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Changes of microbial community structures and functional genes during biodegradation of phenolic compounds under high salt condition 被引量：2

Changes of microbial community structures and functional genes during biodegradation of phenolic compounds under high salt condition
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摘要 The changes of microbial community structures and functional genes during the biodegradation of single phenol and phenol plus p-cresol under high salt condition were explored.It was found that the phenol-fed system（PFS） exhibited stronger degrading abilities and more stable biomass than that of the phenol plus p-cresol-fed system（PCFS）.The microbial community structures were revealed by a modern DNA fingerprint technique,ribosomal intergenic spacer analysis（RISA）.The results indicated that the microbial community of PFS changed obviously when gradually increased phenol concentration,while PCFS showed a little change.16S rRNA sequence analysis of the major bands showed that Alcanivorax sp.genus was predominant species during phenolic compounds degradation.Furthermore,amplified functional DNA restriction analysis（AFDRA） on phenol hydroxylase genes showed that the fingerprints were substantially different in the two systems,and the fingerprints were not the same during the different operational periods. The changes of microbial community structures and functional genes during the biodegradation of single phenol and phenol plus p-cresol under high salt condition were explored.It was found that the phenol-fed system（PFS） exhibited stronger degrading abilities and more stable biomass than that of the phenol plus p-cresol-fed system（PCFS）.The microbial community structures were revealed by a modern DNA fingerprint technique,ribosomal intergenic spacer analysis（RISA）.The results indicated that the microbial community of PFS changed obviously when gradually increased phenol concentration,while PCFS showed a little change.16S rRNA sequence analysis of the major bands showed that Alcanivorax sp.genus was predominant species during phenolic compounds degradation.Furthermore,amplified functional DNA restriction analysis（AFDRA） on phenol hydroxylase genes showed that the fingerprints were substantially different in the two systems,and the fingerprints were not the same during the different operational periods.
作者 WANG Ping,QU Yuanyuan,ZHOU Jiti School of Environmental and Biological Science and Technology,Dalian University of Technology,Dalian 116024,China.
出处 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2009年第6期821-826,共6页 环境科学学报（英文版）
基金 supported by the National Natural Science Foundation of China (No. 50608011)
关键词 phenolic compounds high salt phenol hydroxylase ribosomal intergenic spacer analysis amplified functional DNArestriction analysis phenolic compounds high salt phenol hydroxylase ribosomal intergenic spacer analysis amplified functional DNArestriction analysis
分类号 X172 [环境科学与工程—环境科学]
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参考文献29

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同被引文献26

  • 1W.Reichardt.Aromatic compound degradation by iron reducing bacteria isolated from irrigated tropical paddy soils[J].Journal of Environmental Sciences,2008,20(12):1487-1493. 被引量：6
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Journal of Environmental Sciences
2009年 第6期

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