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首页> 外文期刊>Environmental Science & Technology >Phytoremediation of Phenanthrene by Transgenic Plants Transformed with a Naphthalene Dioxygenase System from Pseudomonas
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Phytoremediation of Phenanthrene by Transgenic Plants Transformed with a Naphthalene Dioxygenase System from Pseudomonas

机译：假单胞菌萘双加氧酶系统转化的转基因植物对菲的修复作用

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摘要

Genes from microbes for degrading polycyclic aromatic hydrocarbons (PAHs) are seldom used to improve the ability of plants to remediate the pollution because the initiation of the microbial degradation of PAHs is catalyzed by a multienzyme system. In this study, for the first time, we have successfully transferred the complex naphthalene dioxygenase system of Pseudomonas into Arabidopsis and rice, the model dicot and monocot plant. As in bacteria, all four genes of the naphthalene dioxygenase system can be simultaneously expressed and assembled to an active enzyme in transgenic plants. The naphthalene dioxygenase system can develop the capacity of plants to tolerate a high concentration of phenanthrene and metabolize phenanthrene in vivo. As a result, transgenic plants showed improved uptake of phenanthrene from the environment over wild-type plants. In addition, phenanthrene concentrations in shoots and roots of transgenic plants were generally lower than that of wild type plants. Transgenic plants with a naphthalene dioxygenase system bring the promise of an efficient and environmental-friendly technology for cleaning up PAHs contaminated soil and water.
机译：微生物降解多环芳烃（PAHs）的基因很少用于提高植物修复污染的能力，因为PAHs的微生物降解是由多酶系统催化的。在本研究中，我们首次成功地将假单胞菌的复杂萘双加氧酶系统转移到拟南芥和水稻，双子叶植物和单子叶植物中。如在细菌中一样，萘双加氧酶系统的所有四个基因都可以在转基因植物中同时表达并组装成活性酶。萘双加氧酶系统可以提高植物在体内耐受高浓度菲和代谢菲的能力。结果，与野生型植物相比，转基因植物从环境中吸收了更多的菲。另外，转基因植物的芽和根中的菲浓度通常低于野生型植物。带有萘双加氧酶系统的转基因植物带来了一种高效，环保的技术的希望，该技术可以清除污染了土壤和水的多环芳烃。

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  • 来源
    《Environmental Science & Technology》 |2014年第21期|12824-12832|共9页
  • 作者

    Ri-He Peng; Xiao-Yan Fu; Wei Zhao; Yong-Sheng Tian; Bo Zhu; Hong-Juan Han; Jing Xu; Quan-Hong Yao;

  • 作者单位

    Agro-Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, 2901 Beidi Rd, Shanghai, 201106, People's Republic of China;

    Agro-Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, 2901 Beidi Rd, Shanghai, 201106, People's Republic of China;

    Agro-Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, 2901 Beidi Rd, Shanghai, 201106, People's Republic of China;

    Agro-Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, 2901 Beidi Rd, Shanghai, 201106, People's Republic of China;

    Agro-Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, 2901 Beidi Rd, Shanghai, 201106, People's Republic of China;

    Agro-Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, 2901 Beidi Rd, Shanghai, 201106, People's Republic of China;

    Agro-Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, 2901 Beidi Rd, Shanghai, 201106, People's Republic of China;

    Agro-Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, 2901 Beidi Rd, Shanghai, 201106, People's Republic of China,National Center for Plant Gene Research (Shanghai), 300 Feng Lin Rd, Shanghai, 200032, People's Republic of 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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