| Discharges and sediments as sources of extracellular alkaline phosphatase in a shallow Chinese eutrophic lake | |
| Zhou, YY; Li, JQ; Song, CL; Cao, XY; Zhou, YY, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China | |
| 2004-11-01 | |
| Source Publication | WATER AIR AND SOIL POLLUTION
 |
| ISSN | 0049-6979 |
| Volume | 159Issue:1-4Pages:395-407 |
| Abstract | 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.; 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. |
| Subtype | Article |
| Keyword | Alkaline Phosphatase Activity Eutrophication Municipal Wastewater Resuspension Of Enzyme Sediment Soluble Reactive Phosphorus |
| Department | Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China |
| Subject Area | Environmental Sciences ; Meteorology & Atmospheric Sciences ; Water Resources |
| WOS Headings | Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences ; Water Resources |
| WOS Subject | Environmental Sciences ; Meteorology & Atmospheric Sciences ; Water Resources |
| WOS ID | WOS:000225300500026 |
| WOS Keyword | NUTRIENT REGENERATION ; ENZYME-ACTIVITY ; PHOSPHORUS ; MATTER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ihb.ac.cn/handle/152342/9382 |
| Collection | 期刊论文 |
| Corresponding Author | Zhou, YY, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China |
| Affiliation | Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China |
| Recommended Citation GB/T 7714 | Zhou, YY,Li, JQ,Song, CL,et al. Discharges and sediments as sources of extracellular alkaline phosphatase in a shallow Chinese eutrophic lake[J]. WATER AIR AND SOIL POLLUTION,2004,159(1-4):395-407. |
| APA | Zhou, YY,Li, JQ,Song, CL,Cao, XY,&Zhou, YY, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.(2004).Discharges and sediments as sources of extracellular alkaline phosphatase in a shallow Chinese eutrophic lake.WATER AIR AND SOIL POLLUTION,159(1-4),395-407. |
| MLA | Zhou, YY,et al."Discharges and sediments as sources of extracellular alkaline phosphatase in a shallow Chinese eutrophic lake".WATER AIR AND SOIL POLLUTION 159.1-4(2004):395-407. |
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