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题名: PHYSIOLOGICAL AND ULTRASTRUCTURAL RESPONSES OF MICROCYSTIS AERUGINOSA TO DIFFERENT PHOSPHORUS CONCENTRATIONS
作者: Tan, Xiang1, 2, 5; Ma, Peiming3, 4; Song, Lirong1; Zhang, Quanfa2
通讯作者: Song, LR (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 43007, Peoples R China.
关键词: Alkaline phosphatase activity ; Microcystis aeruginosa ; Inorganic phosphorus ; Oxygen evolution activity ; Polyphosphate bodies
刊名: FRESENIUS ENVIRONMENTAL BULLETIN
发表日期: 2012
卷: 21, 期:4, 页:838-843
收录类别: SCI
文章类型: Article
部门归属: [Tan, Xiang; Song, Lirong] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China; [Tan, Xiang; Zhang, Quanfa] Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Peoples R China; [Ma, Peiming] Chinese Acad Sci, Wuhan 430079, Peoples R China; [Ma, Peiming] Minist Water Resources, Inst Hydroecol, Wuhan 430079, Peoples R China; [Tan, Xiang] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: National Natural Science Foundation of China[31130010]; National Key Sciences Research Program of China[2008CB418000]
类目[WOS]: Environmental Sciences
研究领域[WOS]: Environmental Sciences & Ecology
摘要: Microcystis has become increasingly dominant during periods of algae bloom in freshwater environments where phosphorus (P) is usually the primary element limiting its propagation. In order to understand the mechanism of Microcystis dominance, the present study investigates the physiological, biochemical and ultrastructural responses of Microcystis aeruginosa (FACHB 469) to eight different inorganic phosphorus (Pi) concentrations under batch culture condition. The results showed that growth of M. aeruginosa was significantly restrained when Pi concentration was below 0.20 mg/L. Its alkaline phosphatase activity (APA) was induced under P deficiency stress and there was also a negative correlation between APA and external Pi concentration. Nevertheless, polyphosphate bodies (PP) were observed after M. aeruginosa, pre-cultured under Pi starvation, was exposed to higher Pi concentration. These results suggest that APA induction uptake and storage strategies of P might have ensured the dominance of M. aeruginosa in the freshwater environment with varying Pi concentrations.
英文摘要: Microcystis has become increasingly dominant during periods of algae bloom in freshwater environments where phosphorus (P) is usually the primary element limiting its propagation. In order to understand the mechanism of Microcystis dominance, the present study investigates the physiological, biochemical and ultrastructural responses of Microcystis aeruginosa (FACHB 469) to eight different inorganic phosphorus (Pi) concentrations under batch culture condition. The results showed that growth of M. aeruginosa was significantly restrained when Pi concentration was below 0.20 mg/L. Its alkaline phosphatase activity (APA) was induced under P deficiency stress and there was also a negative correlation between APA and external Pi concentration. Nevertheless, polyphosphate bodies (PP) were observed after M. aeruginosa, pre-cultured under Pi starvation, was exposed to higher Pi concentration. These results suggest that APA induction uptake and storage strategies of P might have ensured the dominance of M. aeruginosa in the freshwater environment with varying Pi concentrations.
关键词[WOS]: ALKALINE-PHOSPHATASE ACTIVITY ; SURPLUS PHOSPHORUS ; PHYTOPLANKTON ; LAKE ; ALGAE ; CYANOBACTERIA ; DEFICIENCY ; SUCCESSION ; LIMITATION ; NUTRIENTS
语种: 英语
WOS记录号: WOS:000303697800006
ISSN号: 1018-4619
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/17043
Appears in Collections:藻类生物学及应用研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Peoples R China
3.Chinese Acad Sci, Wuhan 430079, Peoples R China
4.Minist Water Resources, Inst Hydroecol, Wuhan 430079, Peoples R China
5.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China

Recommended Citation:
Tan, Xiang; Ma, Peiming; Song, Lirong; Zhang, Quanfa.PHYSIOLOGICAL AND ULTRASTRUCTURAL RESPONSES OF MICROCYSTIS AERUGINOSA TO DIFFERENT PHOSPHORUS CONCENTRATIONS,FRESENIUS ENVIRONMENTAL BULLETIN,2012,21(4):838-843
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文件名: PHYSIOLOGICAL AND ULTRASTRUCTURAL RESPONSES OF MICROCYSTIS AERUGINOSA TO DIFFERENT PHOSPHORUS CONCENTRATIONS.pdf
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