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首页> 外文期刊>Marine pollution bulletin >Effects of pyrene and fluoranthene on the degradation characteristics of phenanthrene in the cometabolism process by Sphingomonas sp. strain PheB4 isolated from mangrove sediments
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Effects of pyrene and fluoranthene on the degradation characteristics of phenanthrene in the cometabolism process by Sphingomonas sp. strain PheB4 isolated from mangrove sediments

机译：and和荧蒽对鞘氨醇单孢菌在代谢过程中菲降解特性的影响。从红树林沉积物中分离出的PheB4菌株

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摘要

Cometabolism has been suggested as an attractive approach to enhance the degradation rates of high-molecular-weight polycyclic aromatic hydrocarbons (PAHs). However, the effects of these recalcitrant PAHs on the degradation characteristics of low-molecular-weight PAHs are largely unknown. This study was conducted to investigate the effects of pyrene (PYR) and fluoranthene (FLA) on the degradation characteristics of phenanthrene (PHE) in the cometabolism process by Sphingomonas sp. strain PheB4 isolated from mangrove sediments. Based on the kinetics and characteristics of PHE metabolites, it was proposed that the transformation of hydroxylated PHE into 1 -hydroxy-2-naphthoic acid was a rate-limiting step in the degradation of PHE by strain PheB4. Compared to a single addition of PYR or FLA, the presence of a mixture of PYR and FLA decreased the degradation rate of PHE to a larger extent, which was likely because it could inhibit the production of 1-hydroxy-2-naphthoic acid more effectively.
机译：已经提出了将新陈代谢作为提高高分子量多环芳烃（PAHs）降解速率的一种有吸引力的方法。但是，这些顽固的PAHs对低分子量PAHs降解特性的影响在很大程度上是未知的。进行了这项研究，以研究of（PYR）和荧蒽（FLA）对鞘氨醇单胞菌（Sphingomonas sp。）代谢过程中菲（PHE）降解特性的影响。从红树林沉积物中分离出的PheB4菌株。基于PHE代谢物的动力学和特征，提出羟基化的PHE向1-羟基-2-萘甲酸的转化是菌株PheB4降解PHE的限速步骤。与单次添加PYR或FLA相比，PYR和FLA混合物的存在在较大程度上降低了PHE的降解率，这可能是因为它可以更有效地抑制1-羟基-2-萘甲酸的产生。 。

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  • 来源
    《Marine pollution bulletin》 |2010年第11期|p.2043-2049|共7页
  • 作者

    Yin Zhong; Shichun Zou; Li Lin; Tiangang Luan; Rongliang Qiu; Nora F.Y. Tam;

  • 作者单位

    MOE Key Laboratory of Aquatic Product Safety/State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, People's Republic of China,Pearl River Delta Research Center of Environmental Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, People's Republic of China;

    MOE Key Laboratory of Aquatic Product Safety/State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, People's Republic of China;

    MOE Key Laboratory of Aquatic Product Safety/State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, People's Republic of China;

    MOE Key Laboratory of Aquatic Product Safety/State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, People's Republic of China State Key Laboratory of Biocontrol, School of Marine and Life Sciences, Sun Yat-sen University, Guangzhou 510275, People's Republic of China;

    MOE Key Laboratory of Aquatic Product Safety/State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, People's Republic of China;

    Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, 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);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    biodegradation; metabolite; kinetics; phenanthrene; 1-hydroxy-2-naphthoic acid;

    机译：生物降解代谢物动力学;菲;1-羟基-2-萘甲酸;

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