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学科主题: Science & Technology - Other Topics
题名: Effects of inorganic arsenic on growth and microcystin production of a Microcystis strain isolated from an algal bloom in Dianchi Lake, China
作者: Gong Yan ; Ao HongYi ; Liu BiBo ; Wen Sheng ; Wang Zhi ; Hu DingJing ; Zhang XingZhong ; Song LiRong ; Liu JianTong
通讯作者: Liu JianTong,Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China ; jtliu@ihb.ac.cn
关键词: inorganic arsenic ; cyanobacteria ; Microcystis aeruginosa ; microcystin
刊名: CHINESE SCIENCE BULLETIN
发表日期: 2011
卷: 56, 期:22, 页:2337-2342
收录类别: SCI
部门归属: [Ao, HY; Song, LR; Liu, JT] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Gong, Y; Hu, DJ; Zhang, XZ] Hubei Acad Agr Sci, Inst Agr Qual Stand & Testing Technol, Wuhan 430064, Peoples R China; [Liu, BB] Henan Inst Engn, Dept Resourses & Environm Engn, Zhengzhou 451191, Peoples R China; [Wen, S] Chinese Ctr Dis Control & Prevent, Natl Inst Nutr & Food Safety, Beijing 100050, Peoples R China; [Wang, Z] Jiangsu Acad Agr Sci, Inst Agr Resource & Environm Sci, Nanjing 210014, Peoples R China
资助者: State Key Laboratory of Freshwater Ecology and Biotechnology[2009FBZ09]; National Major Science and Technology Program of China[2009ZX07104-005-03]; Hubei Key Laboratory of Crop Diseases, Insect Pests and Weeds Control[2011CDIWC-1-1]
摘要: Our previous data have shown that inorganic arsenic concentrations were high in Dianchi Lake, China, where Microcystis blooms often occur. To explore the relationship between arsenic and the growth of Microcystis, the effects of arsenite [As(III)] and arsenate [As(V)] on the growth and toxin production of M. aeruginosa strain FACHB 905 were tested. Results showed that M. aeruginosa FACHB 905 was tolerant to inorganic arsenic and its growth was not inhibited when the concentration of As(III) was below 10(-5) mol L(-1) or that of As(V) below 10(-3) mol L(-1). Total microcystin production was stimulated in the presence of 10(-7) mol L(-1) As(III) and the response of this M. aeruginosa strain to As(III) seemed to be a typical inverted U-shaped hormesis. The content increase of microcystin-LR per cell indicated that the toxicity was enhanced as M. aeruginosa FACHB 905 was exposed to As(V). Considering the relatively high concentration of inorganic arsenic in Dianchi Lake (139 mu g L(-1) in epilimnetic water), the origin of the M. aeruginosa strain, inorganic arsenic favors survival of M. aeruginosa FACHB 905 and may stimulate its microcystin production and cellular toxicity.
语种: 英语
WOS记录号: WOS:000292652600007
ISSN号: 1001-6538
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/16333
Appears in Collections:水环境工程研究中心_期刊论文

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Recommended Citation:
Gong Yan; Ao HongYi; Liu BiBo; Wen Sheng; Wang Zhi; Hu DingJing; Zhang XingZhong; Song LiRong; Liu JianTong.Effects of inorganic arsenic on growth and microcystin production of a Microcystis strain isolated from an algal bloom in Dianchi Lake, China,CHINESE SCIENCE BULLETIN,2011,56(22):2337-2342
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