;

    Departamento de Biologia y Geologia Fisica y Quimica Inorgdnica Escuela Superior de Ciencias Experimentales y Tecnologia Universidad Rey Juan Carlos 28933 Mostoles Spain;

    Key Lab of Urban Environment and Health Institute of Urban Environment Chinese Academy of Sciences Xiamen 361021 China;

    Key Lab of Urban Environment and Health Institute of Urban Environment Chinese Academy of Sciences Xiamen 361021 China;

    Key Lab of Urban Environment and Health Institute of Urban Environment Chinese Academy of Sciences Xiamen 361021 China;

    Department of Biological Sciences Macquarie University Sydney NSW 2109 Australia;

    CSIC Global Ecology Unit CREAF- CSIC- UAB Barcelona Catalonia 08193 Spain CREAF Barcelona Catalonia 08193 Spain;

    State Key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China Key Lab of Urban Environment and Health Institute of Urban Environment Chinese Academy of Sciences Xiamen 361021 China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    soil fauna; gut microbiota; bioremediation; antibiotic resistance genes; national scale; dominant bacterial phylotypes;

    机译：土壤粪便;gut microbiota;生物修复;抗生素抗性基因;全国规模;显性细菌植物;

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