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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Yrjälä, Kim Keskinen, Anna-Kaisa Akerman, Marja-Leena Fortelius, Carola Sipilä, Timo P. |
| Description | Country affiliation: Finland Author Affiliation: Yrjälä K ( Department of Biological and Environmental Sciences, General Microbiology, University of Helsinki, P.O. Box 56, (Biocenter 1C), 00014 Helsinki, Finland. kim.yrjala@helsinki.fi) |
| Abstract | To reveal the degradation capacity of bacteria in PAH polluted soil and rhizosphere we combined bacterial extradiol ring-cleavage dioxygenase and 16S rRNA analysis in Betula pubescens rhizoremediation. Characterisation of the functional bacterial community by RFLP revealed novel environmental dioxygenases, and their putative hosts were studied by 16S rRNA amplification. Plant rhizosphere and PAH amendment effects were detected by the RFLP/T-RFLP analysis. Functional species richness increased in the birch rhizosphere and PAH amendment impacted the compositional diversity of the dioxygenases and the structural 16S rRNA community. A shift from an Acidobacteria and Verrucomicrobia dominated to an Alpha- and Betaproteobacteria dominated community structure was detected in polluted soil. Clone sequence analysis indicated catabolic significance of Burkholderia in PAH polluted soil. These results advance our understanding of rhizoremediation and unveil the extent of uncharacterized functional bacteria to benefit bioremediation by facilitating the development of the molecular tool box to monitor bacterial populations in biodegradation. |
| File Format | HTM / HTML |
| ISSN | 02697491 |
| Issue Number | 5 |
| Volume Number | 158 |
| e-ISSN | 18736424 |
| Journal | Environmental Pollution |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2010-05-01 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Environmental Discipline Science Bacteria Metabolism Biodiversity Polycyclic Hydrocarbons, Aromatic Soil Microbiology Soil Pollutants Drug Effects Genetics Isolation & Purification Biodegradation, Environmental Dna, Bacterial Molecular Sequence Data Phylogeny Pharmacology Rna, Ribosomal, 16s Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Health, Toxicology and Mutagenesis Pollution Medicine Toxicology |
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