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首页> 外文期刊>Environmental Science & Technology >Oxytetracycline and Ciprofloxacin Exposure Altered the Composition of Protistan Consumers in an Agricultural Soil
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Oxytetracycline and Ciprofloxacin Exposure Altered the Composition of Protistan Consumers in an Agricultural Soil

机译：氧赤霉素和环丙沙星暴露改变了农业土壤中普尔司司体消费者的组成

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摘要

Protists, an integral component of soil microbiome, are one of the main predators of bacteria. Bacteria can produce toxic secondary metabolites, e.g., antibiotics to fight stress under the predation pressure of protists; however, impacts of antibiotics on the profile of protists in soils remain unclear. Here, we constructed a microcosm incubation to investigate the effects of two common antibiotics, oxytetracycline and ciprofloxacin, on the protistan and bacterial communities in an arable soil. Rhizaria were the most abundant protist supergroup, followed by Amoebozoa, Stramenopiles, and Aveolata. Among trophic functional groups, consumers were predominant within the protistan community. The protistan alpha-diversity was not significantly changed, while the bacterial alpha-diversity was decreased under the pressure of antibiotics. Nevertheless, the antibiotic exposure considerably reduced the relative abundance of protistan lineages in Rhizaria and Amoebozoa, which were the dominant supergroups of protistan consumers, while increased the relative abundance of other consumer and phototrophic protists. Altogether, we provide novel experimental evidence that the bacterivorous consumers, an important functional group of protists, were more sensitive to antibiotics than other functional groups. Our findings have potential implications for the induced alterations of protistan community and their ecological functions under the scenarios of projected increasing global antibiotic usage.
机译：土壤微生物组的整体成分，是土壤微生物组的一种整体组分，是细菌的主要捕食者之一。细菌可以产生有毒的次级代谢产物，例如，抗生素在原权捕食压力下抗击应力;然而，抗生素对土壤中保护物谱的影响仍然不清楚。在这里，我们构建了一种微观孵育，探讨了两种常见的抗生素，催产素和环丙沙星对耕地中的蛋白质和细菌群落的影响。 rhizaria是最丰富的质量超级组，其次是amoeboozoa，stramenopiles和aveolata。在营养官能团中，消费者在普遍社区内占主导地位。 Protistanα-多样性没有显着改变，而在抗生素的压力下细菌α-多样性降低。然而，抗生素曝光显着降低了rhizaria和Amoebozoa的相对丰度，这是普罗斯坦消费者的主要超级组，而增加其他消费者和镜头保护的相对丰富。完全，我们提供了新的实验证据，即诱导抗菌剂的强子消费者是抗生素的重要功能，比其他官能团更敏感。我们的调查结果对突袭群落的诱导变化及其在预计的全球抗生素使用情况的情况下诱导了俄国社区及其生态职能的潜在影响。

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  • 来源
    《Environmental Science & Technology》 |2020年第15期|9556-9563|共8页
  • 作者

    Bao-Anh T. Nguyen; Qing-Lin Chen; Ji-Zheng He; Hang-Wei Hu;

  • 作者单位

    Faculty of Veterinary and Agricultural Sciences The University of Melbourne Parkville Victoria 3010 Australia;

    Faculty of Veterinary and Agricultural Sciences The University of Melbourne Parkville Victoria 3010 Australia;

    Faculty of Veterinary and Agricultural Sciences The University of Melbourne Parkville Victoria 3010 Australia;

    Faculty of Veterinary and Agricultural Sciences The University of Melbourne Parkville Victoria 3010 Australia;

  • 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);
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  • 正文语种 eng
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