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Vertical variation in dissolved alkaline phosphatase activity in a shallow eutrophic lake determined in reverse micelles
Song, CL; Cao, XY; Li, JQ; Li, QM; Zhou, YY; Zhou, YY, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2005-12-01
Source PublicationJOURNAL OF FRESHWATER ECOLOGY
ISSN0270-5060
Volume20Issue:4Pages:627-634
AbstractWe evaluated the feasibility of microencapsulating dissolved alkaline phosphatase of a water body into reverse micelle systems prepared by hexadecyltrimethylammonium bromide as a surfactant in cyclohexane and 1-butanol as co-surfactant. The dissolved alkaline phosphatase activity within the micelle was described, including its kinetic parameters and the effects of pH and temperature on catalytic activity in surface, overlying and interstitial water of Lake Donghu. We found the similarities on the behavior of dissolved alkaline phosphatase of surface and interstitial water in reverse micelles, which was distinctly different from its behavior in the overlying water. This difference likely reflected the different origins of the dissolved alkaline phosphatase in the vertical profile of the lake. This system provides a novel tool with which to study the diversity and ecological significance of extracellular enzymes in aquatic environments.; We evaluated the feasibility of microencapsulating dissolved alkaline phosphatase of a water body into reverse micelle systems prepared by hexadecyltrimethylammonium bromide as a surfactant in cyclohexane and 1-butanol as co-surfactant. The dissolved alkaline phosphatase activity within the micelle was described, including its kinetic parameters and the effects of pH and temperature on catalytic activity in surface, overlying and interstitial water of Lake Donghu. We found the similarities on the behavior of dissolved alkaline phosphatase of surface and interstitial water in reverse micelles, which was distinctly different from its behavior in the overlying water. This difference likely reflected the different origins of the dissolved alkaline phosphatase in the vertical profile of the lake. This system provides a novel tool with which to study the diversity and ecological significance of extracellular enzymes in aquatic environments.
SubtypeArticle
KeywordProfiles Phosphorus Enzymes Waters Ocean
DepartmentChinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
Subject AreaEcology ; Limnology
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology ; Marine & Freshwater Biology
WOS SubjectEcology ; Limnology
WOS IDWOS:000233141200002
WOS KeywordPROFILES ; PHOSPHORUS ; ENZYMES ; WATERS ; OCEAN
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/9102
Collection期刊论文
Corresponding AuthorZhou, YY, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
AffiliationChinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Song, CL,Cao, XY,Li, JQ,et al. Vertical variation in dissolved alkaline phosphatase activity in a shallow eutrophic lake determined in reverse micelles[J]. JOURNAL OF FRESHWATER ECOLOGY,2005,20(4):627-634.
APA Song, CL,Cao, XY,Li, JQ,Li, QM,Zhou, YY,&Zhou, YY, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.(2005).Vertical variation in dissolved alkaline phosphatase activity in a shallow eutrophic lake determined in reverse micelles.JOURNAL OF FRESHWATER ECOLOGY,20(4),627-634.
MLA Song, CL,et al."Vertical variation in dissolved alkaline phosphatase activity in a shallow eutrophic lake determined in reverse micelles".JOURNAL OF FRESHWATER ECOLOGY 20.4(2005):627-634.
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