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题名: Effects of linear alkylbenzene sulfonate on the growth and toxin production of Microcystis aeruginosa isolated from Lake Dianchi
作者: Wang, Zhi1; Zhang, Junqian2; Song, Lirong2; Li, Enhua1; Wang, Xuelei1; Xiao, Bangding2
通讯作者: Li, EH (reprint author), Chinese Acad Sci, Key Lab Environm & Disaster Monitoring & Evaluat, Inst Geodesy & Geophys, Wuhan 430077, Peoples R China.
关键词: Linear alkylbenzene sulfonate ; Cyanobacteria ; Growth ; Microcystins ; Photosystem
刊名: ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
发表日期: 2015-04-01
DOI: 10.1007/s11356-014-3784-9
卷: 22, 期:7, 页:5491-5499
收录类别: SCI
文章类型: Article
部门归属: [Wang, Zhi ; Li, Enhua ; Wang, Xuelei] Chinese Acad Sci, Key Lab Environm & Disaster Monitoring & Evaluat, Inst Geodesy & Geophys, Wuhan 430077, Peoples R China ; [Zhang, Junqian ; Song, Lirong ; Xiao, Bangding] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Environmental Sciences
研究领域[WOS]: Environmental Sciences & Ecology
英文摘要: The exogenous organic pollutant linear alkylbenzene sulfonate (LAS) pollution and Microcystis bloom are two common phenomena in eutrophic lakes, but the effects of LAS alone on Microcystis remain unclear. In the present study, we investigated the effects of LAS on the growth, photochemical efficiency, and microcystin production of Microcystis aeruginosa in the laboratory. Results showed that low LAS (<= 10 mg/L) concentrations improved the growth of M. aeruginosa (12 days of exposure). High LAS (20 mg/L) concentrations inhibited the growth of M. aeruginosa on the first 8 days of exposure; afterward, growth progressed. After 12 days of exposure, the concentrations of chlorophyll a in algal cells were not significantly affected by any of LAS concentrations (0.05 to 20 mg/L) in the present study; by contrast, carotenoid and protein concentrations were significantly inhibited when LAS concentrations reached as high as 20 mg/L. After 6 and 12 days of exposure, low LAS (<= 10 mg/ L) concentrations enhanced the maximal photochemical efficiency (Fv/Fm) and the maximal electron transport rate (ETRmax) of M. aeruginosa. Furthermore, LAS increased the microcystin production of M. aeruginosa. Extracellular and intracellular microcystin contents were significantly increased after M. aeruginosa was exposed to high LAS concentrations. Our results indicated that LAS in eutrophic lakes may increase the risk of Microcystis bloom and microcystin production.
关键词[WOS]: PHOTOSYSTEM-II ; PUBLIC-HEALTH ; SURFACTANTS ; LAS ; ALGAE ; WATER ; LR ; CYANOBACTERIUM ; PHOTOSYNTHESIS ; FLUORESCENCE
语种: 英语
WOS记录号: WOS:000351586500064
ISSN号: 0944-1344
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/23960
Appears in Collections:水环境工程研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Key Lab Environm & Disaster Monitoring & Evaluat, Inst Geodesy & Geophys, Wuhan 430077, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
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