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题名: Effects of intermediate metabolite carboxylic acids of TCA cycle on Microcystis with overproduction of phycocyanin
作者: Bai, Shijie1, 2, 4, 5; Dai, Jingcheng1, 2, 3; Xia, Ming1, 2; Ruan, Jing1, 2; Wei, Hehong1, 2; Yu, Dianzhen1, 2; Li, Ronghui1, 2; Jing, Hongmei4, 5; Tian, Chunyuan3; Song, Lirong1, 2; Qiu, Dongru1, 2
通讯作者: Qiu, DR (reprint author), Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.
关键词: Microcystis blooms ; Carboxylic acids ; Phycocyanin ; High efficiency ; Environmental safety
刊名: ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
发表日期: 2015-04-01
DOI: 10.1007/s11356-014-3730-x
卷: 22, 期:7, 页:5531-5537
收录类别: SCI
文章类型: Article
部门归属: [Bai, Shijie ; Dai, Jingcheng ; Xia, Ming ; Ruan, Jing ; Wei, Hehong ; Yu, Dianzhen ; Li, Ronghui ; Song, Lirong ; Qiu, Dongru] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China ; [Bai, Shijie ; Dai, Jingcheng ; Xia, Ming ; Ruan, Jing ; Wei, Hehong ; Yu, Dianzhen ; Li, Ronghui ; Song, Lirong ; Qiu, Dongru] Univ Chinese Acad Sci, Wuhan 430072, Peoples R China ; [Dai, Jingcheng ; Tian, Chunyuan] Hubei Univ Engn, Sch Life Sci & Technol, Xiaogan 432000, Peoples R China ; [Bai, Shijie ; Jing, Hongmei] Chinese Acad Sci, Sanya Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China ; [Bai, Shijie ; Jing, Hongmei] Univ Chinese Acad Sci, Sanya 572000, 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: Toxic Microcystis species are the main bloom-forming cyanobacteria in freshwaters. It is imperative to develop efficient techniques to control these notorious harmful algal blooms (HABs). Here, we present a simple, efficient, and environmentally safe algicidal way to control Microcystis blooms, by using intermediate carboxylic acids from the tricarboxylic acid (TCA) cycle. The citric acid, alpha-ketoglutaric acid, succinic acid, fumaric acid, and malic acid all exhibited strong algicidal effects, and particularly succinic acid could cause the rapid lysis of Microcystis in a few hours. It is revealed that the Microcystis-lysing activity of succinic acid and other carboxylic acids was due to their strong acidic activity. Interestingly, the acid-lysed Microcystis cells released large amounts of phycocyanin, about 27-fold higher than those of the control. On the other hand, the transcription of mcyA and mcyD of the microcystin biosynthesis operon was not upregulated by addition of alpha-ketoglutaric acid and other carboxylic acids. Consider the environmental safety of intermediate carboxylic acids. We propose that administration of TCA cycle organic acids may not only provide an algicidal method with high efficiency and environmental safety but also serve as an applicable way to produce and extract phycocyanin from cyanobacterial biomass.
关键词[WOS]: C-PHYCOCYANIN ; SPIRULINA-PLATENSIS ; FRESH-WATER ; PURIFICATION ; MARINE ; BLOOMS ; AERUGINOSA ; BIOMASS ; NTCA ; CYANOBACTERIA
语种: 英语
WOS记录号: WOS:000351586500068
ISSN号: 0944-1344
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/23946
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, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Univ Chinese Acad Sci, Wuhan 430072, Peoples R China
3.Hubei Univ Engn, Sch Life Sci & Technol, Xiaogan 432000, Peoples R China
4.Chinese Acad Sci, Sanya Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China
5.Univ Chinese Acad Sci, Sanya 572000, Peoples R China
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