IHB OpenIR  > 期刊论文
FLUCTUATION OF SIZE-FRACTIONATED ALKALINE PHOSPHATASE AFTER BLOOM DISAPPEARANCE IN TWO SHALLOW PONDS
Song Chunlei; Cao Xiuyun; Zhou Yiyong; Cao, XY, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2009
Source PublicationFRESENIUS ENVIRONMENTAL BULLETIN
ISSN1018-4619
Volume18Issue:6Pages:982-988
AbstractThe temporal and vertical fluctuations of size fractionated alkaline phosphatase activity (APA) and kinetics parameters as well as orthophosphate (o-P) and chlorophyll concentrations were investigated after bloom disappearance in two shallow ponds A and B from 27 October 2001 to 15 April 2002. Pond A (Microcystis) bloomed seriously but pond B did not. The data of o-P and chlorophyll suggested that phosphorus was the principal limiting nutrimental element and its vertical flux should be regarded as an important driving factor for algal growth. In pond A, the accumulation of algae-derived detritus after bloom disappearance in overlying water stimulated excretion of algal fraction APA, mainly produced by attached bacteria responsible for detritus decomposition, whereas bacterial fraction APA preferred to function in surface water. Interestingly, completely contrary phenomena were observed in pond B. In season, even though no obvious difference for size-fractionated APA in both ponds, the total APA in pond A peaked earlier showing higher activity and efficiency (low K-m and high V-max values) as a result of algal-derived detritus input. In summary, it is suggested that the excretion of alkaline phosphatase with strongly catalyzing efficiency and high activity should be taken as important contributor to algal-derived detritus decomposition, further fueling nutrient recycle and accelerating algal development next year. Furthermore, some inhibitors and surfactants were testified to be good tools to identify the origin of dissolved alkaline phosphatase.; The temporal and vertical fluctuations of size fractionated alkaline phosphatase activity (APA) and kinetics parameters as well as orthophosphate (o-P) and chlorophyll concentrations were investigated after bloom disappearance in two shallow ponds A and B from 27 October 2001 to 15 April 2002. Pond A (Microcystis) bloomed seriously but pond B did not. The data of o-P and chlorophyll suggested that phosphorus was the principal limiting nutrimental element and its vertical flux should be regarded as an important driving factor for algal growth. In pond A, the accumulation of algae-derived detritus after bloom disappearance in overlying water stimulated excretion of algal fraction APA, mainly produced by attached bacteria responsible for detritus decomposition, whereas bacterial fraction APA preferred to function in surface water. Interestingly, completely contrary phenomena were observed in pond B. In season, even though no obvious difference for size-fractionated APA in both ponds, the total APA in pond A peaked earlier showing higher activity and efficiency (low K(m) and high V(max) values) as a result of algal-derived detritus input. In summary, it is suggested that the excretion of alkaline phosphatase with strongly catalyzing efficiency and high activity should be taken as important contributor to algal-derived detritus decomposition, further fueling nutrient recycle and accelerating algal development next year. Furthermore, some inhibitors and surfactants were testified to be good tools to identify the origin of dissolved alkaline phosphatase.
SubtypeArticle
KeywordSize-fractionated Alkaline Phosphatase Algal Derived Detritus Phosphorus Bloom
Department[Song Chunlei; Cao Xiuyun; Zhou Yiyong] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
Subject AreaEnvironmental Sciences
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Funding OrganizationChinese Academy of Sciences [KZCX2-YW426, KZCXI-YW-14-1]; National Science Foundation of China [40730528, 30600088]; State Key Laboratory of Freshwater Ecology and Biotechnology [20081713012] ; Chinese Academy of Sciences [KZCX2-YW426, KZCXI-YW-14-1]; National Science Foundation of China [40730528, 30600088]; State Key Laboratory of Freshwater Ecology and Biotechnology [20081713012] ; Chinese Academy of Sciences [KZCX2-YW426, KZCXI-YW-14-1]; National Science Foundation of China [40730528, 30600088]; State Key Laboratory of Freshwater Ecology and Biotechnology [20081713012] ; Chinese Academy of Sciences [KZCX2-YW426, KZCXI-YW-14-1]; National Science Foundation of China [40730528, 30600088]; State Key Laboratory of Freshwater Ecology and Biotechnology [20081713012]
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000267869500011
WOS KeywordEUTROPHIC LAKE ; PHOSPHORUS AVAILABILITY ; CYANOBACTERIAL BLOOM ; ORGANIC PHOSPHORUS ; HUMIC LAKE ; DETRITUS ; BACTERIA ; PHYTOPLANKTON ; DECOMPOSITION ; DYNAMICS
Funding OrganizationChinese Academy of Sciences [KZCX2-YW426, KZCXI-YW-14-1]; National Science Foundation of China [40730528, 30600088]; State Key Laboratory of Freshwater Ecology and Biotechnology [20081713012] ; Chinese Academy of Sciences [KZCX2-YW426, KZCXI-YW-14-1]; National Science Foundation of China [40730528, 30600088]; State Key Laboratory of Freshwater Ecology and Biotechnology [20081713012] ; Chinese Academy of Sciences [KZCX2-YW426, KZCXI-YW-14-1]; National Science Foundation of China [40730528, 30600088]; State Key Laboratory of Freshwater Ecology and Biotechnology [20081713012] ; Chinese Academy of Sciences [KZCX2-YW426, KZCXI-YW-14-1]; National Science Foundation of China [40730528, 30600088]; State Key Laboratory of Freshwater Ecology and Biotechnology [20081713012]
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Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/7658
Collection期刊论文
Corresponding AuthorCao, XY, 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 Chunlei,Cao Xiuyun,Zhou Yiyong,et al. FLUCTUATION OF SIZE-FRACTIONATED ALKALINE PHOSPHATASE AFTER BLOOM DISAPPEARANCE IN TWO SHALLOW PONDS[J]. FRESENIUS ENVIRONMENTAL BULLETIN,2009,18(6):982-988.
APA Song Chunlei,Cao Xiuyun,Zhou Yiyong,&Cao, XY, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.(2009).FLUCTUATION OF SIZE-FRACTIONATED ALKALINE PHOSPHATASE AFTER BLOOM DISAPPEARANCE IN TWO SHALLOW PONDS.FRESENIUS ENVIRONMENTAL BULLETIN,18(6),982-988.
MLA Song Chunlei,et al."FLUCTUATION OF SIZE-FRACTIONATED ALKALINE PHOSPHATASE AFTER BLOOM DISAPPEARANCE IN TWO SHALLOW PONDS".FRESENIUS ENVIRONMENTAL BULLETIN 18.6(2009):982-988.
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