Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2010-07-15

Journal: JOURNAL OF HAZARDOUS MATERIALS

Included Journals: EI、SCIE

Volume: 179

Issue: 1-3

Page Number: 729-734

ISSN: 0304-3894

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

Abstract: 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.