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首页> 外文期刊>Environmental Science & Technology >Phytoremediation of Trichlorophenol by Phase II Metabolism in Transgenic Arabidopsis Overexpressing a Populus Glucosyltransferase
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Phytoremediation of Trichlorophenol by Phase II Metabolism in Transgenic Arabidopsis Overexpressing a Populus Glucosyltransferase

机译：植物过氧化三氯酚的II期代谢在过量表达胡杨葡萄糖基转移酶的转基因拟南芥中

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摘要

Trichlorophenol (TCP) and its derivatives are introduced into the environment through numerous sources, including wood preservatives and biocides. Environmental contamination by TCPs is associated with human health risks, necessitating the development of cost-effective remediation techniques. Efficient phytoremediation of TCP is potentially feasible because it contains a hydroxyl group and is suitable for direct phase II metabolism. In this study, we present a system for TCP phytoremediation based on sugar conjugation by overexpressing a Populus putative UDP-glc-dependent glyco- syltransferase (UGT). The enzyme PtUGT72Bl displayed the highest TCP-conjugating activity among all reported UGTs. Transgenic Arabidopsis demonstrated significantly enhanced tolerances to 2,4,5-TCP and 2,4,6-TCP. Transgenic plants also exhibited a strikingly higher capacity to remove TCP from their media. This work indicates that Populus UGT overexpression in Arabidopsis may be an efficient method for phytoremovai and degradation of TCP. Our findings have the potential to provide a suitable remediation strategy for sites contaminated by TCP.
机译：三氯苯酚（TCP）及其衍生物通过多种来源被引入环境，包括木材防腐剂和杀生物剂。技术合作计划对环境的污染与人类健康风险相关，因此必须开发具有成本效益的补救技术。 TCP的高效植物修复可能是可行的，因为它包含一个羟基并且适合直接II期代谢。在这项研究中，我们提出了一种通过过度表达胡杨推定的UDP-glc依赖性糖基转移酶（UGT）而基于糖结合的TCP植物修复系统。在所有报道的UGT中，酶PtUGT72B1显示出最高的TCP结合活性。转基因拟南芥证明对2,4,5-TCP和2,4,6-TCP的耐受性显着提高。转基因植物还显示出从其培养基中去除TCP的惊人能力。这项工作表明，拟南芥中的胡杨UGT过表达可能是一种有效的去除植物和降解TCP的方法。我们的发现有可能为受TCP污染的站点提供合适的补救策略。

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  • 来源
    《Environmental Science & Technology》 |2012年第7期|p.4016-4024|共9页
  • 作者

    Zhen-Hong Su; Zhi-Sheng Xu; Ri-He Peng; Yong-Sheng Tian; Wei Zhao; Hong-Juan Han; Quan-Hong Yao; Ai-Zhong Wu;

  • 作者单位

    College of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China,Shanghai Key Laboratory of Agricultural Genetics and Breeding, Agro-Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China;

    Shanghai Key Laboratory of Agricultural Genetics and Breeding, Agro-Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China;

    Shanghai Key Laboratory of Agricultural Genetics and Breeding, Agro-Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China;

    Shanghai Key Laboratory of Agricultural Genetics and Breeding, Agro-Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China;

    Shanghai Key Laboratory of Agricultural Genetics and Breeding, Agro-Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China;

    Shanghai Key Laboratory of Agricultural Genetics and Breeding, Agro-Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China;

    Shanghai Key Laboratory of Agricultural Genetics and Breeding, Agro-Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China;

    College of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, 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);
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