IHB OpenIR  > 期刊论文
Contributions of phosphatase and microbial activity to internal phosphorus loading and their relation to lake eutrophication
Song Chunlei; Cao Xiuyun; Li Jianqiu; Li Qingman; Chen Guoyuan; Zhou Yiyong; Zhou, YY, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2006-04-01
Source PublicationSCIENCE IN CHINA SERIES D-EARTH SCIENCES
ISSN1006-9313
Volume49Pages:102-113
AbstractPhosphatase may accelerate the process of lake eutrophication through improving phosphorus bioavailability. This mechanism was studied in three Chinese eutrophic shallow lakes (Lake Taihu, Lake Longyang,and Lake Lianhua). Phosphatase activity was related to the concentration of soluble reactive phosphorus (SRP) and chlorophyll a. Stability of dissolved phosphatase in reverse micelles may be attributed to molecular size, conformation and active residues of the enzyme. At the site with Microcystis bloomed in Lake Taihu, dissolved phosphatase activity was higher and more stable in micelles, SRP concentrations were lower in interstitial water, the contents of different forms of phosphorus and the amounts of aerobic bacteria were lower while respiration efficiency was higher in sediments. Phosphobacteria, both inorganic and organic and other microorganisms were abundant in surface water but rare in sediments. Therefore, internal phosphorus may substantially flux into water column by enzymatic hydrolysis and anaerobic release, together with mobility of bacteria, thereby initiating the bloom. In short, biological mechanism may act in concert with physical and chemical factors to drive the internal phosphorus release and accelerate lake eutrophication.; Phosphatase may accelerate the process of lake eutrophication through improving phosphorus bioavailability. This mechanism was studied in three Chinese eutrophic shallow lakes (Lake Taihu, Lake Longyang,and Lake Lianhua). Phosphatase activity was related to the concentration of soluble reactive phosphorus (SRP) and chlorophyll a. Stability of dissolved phosphatase in reverse micelles may be attributed to molecular size, conformation and active residues of the enzyme. At the site with Microcystis bloomed in Lake Taihu, dissolved phosphatase activity was higher and more stable in micelles, SRP concentrations were lower in interstitial water, the contents of different forms of phosphorus and the amounts of aerobic bacteria were lower while respiration efficiency was higher in sediments. Phosphobacteria, both inorganic and organic and other microorganisms were abundant in surface water but rare in sediments. Therefore, internal phosphorus may substantially flux into water column by enzymatic hydrolysis and anaerobic release, together with mobility of bacteria, thereby initiating the bloom. In short, biological mechanism may act in concert with physical and chemical factors to drive the internal phosphorus release and accelerate lake eutrophication.
SubtypeArticle
KeywordDissolved Phosphatase Reverse Micelle Internal Loading Phosphorus Form Of Sediment Microbiology Eutrophication Microcystis Bloom
DepartmentChinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Subject AreaGeosciences, Multidisciplinary
DOI10.1007/s11430-006-8110-z
WOS HeadingsScience & Technology ; Physical Sciences
Indexed BySCI
Language英语
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000238958400010
WOS KeywordALKALINE-PHOSPHATASE ; REVERSE MICELLES ; SIZE-FRACTIONATION ; ORGANIC-SOLVENTS ; P-RELEASE ; WATER ; SEDIMENTS ; ENZYMES ; PHYTOPLANKTON ; AVAILABILITY
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/8916
Collection期刊论文
Corresponding AuthorZhou, YY, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
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
Song Chunlei,Cao Xiuyun,Li Jianqiu,et al. Contributions of phosphatase and microbial activity to internal phosphorus loading and their relation to lake eutrophication[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2006,49:102-113.
APA Song Chunlei.,Cao Xiuyun.,Li Jianqiu.,Li Qingman.,Chen Guoyuan.,...&Zhou, YY, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.(2006).Contributions of phosphatase and microbial activity to internal phosphorus loading and their relation to lake eutrophication.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,49,102-113.
MLA Song Chunlei,et al."Contributions of phosphatase and microbial activity to internal phosphorus loading and their relation to lake eutrophication".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 49(2006):102-113.
Files in This Item:
File Name/Size DocType Version Access License
Contributions of pho(1820KB) 开放获取--View Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Song Chunlei]'s Articles
[Cao Xiuyun]'s Articles
[Li Jianqiu]'s Articles
Baidu academic
Similar articles in Baidu academic
[Song Chunlei]'s Articles
[Cao Xiuyun]'s Articles
[Li Jianqiu]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Song Chunlei]'s Articles
[Cao Xiuyun]'s Articles
[Li Jianqiu]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Contributions of phosphatase and microbial activity to internal phosphorus loading and their relation to lake eutrophication.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.