Mineralization of pyrene induced by interaction between Ochrobactrum sp PW and ryegrass in spiked soil
文献类型：期刊论文
| 作者 | Lin, Aijun; Zou, Dexun; Qiao, Min; Wei, Lianshuang; Liu, Tuo; Yang, Xiaojin |
| 刊名 | ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
 |
| 出版日期 | 2016-11 |
| 卷号 | 133页码:290-296 |
| 关键词 | Degradation Bacteria Pw Ryegrass Pyrene Combined Remediation |
| DOI | 10.1016/j.ecoenv.2016.07.032 |
| 英文摘要 | 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 33 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. (C) 2016 Elsevier Inc. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/36260]  |
| 专题 | 生态环境研究中心_土壤环境科学实验室 |
| 推荐引用方式 GB/T 7714 | Lin, Aijun,Zou, Dexun,Qiao, Min,et al. Mineralization of pyrene induced by interaction between Ochrobactrum sp PW and ryegrass in spiked soil[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2016,133:290-296. |
| APA | Lin, Aijun,Zou, Dexun,Qiao, Min,Wei, Lianshuang,Liu, Tuo,&Yang, Xiaojin.(2016).Mineralization of pyrene induced by interaction between Ochrobactrum sp PW and ryegrass in spiked soil.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,133,290-296. |
| MLA | Lin, Aijun,et al."Mineralization of pyrene induced by interaction between Ochrobactrum sp PW and ryegrass in spiked soil".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 133(2016):290-296. |
入库方式： OAI收割
来源：生态环境研究中心
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