Bacterial communities associated with aerobic degradation of polybrominated diphenyl ethers from river sediments
| Autor: | Huang-Wen Huang, Bea-Ven Chang, Chu-Wen Yang, Wei-Liang Chao |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
endocrine system
Geologic Sediments Health Toxicology and Mutagenesis Microbial Consortia Molecular Sequence Data Polybrominated Biphenyls Microbial metabolism Taiwan Polybrominated diphenyl ethers Rivers RNA Ribosomal 16S Halogenated Diphenyl Ethers Environmental Chemistry Ecotoxicology reproductive and urinary physiology DNA Primers Pollutant Bacteria Base Sequence Chemistry General Medicine Sequence Analysis DNA Pollution Aerobiosis Congener Biodegradation Environmental Microbial population biology Environmental chemistry Metagenomics Water Pollutants Chemical |
| Zdroj: | Environmental science and pollution research international. 22(5) |
| ISSN: | 1614-7499 |
| Popis: | Polybrominated diphenyl ethers (PBDEs) are persistent organic pollutants and have therefore drawn much environmental concern. We aimed to compare aerobic degradation of different PBDE congeners under various treatments and reveal the bacterial community associated with PBDE degradation in sediment. Results of this study indicate that degradation rates of BDE-15 were enhanced 45.1 and 81.3 % with the addition of suspended and microencapsulated Pseudomonas sp., respectively. However, the degradation rates of BDE-28, BDE-47, BDE-99, and BDE-100 did not differ among experimental treatments. Degradation rates of PBDE congeners were in the order of BDE-15 > BDE-28 > BDE-47 > BDE-99 > BDE-100. Using a pyrosequencing-based metagenomic approach, we found that addition of various treatments altered the microbial community composition in the sediment. Twenty-four bacterial genera associated with degradation of PBDEs; six are the core bacterial genera common among PBDE degraders. The diverse bacterial composition among different PBDE congener degradation indicates different combinations of bacteria involved in degradation of different PBDE congeners. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink