Advanced  
YIC-IR  > 中科院海岸带环境过程与生态修复重点实验室  > 期刊论文
题名:
Reductive dechlorination of polychlorinated biphenyls is coupled to nitrogen fixation by a legume-rhizobium symbiosis
作者: Tu, Chen1; Luo, Yongming1,2; Teng, Ying2; Christie, Peter2
刊名: SCIENCE CHINA-EARTH SCIENCES
ISSN号: 1674-7313
出版日期: 2018-03-01
卷号: 61, 期号:3, 页码:285-291
关键词: Biogeochemical cycling ; Legume-rhizobia symbiosis ; Microbe-assisted phytoremediation ; Nitrogen fixation ; Polychlorinated biphenyls ; Soil pollution and remediation ; Reductive dechlorination
DOI: 10.1007/s11430-017-9131-9
产权排序: 第1完成单位
通讯作者: Luo, Yongming(Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China)
英文摘要: Chlorinated persistent organic pollutants, including polychlorinated biphenyls (PCBs), represent a particularly serious environmental problem and human health risk worldwide. Leguminous plants and their symbiotic bacteria (rhizobia) are important components of the biogeochemical cycling of nitrogen in both agricultural and natural ecosystems. However, there have been relatively few detailed studies of the remediation of PCB-contaminated soils by legume-rhizobia symbionts. Here we report for the first time evidence of the reductive dechlorination of 2,4,4'-trichlorobiphenyl (PCB 28) by an alfalfa-rhizobium nitrogen fixing symbiont. Alfalfa (Medicago sativa L.) inoculated with wild-type Sinorhizobium meliloti had significantly larger biomass and PCB 28 accumulation than alfalfa inoculated with the nitrogenase negative mutant rhizobium SmY. Dechlorination products of PCB 28, 2,4'-dichlorobiphenyl (PCB 8), and the emission of chloride ion (Cl-) were also found to decrease significantly in the ineffective nodules infected by the mutant strain SmY. We therefore hypothesize that N2-fixation by the legume-rhizobium symbiont is coupled with the reductive dechlorination of PCBs within the nodules. The combination of these two processes is of great importance to the biogeochemical cycling and bioremediation of organochlorine pollutants in terrestrial ecosystems.
研究领域[WOS]: Geology
项目资助者: National Natural Science Foundation of China(41201313, 41230858)
关键词[WOS]: SINORHIZOBIUM-MELILOTI ; ORGANIC POLLUTANTS ; CONTAMINATED SOIL ; PHYTOREMEDIATION ; PCBS ; BIOREMEDIATION ; DEGRADATION ; BIODEGRADATION ; REMEDIATION ; ALFALFA
文章类型: Article
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000426574800004
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.yic.ac.cn/handle/133337/23579
Appears in Collections:中科院海岸带环境过程与生态修复重点实验室_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
2.Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China

Recommended Citation:
Tu, Chen,Luo, Yongming,Teng, Ying,et al. Reductive dechlorination of polychlorinated biphenyls is coupled to nitrogen fixation by a legume-rhizobium symbiosis[J]. SCIENCE CHINA-EARTH SCIENCES,2018,61(3):285-291.
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Tu, Chen]'s Articles
[Luo, Yongming]'s Articles
[Teng, Ying]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Tu, Chen]‘s Articles
[Luo, Yongming]‘s Articles
[Teng, Ying]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2018  中国科学院烟台海岸带研究所 - Feedback
Powered by CSpace