中国科学院水生生物研究所机构知识库
Advanced  
IHB OpenIR  > 水环境工程研究中心  > 期刊论文
题名: Responses and toxin bioaccumulation in duckweed (Lemna minor) under microcystin-LR, linear alkybenzene sulfonate and their joint stress
作者: Wang, Zhi1, 2; Xiao, Bangding1; Song, Lirong1; Wang, Chunbo1; Zhang, Junqian1, 2
通讯作者: Xiao, BD (reprint author), Chinese Acad Sci, Inst Hydrobiol, 7th Donghu S Rd, Wuhan 430072, Hubei, Peoples R China.
关键词: Microcystins ; Linear alkylbenzene sulfonate ; Accumulation ; Superoxide dismutase ; Aquatic plants
刊名: JOURNAL OF HAZARDOUS MATERIALS
发表日期: 2012-08-30
DOI: 10.1016/j.jhazmat.2012.05.109
卷: 229, 期:-, 页:137-144
收录类别: SCI
文章类型: Article
部门归属: [Wang, Zhi; Xiao, Bangding; Song, Lirong; Wang, Chunbo; Zhang, Junqian] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China; [Wang, Zhi; Zhang, Junqian] Jiangsu Acad Agr Sci, Inst Agr Resource & Environm Sci, Nanjing 210014, Peoples R China
WOS标题词: Science & Technology ; Technology ; Life Sciences & Biomedicine
资助者: Science Foundation of NSFC-Yunnan Province [U0833604]; National Key Project for Basic Research [2008CB418101]; Special Program for Water Pollution Control in China [2012ZX07102-005]
类目[WOS]: Engineering, Environmental ; Engineering, Civil ; Environmental Sciences
研究领域[WOS]: Engineering ; Environmental Sciences & Ecology
摘要: Microcystin-LR (MCLR) and linear alkylbenzene sulfonate (LAS) are commonly found in eutrophic lakes due to toxic cyanobacterial blooms and exogenous organic compounds pollution. However, the ecotoxicological risk of their combination in the aquatic environment is unknown. This study investigated the effects of MCLR. LAS and their mixture on duckweed (Lemna minor) growth and physiological responses. MCLR accumulation in duckweed, with or without LAS, was also examined. Growth of duckweed and chlorophyll-a contents were significantly reduced after 8d exposure to high concentrations of MCLR (>= 3 mu g/ml), LAS (>= 20 mu g/ml) and their mixture (>= 3 + 10 mu g/ml). After 2 d of exposure, superoxide dismutase activity and glutathione content in duckweed increased with increasing concentrations of MCLR, LAS and their mixture, with a significant difference observable after 8 d of exposure. When MCLR and LAS concentrations were lower (<= 0.1 + 1 mu g/ml), the interaction of them is synergistic, but when the concentrations were higher, the synergy was weak. MC accumulation was much higher at 2 d than at 8 d when duckweed was exposed to lower concentrations of MCLR (<= 3 mu g/ml) or MCLR-LAS (<= 3 + 10 mu g/ml). Furthermore. LAS significantly enhanced the accumulation of MCLR in duckweed, even with LAS concentrations as low as 0.3 mu g/ml (environmental concentration), indicating that greater negative ecological risks and higher MCLR phytoremediation potentials of duckweed might occur in MCLR-LAS-concomitant water. (C) 2012 Elsevier B.V. All rights reserved.
英文摘要: Microcystin-LR (MCLR) and linear alkylbenzene sulfonate (LAS) are commonly found in eutrophic lakes due to toxic cyanobacterial blooms and exogenous organic compounds pollution. However, the ecotoxicological risk of their combination in the aquatic environment is unknown. This study investigated the effects of MCLR. LAS and their mixture on duckweed (Lemna minor) growth and physiological responses. MCLR accumulation in duckweed, with or without LAS, was also examined. Growth of duckweed and chlorophyll-a contents were significantly reduced after 8d exposure to high concentrations of MCLR (>= 3 mu g/ml), LAS (>= 20 mu g/ml) and their mixture (>= 3 + 10 mu g/ml). After 2 d of exposure, superoxide dismutase activity and glutathione content in duckweed increased with increasing concentrations of MCLR, LAS and their mixture, with a significant difference observable after 8 d of exposure. When MCLR and LAS concentrations were lower (<= 0.1 + 1 mu g/ml), the interaction of them is synergistic, but when the concentrations were higher, the synergy was weak. MC accumulation was much higher at 2 d than at 8 d when duckweed was exposed to lower concentrations of MCLR (<= 3 mu g/ml) or MCLR-LAS (<= 3 + 10 mu g/ml). Furthermore. LAS significantly enhanced the accumulation of MCLR in duckweed, even with LAS concentrations as low as 0.3 mu g/ml (environmental concentration), indicating that greater negative ecological risks and higher MCLR phytoremediation potentials of duckweed might occur in MCLR-LAS-concomitant water. (C) 2012 Elsevier B.V. All rights reserved.
关键词[WOS]: RAPE BRASSICA-NAPUS ; RICE ORYZA-SATIVA ; ALKYLBENZENE SULFONATE ; CYANOBACTERIAL TOXIN ; RISK-ASSESSMENT ; OXIDATIVE STRESS ; SUPEROXIDE-DISMUTASE ; AQUATIC MACROPHYTES ; MASS-SPECTROMETRY ; CRUDE EXTRACT
语种: 英语
WOS记录号: WOS:000307130800018
ISSN号: 0304-3894
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/17260
Appears in Collections:水环境工程研究中心_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
Responses and toxin bioaccumulation in duckweed (Lemna minor) under microcystin-LR, linear alkybenzene sulfonate and their .pdf(989KB)----开放获取--View Download

作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China
2.Jiangsu Acad Agr Sci, Inst Agr Resource & Environm Sci, Nanjing 210014, Peoples R China

Recommended Citation:
Wang, Zhi; Xiao, Bangding; Song, Lirong; Wang, Chunbo; Zhang, Junqian.Responses and toxin bioaccumulation in duckweed (Lemna minor) under microcystin-LR, linear alkybenzene sulfonate and their joint stress,JOURNAL OF HAZARDOUS MATERIALS,2012,229():137-144
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Wang, Zhi]'s Articles
[Xiao, Bangding]'s Articles
[Song, Lirong]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Wang, Zhi]‘s Articles
[Xiao, Bangding]‘s Articles
[Song, Lirong]‘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
文件名: Responses and toxin bioaccumulation in duckweed (Lemna minor) under microcystin-LR, linear alkybenzene sulfonate and their .pdf
格式: Adobe PDF
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 © 2007-2017  中国科学院水生生物研究所 - Feedback
Powered by CSpace