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Effect of Pb(II) on phenanthrene degradation by new isolated Bacillus sp P1

机译：Pb（II）对新分离芽孢杆菌SP P1菲苯甲苯降解的影响

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摘要

A polycyclic aromatic hydrocarbon (PAH)-degrading microbe was isolated and the effect of Pb(II) on the degradation of phenanthrene (PHE) by this microbe was studied in this research. The changes in the metabolism, protein content, enzyme activity and PHE degradation induced by Pb(II) were investigated to elucidate the effect of Pb(II) on the degradation of PHE. The protein content, catechol 2,3-dioxygenase activity and phenanthrene-degrading ability of the enzymes were all enhanced at low concentrations of Pb(II) (below 50 mg L-1) but decreased at relatively higher concentrations (100 to 300 mg L-1) of Pb(II). These results indicate that the presence of Pb(II) is relevant to enzymatic changes in this PAH-biodegrading microbe: it helps the process of PHE biodegradation at low concentrations, but impairs PHE biodegradation at excessive concentrations.
机译：分离了多环芳烃（PAH）晶体烃（PAH）晶体烃（PB（II）在该研究中研究了该微生物在该微生物降解菲蒽（PHE）的效果。 研究了PB（II）诱导的新陈代谢，蛋白质含量，酶活性和PHE降解的变化，以阐明PB（II）对PHE降解的影响。 酶的蛋白质含量，儿茶酚2,3-二恶烷酶活性和酶的菲在低浓度的Pb（II）（低于50mg L-1）下增强，但在相对较高的浓度下降低（100至300 mgL -1）Pb（II）。 这些结果表明，PB（II）的存在与该PAH-生物降解微生物中的酶促变化相关：它有助于在低浓度下的PHE生物降解过程，但在过量浓度下损害PHE生物降解。

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  • 来源
    《RSC Advances》 |2015年第69期|共7页
  • 作者

    Liu Shao-Heng; Zeng Guang-Ming; Niu Qiu-Ya; Gong Ji-Lai; Hu Xin-Jiang; Lu Lun-Hui; Zhou Yao-Yu; Hu Xi; Chen Ming; Yan Ming;

  • 作者单位

    Hunan Univ Coll Environm Sci &

    Engn Changsha 410082 Hunan Peoples R China;

    Hunan Univ Coll Environm Sci &

    Engn Changsha 410082 Hunan Peoples R China;

    Hunan Univ Coll Environm Sci &

    Engn Changsha 410082 Hunan Peoples R China;

    Hunan Univ Coll Environm Sci &

    Engn Changsha 410082 Hunan Peoples R China;

    Hunan Univ Coll Environm Sci &

    Engn Changsha 410082 Hunan Peoples R China;

    Hunan Univ Coll Environm Sci &

    Engn Changsha 410082 Hunan Peoples R China;

    Hunan Univ Coll Environm Sci &

    Engn Changsha 410082 Hunan Peoples R China;

    Hunan Univ Coll Environm Sci &

    Engn Changsha 410082 Hunan Peoples R China;

    Hunan Univ Coll Environm Sci &

    Engn Changsha 410082 Hunan Peoples R China;

    Hunan Univ Coll Environm Sci &

    Engn Changsha 410082 Hunan Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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