IHB OpenIR
Variations in kinetics of alkaline phosphatase in sediments of eutrophic, shallow, Chinese lakes
Zhou, Yiyong; Cao, Xiuyun; Song, Chunlei; Li, Jianqiu; Chen, Guoyuan; Peng, Liang
2007-05-01
Source PublicationHYDROBIOLOGIA
ISSN0018-8158
Volume581Pages:109-116
AbstractKinetics of alkaline phosphatase in sediments of a shallow Chinese freshwater lake (Lake Donghu) were investigated. Spatially, among 20 sites sampled, V-max and K-m values of alkaline phosphatase in surface sediments were higher in the zone adjacent to sites with the highest chlorophyll a concentrations. Vertically, there was a peak in V-max at intermediate sediment depths in addition to the expected maximum at the surface. Some inhibitors, such as CuSO4, ZnSO4 and Na2WO4, showed significantly different effects on kinetics of alkaline phosphatase in interstitial water and sediments. Moreover, alkaline phosphatase in interstitial water and sediments responded to Na2WO4 in different ways in Lake Taihu. These observations imply that the enzyme is immobilized in sediments, which became more stable with accelerated eutrophication, as suggested by highest alkaline phosphatase activity (APA) in sediments corresponding with highest water column chlorophyll a concentrations in Lake Donghu.
SubtypeArticle
KeywordAlkaline Phosphatase Kinetics Sediment Eutrophication Inhibitions Immobilization
DOI10.1007/s10750-006-0503-7
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed ByISTP ; SCI
Language英语
WOS Research AreaMarine & Freshwater Biology
WOS SubjectMarine & Freshwater Biology
WOS KeywordIMMOBILIZED ACID-PHOSPHATASE ; PHOSPHORUS AVAILABILITY ; ENZYME-ACTIVITIES ; VENICE LAGOON ; ZINC ; INHIBITION ; GRADIENT ; DONGHU ; WATER
WOS IDWOS:000244992800012
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/27238
Collection中科院水生所知识产出(2009年前)
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Zhou, Yiyong,Cao, Xiuyun,Song, Chunlei,et al. Variations in kinetics of alkaline phosphatase in sediments of eutrophic, shallow, Chinese lakes[J]. HYDROBIOLOGIA,2007,581:109-116.
APA Zhou, Yiyong,Cao, Xiuyun,Song, Chunlei,Li, Jianqiu,Chen, Guoyuan,&Peng, Liang.(2007).Variations in kinetics of alkaline phosphatase in sediments of eutrophic, shallow, Chinese lakes.HYDROBIOLOGIA,581,109-116.
MLA Zhou, Yiyong,et al."Variations in kinetics of alkaline phosphatase in sediments of eutrophic, shallow, Chinese lakes".HYDROBIOLOGIA 581(2007):109-116.
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