Application of PCR-DGGE to analyse the yeast population dynamics in slurry reactors during degradation of polycyclic aromatic hydrocarbons in weathered oil
文献类型：期刊论文
| 作者 | Hesham, Abd El-Latif; Khan, Sardar; Liu, XinChun; Zhang, Yu ; Wang, Zhenyu; Yang, Min
|
| 刊名 | YEAST
 |
| 出版日期 | 2006 |
| 卷号 | 23期号:12页码:879-887 |
| 关键词 | degradation PAHs slurry reactor isolation identification 26S rRNA gene PCR-DGGE |
| 英文摘要 | Slurry-phase reactors have been used to investigate the biodegradation feasibility of polycyclic aromatic hydrocarbons (PAHs) in weathered crude oil, by mixed culture containing five PAHs-degrading yeast strains. Yeasts were isolated from the oily soil by enrichment culture, using phenanthrene as a sole carbon source, and identified based on the 26S ribosomal DNA (rDNA) sequence. Yeast strains belonged to the genera Candida, Pichia, Rhodotorula and Sporidiobolus. The experiment was carried out for a period of 6 weeks at room temperature with a solid: liquid ratio of 50% w/w. The results showed that high removal efficiency was obtained for all PAHs, including low molecular weight (LMW) and high molecular weight (HMW) compounds (89.3-98.6% and 66.3-89.4% within 6 weeks, respectively). The higher removal efficiency for HMW-PAHs obtained in this work suggested that yeast strains mixture could play an important role to reclaim oil-contaminated sites. Denaturing gradient gel electrophoresis (DGGE) of polymerase chain reaction (PCR)-amplified 26S rRNA genes was used to follow the changes of yeast populations during the slurry reactor process. The results of DGGE indicated that Candida maltosa-like and Pichia guilliermondii were the dominant species but Rhodotorula dairenensis appeared as a weak band and Sporidiobolus salmonicolor and Pichia anomala disappeared during the study. Moreover, the results showed that all of the five strains, including the two belonging to the same genus, could be differentiated from each other in the DGGE profile. Sequences of yeast isolates reported in this study have been deposited in the GenBank database under Accession Nos DQ302753, DQ303392, DQ303393, DQ350841 and DQ432635. Copyright (c) 2006 John Wiley & Sons, Ltd. |
| WOS记录号 | WOS:000242009800004 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/22967]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Hesham, Abd El-Latif,Khan, Sardar,Liu, XinChun,et al. Application of PCR-DGGE to analyse the yeast population dynamics in slurry reactors during degradation of polycyclic aromatic hydrocarbons in weathered oil[J]. YEAST,2006,23(12):879-887. |
| APA | Hesham, Abd El-Latif,Khan, Sardar,Liu, XinChun,Zhang, Yu,Wang, Zhenyu,&Yang, Min.(2006).Application of PCR-DGGE to analyse the yeast population dynamics in slurry reactors during degradation of polycyclic aromatic hydrocarbons in weathered oil.YEAST,23(12),879-887. |
| MLA | Hesham, Abd El-Latif,et al."Application of PCR-DGGE to analyse the yeast population dynamics in slurry reactors during degradation of polycyclic aromatic hydrocarbons in weathered oil".YEAST 23.12(2006):879-887. |
入库方式： OAI收割
来源：生态环境研究中心
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