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论文类型：期刊论文

发表时间：2010-07-15

发表刊物：JOURNAL OF HAZARDOUS MATERIALS

收录刊物：SCIE、EI

卷号：179

期号：1-3

页面范围：729-734

ISSN号：0304-3894

关键字：Bioaugmentation; Dyella ginsengisoli LA-4; Biphenyl; Denaturing gradient gel electrophoresis (DGGE)

摘要：One high efficient biphenyl-degrading strain Dyella ginsengisoli LA-4 was inoculated into biphenyl-contaminated soil for bioaugmentation in this study. The results showed that bioaugmentation could accelerate the startup period of the biphenyl bioremediation process compared with the non-augmented one. PCR-DGGE fingerprints demonstrated that both of the diversity and pattern of microbial community were affected by the addition of strain LA-4 and biphenyl. Biphenyl-utilizing populations gradually increased and become the dominant species. The introduced strain LA-4 could be persistent and co-exist well with the indigenous populations. However, both of the strain LA-4 and indigenous microorganisms in the bioaugmented system would be partially inhibited by Zn(2+) and Ni(2+). This study suggests that it is feasible and potentially useful to remediate biphenyl-contaminated soil using bioaugmentation with D. ginsengisoli LA-4. (C) 2010 Elsevier B.V. All rights reserved.