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学科主题: Environmental Sciences; Meteorology & Atmospheric Sciences; Water Resources
题名: Discharges and sediments as sources of extracellular alkaline phosphatase in a shallow Chinese eutrophic lake
作者: Zhou, YY; Li, JQ; Song, CL; Cao, XY
通讯作者: Zhou, YY, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
关键词: alkaline phosphatase activity ; eutrophication ; municipal wastewater ; resuspension of enzyme ; sediment ; soluble reactive phosphorus
刊名: WATER AIR AND SOIL POLLUTION
发表日期: 2004-11-01
卷: 159, 期:1-4, 页:395-407
收录类别: SCI
文章类型: Article
部门归属: Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
类目[WOS]: Environmental Sciences ; Meteorology & Atmospheric Sciences ; Water Resources
研究领域[WOS]: Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences ; Water Resources
摘要: Total alkaline phosphatase activity (APA) and soluble reactive phosphorus (SRP) concentrations were measured in municipal wastewater, and a shallow Chinese freshwater lake receiving it. Activities of Dissolved alkaline phosphatase ( ADAP) in overlying and interstitial water were also analyzed monthly at three sites for several years. The lake was enriched with SRP and alkaline phosphatase by discharge of the wastewater, indicating that the inclusion of APA for estimating water pollution was reasonable. Annual data showed that APA in coarser fraction was significantly higher at the site receiving more wastewaters, both in surface and overlying water, suggesting that resuspension of enzyme most likely occurred in the basin heavily discharged. ADAP was an order of magnitude higher in the wastewater than those in lake waters, and was generally higher in interstitial water, a feature more striking at the site receiving more discharges. Besides, it was irrespectively inhibited by Na2WO4, L-cysteine and EDTA-Na, but stimulated by Cu2+, Zn2+, CTAB and Triton X-100 in interstitial, overlying and surface waters. This similarity of responding patterns to the stressors indicated an analogy between dissolved alkaline phosphatase in water column and that in interstitial water, supporting the hypothesis that the polluted sediments act as source of dissolved alkaline phosphatase in eutrophic lakes.
英文摘要: Total alkaline phosphatase activity (APA) and soluble reactive phosphorus (SRP) concentrations were measured in municipal wastewater, and a shallow Chinese freshwater lake receiving it. Activities of Dissolved alkaline phosphatase ( ADAP) in overlying and interstitial water were also analyzed monthly at three sites for several years. The lake was enriched with SRP and alkaline phosphatase by discharge of the wastewater, indicating that the inclusion of APA for estimating water pollution was reasonable. Annual data showed that APA in coarser fraction was significantly higher at the site receiving more wastewaters, both in surface and overlying water, suggesting that resuspension of enzyme most likely occurred in the basin heavily discharged. ADAP was an order of magnitude higher in the wastewater than those in lake waters, and was generally higher in interstitial water, a feature more striking at the site receiving more discharges. Besides, it was irrespectively inhibited by Na2WO4, L-cysteine and EDTA-Na, but stimulated by Cu2+, Zn2+, CTAB and Triton X-100 in interstitial, overlying and surface waters. This similarity of responding patterns to the stressors indicated an analogy between dissolved alkaline phosphatase in water column and that in interstitial water, supporting the hypothesis that the polluted sediments act as source of dissolved alkaline phosphatase in eutrophic lakes.
关键词[WOS]: NUTRIENT REGENERATION ; ENZYME-ACTIVITY ; PHOSPHORUS ; MATTER
语种: 英语
WOS记录号: WOS:000225300500026
ISSN号: 0049-6979
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/9382
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China

Recommended Citation:
ZHOU YIYONG; LI JIANQIU; SONG CHUNLEI and CAO XIUYUN.Discharges and sediments as sources of extracellular alkaline phosphatase in a shallow Chinese eutrophic lake,WATER AIR AND SOIL POLLUTION,2004,159(1-4):395-407
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