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首页> 外文期刊>Journal of Environmental Science and Health >Phenol degrading ability of Rhodococcus pyrinidivorans and Pseudomonas aeruginosa isolated from activated sludge plants in South Africa
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Phenol degrading ability of Rhodococcus pyrinidivorans and Pseudomonas aeruginosa isolated from activated sludge plants in South Africa

机译：从南非活性污泥植物中分离出来的Rhodococcus pyrinidivorans和铜绿假单胞菌的苯酚降解能力

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摘要

Phenol, a common constituent in many industrial wastewaters is a major pollutant and has several adverse effects on the environment. The potential of various microorganisms to utilize phenol for their metabolic activity has been observed to be an effective means of remediating this toxic compound from the environment particularly wastewater. Five indigenous bacterial isolates (PD1-PD5) were obtained from phenol bearing industrial wastewater using the mineral salts medium. The isolates were further characterized based on their morphology, biochemical reactions and 16S rRNA phylogeny. The 16S rRNA sequence analysis using universal primers (27f/1492r) revealed that PD_1, PD_2, PD_3 and PD_4 were closely related to the actinomycete Rhodococcus pyrinidivorans (99%) and PD5 to Pseudomonas aeruginosa (99%). Growth kinetic patterns and phenol degradation abilities of the two representative isolates (PD| and PD5) were also evaluated. Both the species were effective in utilizing phenol as the sole carbon source and could tolerate phenol concentrations of up to 500 to 600 mg/L. The ability of these isolates to utilize higher concentrations of phenol as their sole carbon source makes them potential candidates and better competitors in the bioremediation process.
机译：苯酚是许多工业废水中的常见成分，是主要污染物，对环境有若干不利影响。已经观察到各种微生物利用苯酚进行其代谢活性的潜力是从环境特别是废水中补救该有毒化合物的有效手段。使用矿物盐介质从含酚的工业废水中获得了五种本地细菌分离株（PD1-PD5）。根据分离物的形态，生化反应和16S rRNA系统发育，对其进行进一步表征。使用通用引物（27f / 1492r）进行的16S rRNA序列分析显示，PD_1，PD_2，PD_3和PD_4与放线菌嗜热红球菌（99％）和PD5与铜绿假单胞菌（99％）密切相关。还评估了两个代表性分离株（PD |和PD5）的生长动力学模式和苯酚降解能力。两种物种均有效利用苯酚作为唯一的碳源，并且可以耐受高达500至600 mg / L的苯酚浓度。这些分离物利用较高浓度的苯酚作为唯一碳源的能力使其成为生物修复过程中的潜在候选者和更好的竞争者。

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  • 来源
    《Journal of Environmental Science and Health》 |2013年第8期|947-953|共7页
  • 作者

    SHEENA KUMARI; DERESHEN CHETTY; NISHANI RAMDHANI; FAIZAL BUX;

  • 作者单位

    Institute for Water and Wastewater Technology, Durban University of Technology, Durban, South Africa;

    Institute for Water and Wastewater Technology, Durban University of Technology, Durban, South Africa;

    Institute for Water and Wastewater Technology, Durban University of Technology, Durban, South Africa;

    Institute for Water and Wastewater Technology, Durban University of Technology, Durban, South Africa;

  • 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

    Activated sludge; phenol-degrading bacteria; Pseudomonas; Rhodococcus; PCR;

    机译：活性污泥;苯酚降解细菌;假单胞菌;红球菌;聚合酶链反应;

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