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首页> 外文期刊>Journal of Environmental Management >Arbuscular mycorrhizal symbiosis in constructed wetlands with different substrates: Effects on the phytoremediation of ibuprofen and diclofenac
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Arbuscular mycorrhizal symbiosis in constructed wetlands with different substrates: Effects on the phytoremediation of ibuprofen and diclofenac

机译：具有不同底物的构造湿地的丛枝菌根共生：对布洛芬和双氯芬酸的植物症的影响

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摘要

This study investigated the role of arbuscular mycorrhizal fungal (AMF) for the removal of ibuprofen (IBU) and diclofenac (DCF) in constructed wetlands (CWs) with four different substrates. Results showed that AMF colonization in adsorptive substrate (perlite, vermiculite, and biochar) systems was higher than that in sand systems. AMF enhanced the tolerance of Glyceria maxima to the stress of IBU and DCF by promoting the activities of antioxidant enzymes (peroxidase and superoxide dismutase) and the contents of soluble protein, while decreasing the contents of malondialdehyde and O_2~(·-). The removal efficiencies of IBU and DCF were increased by 15%-18% and 25%-38% in adsorptive substrate systems compare to sand systems. Adsorptive substrates enhanced the accumulation of IBU and DCF in the rhizosphere and promoted the uptake of IBU and DCF by plant roots. AMF promoted the removal of IBU and DCF in sand systems but limited their reduction in adsorptive substrate systems. In all scenarios, the presence of AMF decreased the contents of CECs metabolites (2-OH IBU, CA IBU, and 4'-OH IBU) in the effluents and promoted the uptake of IBU by plant roots. Therefore, these results indicated that the addition of adsorptive substrates could enhance the removal of IBU and DCF in CWs. The role of AMF on the removal of IBU and DCF was influenced by CW substrate. These may provide useful information for the application of AMF in CWs to remove contaminants of emerging concern.
机译：本研究调查了丛枝菌根真菌（AMF）在具有四种不同底物中除去布洛芬（IBU）和双氯芬（DCLOFENAC（DCF）中的布洛芬（IBU）和双氯芬（DCF）。结果表明，吸附衬底（珍珠岩，蛭石和生物炭）系统中的AMF定植高于沙子系统中的含量。 AMF通过促进抗氧化酶（过氧化物酶和超氧化物歧化酶）的活性和可溶性蛋白质的含量，增强了甘油最大值和DCF的耐受性，同时降低了丙二醛和O_2〜（· - ）的含量。与沙子系统相比，IBU和DCF的去除效率增加了15％-18％和25％-38％。吸附衬底增强了根际IBU和DCF的积累，促进了植物根部的IBU和DCF的摄取。 AMF促进在砂系统中去除IBU和DCF，但限制了它们减少吸附衬底系统。在所有情景中，AMF的存在在流出物中降低了CEC代谢物（2-OH IBU，CA IBU和4'-OH IBU）的内容，并通过植物根部促进了IBU的摄取。因此，这些结果表明，添加吸附衬底可以增强CWS中的IBU和DCF的去除。 AMF对去除IBU和DCF的作用受CW衬底的影响。这些可以提供用于在CWS中施加AMF的有用信息，以消除新兴问题的污染物。

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  • 来源
    《Journal of Environmental Management》 |2021年第15期|113217.1-113217.11|共11页
  • 作者

    Bo Hu; Shanshan Hu; Jan Vymazal; Zhongbing Chen;

  • 作者单位

    Department of Applied Ecology Faculty of Environmental Sciences Czech University of Life Sciences Prague Kamycka 129 Praha-Suchdol 16500 Czech Republic;

    Department of Applied Ecology Faculty of Environmental Sciences Czech University of Life Sciences Prague Kamycka 129 Praha-Suchdol 16500 Czech Republic;

    Department of Applied Ecology Faculty of Environmental Sciences Czech University of Life Sciences Prague Kamycka 129 Praha-Suchdol 16500 Czech Republic;

    Department of Applied Ecology Faculty of Environmental Sciences Czech University of Life Sciences Prague Kamycka 129 Praha-Suchdol 16500 Czech Republic;

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

    Arbuscular mycorrhizal fungi; Constructed wetland; Diclofenac; Ibuprofen; Substrate; Metabolites;

    机译：丛枝菌根真菌;建造湿地;双氯芬酸;布洛芬;基质;代谢物;

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