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[1]谢苗苗 吴志能 王 曦 顾 捷 陈 林 王莹莹**.一株2,2’,4,4’-四溴联苯醚(BDE-47)厌氧降解菌的筛选鉴定及降解特性*[J].应用与环境生物学报,2018,24(04):1-10.[doi:10.3724/SP.J.1145.2017.11009]
 XIE,Miaomiao,WU Zhineng,et al.Isolation, identification of a BDE-47 degrading strain and its degradation study*[J].Chinese Journal of Applied & Environmental Biology,2018,24(04):1-10.[doi:10.3724/SP.J.1145.2017.11009]
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一株2,2’,4,4’-四溴联苯醚(BDE-47)厌氧降解菌的筛选鉴定及降解特性*()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
24卷
期数:
2018年04期
页码:
1-10
栏目:
研究论文
出版日期:
2018-08-25

文章信息/Info

Title:
Isolation, identification of a BDE-47 degrading strain and its degradation study*
文章编号:
201711009
作者:
谢苗苗 吴志能 王 曦 顾 捷 陈 林 王莹莹**
天津市城市生态环境修复与污染防治重点实验室,环境污染过程与基准教育部重点实验室,南开大学环境科学与工程学院 天津 300071
Author(s):
XIE Miaomiao WU Zhineng WANG Xi GU Jie CHEN Lin & WANG Yingying**
Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
关键词:
BDE-47降解菌筛选鉴定降解率电子受体
Keywords:
BDE-47 degrading?bacteria screening and identification degradation rate electron acceptor
DOI:
10.3724/SP.J.1145.2017.11009
摘要:
为去除环境中BDE-47的残留,通过以BDE-47为碳源的选择性培养基驯化,从电子垃圾拆解厂的土壤中分离出了1株厌氧降解BDE-47的纯菌种,命名为XM,并研究了其对BDE-47的降解特性。经16S rDNA 鉴定,XM属于兼性肠杆菌(Enterobacter sp.),当BDE-47浓度为525 μg/L,初始接菌量为7.1105 cells/mL时,培养35 d后降解率为35.8%,降解产物中检测到BDE-28。BDE-47的降解反应符合一级动力学,拟合结果为ln Ct = - 0.104t + 6.22 。选择以铁离子、硝酸根和硫酸根作为降解过程中外加的电子受体,BDE-47的降解率明显提高,分别为49.8%、59.1%和67.3%。以上研究结果表明,菌株XM能够有效的降解BDE-47,在电子垃圾污染的生物修复方面具有较好的参考意义和应用价值。(图5 表1 参53)
Abstract:
To clean up BDE-47 residues in the environment , a bacterial strain which was designated as XM capable of utilizing BDE-47 as the sole carbon source was isolated and screened from soil of from an e-waste recycling area in Tianjin, and the degradation properties were analyzed. The strain was preliminary identified as Enterobacter according to 16S rDNA gene sequence analysis. 35.8% of 525 μg/L BDE-47 was degraded by the strain in 35 d when the initial capacity?of?bacteria was 7.1105 cells/mL. The product in biodegradation of BDE-47 was BDE -28. The biodegradation of BDE-47 fitted well with the first-order kinetics, and its degradation kinetics was ln Ct = - 0.104t + 6.22 . With the addition of electron acceptor, such as Fe3+, SO42- and NO3-, the BDE-47 degradation rate was significantly increased to 49.8%, 59.1% and 67.3%, respectively. The above results revealed that XM could degrade BDE-47, which are of significance and application importance in the study of environment bioremediation of BDE-47.

相似文献/References:

[1]武洪杰,谭周亮,刘庆华,等.一株高浓度苯胺、苯酚降解菌的分离鉴定及降解特性[J].应用与环境生物学报,2010,16(02):252.[doi:10.3724/SP.J.1145.2010.00252]
 WU Hongjie,TAN Zhouliang,LIU Qinghua,et al.Isolation and Characterization of an Aniline-degrading and Phenol-degrading Bacterium[J].Chinese Journal of Applied & Environmental Biology,2010,16(04):252.[doi:10.3724/SP.J.1145.2010.00252]
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备注/Memo

备注/Memo:
收稿日期: 2017-11-05 ? ? 接受日期:2018-01-05
*国家重点基础研究发展计划(2015CB459000)资助
**通讯作者(E-mail: wangyy@nankai.edu.cn)
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更新日期/Last Update: 2018-01-10