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首页> 外文期刊>Ground Water Monitoring & Remediation >Comparison of Salix Genotypes for Co-Phytofiltration of Iron and Manganese from Simulated Contaminated Groundwater in a Floating Culture System
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Comparison of Salix Genotypes for Co-Phytofiltration of Iron and Manganese from Simulated Contaminated Groundwater in a Floating Culture System

机译：悬浮培养系统中模拟污染地下水中铁和锰共植物滤过的柳基因型比较

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摘要

Groundwater contamination with iron (Fe) and manganese (Mn) is directly related to drink water safety. It remains challenging to simultaneously remove Fe and Mn from groundwater by conventional physical and chemical methods. Willows (Salix spp.) show promise for co-phytofiltration of Mn and Fe from groundwater. Here, a floating culture system was developed using willows for co-phytofiltration of Mn and Fe from simulated groundwater. Genotypic differences of willows were evaluated in terms of their tolerance to and accumulation of a mixture of Fe and Mn. The results showed that the growth responses of eight genotypes significantly differed to a mixture of Fe and Mn, ranging from growth inhibition to enhancement. Tolerance index analysis further indicated wide variation in the responses of willows. Tissue-specific analysis also revealed genotypic variation in the capacity of willows for translocation and accumulation of Fe and Mn. Compared with other genotypes, SB7 (Salix babylonica) and J842 (S. babylonica x Salix alba) demonstrated higher co-phytofiltration potentials for Fe and Mn based on tolerance, tissue metal concentrations, and shoot metal contents. Thus, both SB7 and J842 are candidates for co-phytofiltration of Fe and Mn from groundwater.
机译：铁（Fe）和锰（Mn）对地下水的污染与饮用水安全直接相关。通过常规的物理和化学方法同时从地下水中去除铁和锰仍然具有挑战性。柳树（Salix spp。）显示出对地下水中Mn和Fe进行共植物过滤的希望。在这里，使用柳树开发了一种漂浮培养系统，用于对模拟地下水中的Mn和Fe进行共植物过滤。根据柳树对铁锰混合物的耐受性和积累情况，对柳树的基因型差异进行了评估。结果表明，八种基因型的生长响应与铁和锰的混合物显着不同，从生长抑制到增强。耐受指数分析进一步表明，柳树的响应差异很大。组织特异性分析还显示了柳树铁和锰的转运和积累能力的基因型变化。与其他基因型相比，SB7（Salix babylonica）和J842（S. babylonica x Salix alba）基于耐受性，组织金属浓度和枝条金属含量显示出较高的Fe和Mn共植物滤过能力。因此，SB7和J842都是从地下水中对铁和锰进行共植物过滤的候选产品。

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  • 来源
    《Ground Water Monitoring & Remediation》 |2019年第3期|71-77|共7页
  • 作者

    Yang Weidong; Li Dong; Li Zhidong; Zheng Xiaoxiao; Hong Yi; Jiao Yangqiu; Huang Lizhen; Gao Xinran; Zhao Fengliang; Zhu Zhiqiang; Liu Yong;

  • 作者单位

    Hainan Univ, Coll Trop Crops, 58 Renmin Rd, Haikou 570228, Hainan, Peoples R China|Zhejiang Univ, Dept Environm Engn, Hangzhou 310058, Zhejiang, Peoples R China;

    Hainan Univ, Coll Trop Crops, 58 Renmin Rd, Haikou 570228, Hainan, Peoples R China;

    Hainan Univ, Coll Trop Crops, 58 Renmin Rd, Haikou 570228, Hainan, Peoples R China;

    Hainan Univ, Coll Trop Crops, 58 Renmin Rd, Haikou 570228, Hainan, Peoples R China;

    Hainan Univ, Coll Trop Crops, 58 Renmin Rd, Haikou 570228, Hainan, Peoples R China;

    Hainan Univ, Coll Trop Crops, 58 Renmin Rd, Haikou 570228, Hainan, Peoples R China;

    Hainan Univ, Coll Trop Crops, 58 Renmin Rd, Haikou 570228, Hainan, Peoples R China;

    Hainan Univ, Coll Trop Crops, 58 Renmin Rd, Haikou 570228, Hainan, Peoples R China;

    Chinese Acad Trop Agr Sci, Agroenvironm Environm & Plant Protect Inst, Haikou 571737, Hainan, Peoples R China;

    Hainan Univ, Coll Trop Crops, 58 Renmin Rd, Haikou 570228, Hainan, Peoples R China;

    Guangdong Inst Ecoenvironm Sci & Technol, Guangdong Key Lab Integrated Agroenvironm Pollut, Guangzhou 510650, Guangdong, Peoples R China;

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