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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Hu, Zhiguang Zhang, Ying Xiong, Minghua Li, Chunyan Cheng, Xiaosong |
| Description | Country affiliation: China Author Affiliation: Xiong M ( College of Resource and Environment, Northeast Agricultural University, Harbin, China.) |
| Abstract | The recently isolated bacterial strain Rhodococcus sp. D310-1 can degrade high concentrations of chlorimuron-ethyl (up to 1000 mg L(-1)), indicating its potential for the bioremediation of soil contaminated with high levels of chlorimuron-ethyl. In this study, Rhodococcus sp. D310-1 was tagged with green fluorescent protein gene (gfp) to track its survival in soil. Subsequently, degradation activity of the gfp-tagged strain and its effects on indigenous microbial community were analyzed. Results showed the cell numbers of Rhodococcus sp. D310-1::gfp in non-sterilized soil maintained at 8.5 × 10(4) cells g(-1) dry soil 45 days after inoculation of 7.74 × 10(6) cells g(-1) dry soil and approximately 49% of chlorimuron-ethyl was removed. However, The cell numbers of Rhodococcus sp. D310-1::gfp in sterilized samples increased gradually to 7.85 × 10(7) cells g(-1) dry soil and approximately 78% of chlorimuron-ethyl was removed. PCR-DGGE demonstrated that inoculation of this gfp-tagged strain in chlorimuron-ethyl-contaminated soil has negligible impact on the community structure of bacteria, actinomycetes and fungi. These results indicate that Rhodococcus sp. D310-1 is effective for the remediation of chlorimuron-ethyl-contaminated soil and also provides valuable information about the behavior of the inoculant population during bioremediation, which could be directly used in the risk assessment of inoculant population and optimization of bioremediation process. |
| ISSN | 03043894 |
| Volume Number | 252-253 |
| e-ISSN | 18733336 |
| Journal | Journal of Hazardous Materials |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2013-05-15 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Pyrimidines Toxicity Rhodococcus Drug Effects Soil Microbiology Soil Pollutants Sulfonylurea Compounds Bacteria Genetics Isolation & Purification Biodegradation, Environmental Biodiversity Dna, Bacterial Dna, Fungal Fungi Green Fluorescent Proteins Metabolism Risk Assessment Journal Article Research Support, Non-u.s. Gov't Discipline Environmental Science Discipline Environmental Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Pollution Waste Management and Disposal Health, Toxicology and Mutagenesis Environmental Engineering |
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