Mineralization of pyrene induced by interaction between Ochrobactrum sp PW and ryegrass in spiked soil

doi:10.1016/j.ecoenv.2016.07.032

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 土壤环境科学实验室

	Mineralization of pyrene induced by interaction between Ochrobactrum sp PW and ryegrass in spiked soil
	Lin, Aijun; Zou, Dexun; Qiao, Min; Wei, Lianshuang; Liu, Tuo; Yang, Xiaojin
刊名	ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
	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.
内容类型	期刊论文
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.