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Mechanism study on the frequent variations of cell-bound microcystins in cyanobacterial blooms in Lake Taihu: Implications for water quality monitoring and assessments
Chen, Wei1; Peng, Liang1,2; Wan, Neng1,2; Song, Lirong1; Song, LR, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2009-12-01
Source PublicationCHEMOSPHERE
ISSN0045-6535
Volume77Issue:11Pages:1585-1593
AbstractAlthough Microcystis-based toxins have been intensively studied, previous studies using laboratory cultures of Microcystis strains are difficult to explain the phenomenon that microcystin concentrations and toxin variants in natural blooms differ widely and frequently within a short-term period. The present study was designed to unravel the mechanisms for the frequent variations of intracellular toxins related to the differences in cyanobacterial colonies during bloom seasons in Lake Taihu, China. Monitoring of Microcystis colonies during warm seasons indicated that the variations in microcystins in both concentrations and toxin species were associated with the frequent alteration of Microcystis colonies in Lake Taihu. High concentration of microcystins in the blooms was always associated with two Microcystis colonies, Microcystis flos-aquae and Microcystis aeruginosa, whereas when Microcystis wesenbergii was the dominant colonial type, the toxin production of the blooms was low. Additionally, environmental factors such as temperature and nutrition were also shown to have an effect on the toxin production of the blooms, and may also potentially influence the Microcystis species present. The results of the present study provides insight into a new consideration for quick water quality monitoring, assessment and risk alert in cyanobacterium- and toxin-contaminated freshwaters, which will be beneficial not only for water agencies but also for public health. (C) 2009 Elsevier Ltd. All rights reserved.; Although Microcystis-based toxins have been intensively studied, previous studies using laboratory cultures of Microcystis strains are difficult to explain the phenomenon that microcystin concentrations and toxin variants in natural blooms differ widely and frequently within a short-term period. The present study was designed to unravel the mechanisms for the frequent variations of intracellular toxins related to the differences in cyanobacterial colonies during bloom seasons in Lake Taihu, China. Monitoring of Microcystis colonies during warm seasons indicated that the variations in microcystins in both concentrations and toxin species were associated with the frequent alteration of Microcystis colonies in Lake Taihu. High concentration of microcystins in the blooms was always associated with two Microcystis colonies, Microcystis flos-aquae and Microcystis aeruginosa, whereas when Microcystis wesenbergii was the dominant colonial type, the toxin production of the blooms was low. Additionally, environmental factors such as temperature and nutrition were also shown to have an effect on the toxin production of the blooms, and may also potentially influence the Microcystis species present. The results of the present study provides insight into a new consideration for quick water quality monitoring, assessment and risk alert in cyanobacterium- and toxin-contaminated freshwaters, which will be beneficial not only for water agencies but also for public health. (C) 2009 Elsevier Ltd. All rights reserved.
SubtypeArticle
KeywordMicrocystis Colonies Microcystins Cyanobacterial Blooms Variation Physical-chemical Parameters
Department[Chen, Wei; Peng, Liang; Wan, Neng; Song, Lirong] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China; [Peng, Liang; Wan, Neng] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
Subject AreaEnvironmental Sciences
DOI10.1016/j.chemosphere.2009.09.037
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Funding OrganizationNational Basic Research Program of China [2008CB418006]; Chinese Academy of Sciences [KZCXI-YW-14-1]; Natural Science Foundation of Hubei Province of China [2007ABA297] ; National Basic Research Program of China [2008CB418006]; Chinese Academy of Sciences [KZCXI-YW-14-1]; Natural Science Foundation of Hubei Province of China [2007ABA297] ; National Basic Research Program of China [2008CB418006]; Chinese Academy of Sciences [KZCXI-YW-14-1]; Natural Science Foundation of Hubei Province of China [2007ABA297] ; National Basic Research Program of China [2008CB418006]; Chinese Academy of Sciences [KZCXI-YW-14-1]; Natural Science Foundation of Hubei Province of China [2007ABA297]
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000272598700018
WOS KeywordBLUE-GREEN-ALGAE ; HEPATOTOXIN PRODUCTION ; TOXIN PRODUCTION ; AERUGINOSA ; GROWTH ; STRAINS ; DRINKING ; CULTURE ; LIGHT ; TEMPERATURE
Funding OrganizationNational Basic Research Program of China [2008CB418006]; Chinese Academy of Sciences [KZCXI-YW-14-1]; Natural Science Foundation of Hubei Province of China [2007ABA297] ; National Basic Research Program of China [2008CB418006]; Chinese Academy of Sciences [KZCXI-YW-14-1]; Natural Science Foundation of Hubei Province of China [2007ABA297] ; National Basic Research Program of China [2008CB418006]; Chinese Academy of Sciences [KZCXI-YW-14-1]; Natural Science Foundation of Hubei Province of China [2007ABA297] ; National Basic Research Program of China [2008CB418006]; Chinese Academy of Sciences [KZCXI-YW-14-1]; Natural Science Foundation of Hubei Province of China [2007ABA297]
Citation statistics
Cited Times:36[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/7462
Collection期刊论文
Corresponding AuthorSong, LR, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Chen, Wei,Peng, Liang,Wan, Neng,et al. Mechanism study on the frequent variations of cell-bound microcystins in cyanobacterial blooms in Lake Taihu: Implications for water quality monitoring and assessments[J]. CHEMOSPHERE,2009,77(11):1585-1593.
APA Chen, Wei,Peng, Liang,Wan, Neng,Song, Lirong,&Song, LR, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.(2009).Mechanism study on the frequent variations of cell-bound microcystins in cyanobacterial blooms in Lake Taihu: Implications for water quality monitoring and assessments.CHEMOSPHERE,77(11),1585-1593.
MLA Chen, Wei,et al."Mechanism study on the frequent variations of cell-bound microcystins in cyanobacterial blooms in Lake Taihu: Implications for water quality monitoring and assessments".CHEMOSPHERE 77.11(2009):1585-1593.
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