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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Liu, Tuo Wei, Lianshuang Qiao, Min Zou, Dexun Yang, Xiaojin Lin, Aijun |
| Description | Author Affiliation: Liu T ( Department of Environmental Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China.); Wei L ( Department of Environmental Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China.); Qiao M ( Department of Soil Environmental Sciences, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China.); Zou D ( Department of Environmental Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China.); Yang X ( Department of Environmental Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China.); Lin A ( Department of Environmental Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China) |
| Abstract | This study was conducted to investigate the capability of pyrene-degrading bacterium Ochrobactrum sp. PW and ryegrass (Lolium multiflorum) grown alone and in combination on the degradation of pyrene in soil. After 60 days of ryegrass growth, plant biomass, pyrene-degrading microbial mass, soil enzyme activity (catalase activity and polyphenol oxidase activity) and residual concentration of pyrene in soils were determined. Higher dissipation rates were observed in PW inoculation treatments: ryegrass+PW rhizosphere soil (RP-r) and ryegrass+PW non-rhizosphere soil (RP-nr), than planting of ryegrass alone, rhizosphere (R-r) or non-rhizosphere (R-nr). The inoculation with PW significantly (p<0.05) increased the dry weight of ryegrass root and shoot, nearly 2.8 and 3.3 times higher than ryegrass treatment. The pyrene-degrading microbial mass indicated that a much larger mass of bacteria, actinobacteria were present in RP treatment. The catalase activity in all different treatments were significantly (p<0.05) higher than in with treatment R-nr, and the polyphenol oxidase activity was also significantly (p<0.05) increased by inoculation with PW, leading to enhanced mineralization of pyrene from soil. Our results suggest that adding of PAHs-degrading bacteria to soil can enhance remediation of PAHs contaminated soil, while improving plant growth. |
| File Format | HTM / HTML |
| ISSN | 01476513 |
| Journal | Ecotoxicology and Environmental Safety |
| Volume Number | 133 |
| e-ISSN | 10902414 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2016-11-01 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Content Type | Text |
| Resource Type | Article |
| Subject | Pollution Health, Toxicology and Mutagenesis Public Health, Environmental and Occupational Health |
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