Mechanism study on the frequent variations of cell-bound microcystins in cyanobacterial blooms in Lake Taihu: Implications for water quality monitoring and assessments
文献类型：期刊论文
| 作者 | Chen, Wei1; Peng, Liang1,2; Wan, Neng1,2; Song, Lirong1 |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2009-12-01 |
| 卷号 | 77期号:11页码:1585-1593 |
| ISSN号 | 0045-6535 |
| 关键词 | Microcystis colonies Microcystins Cyanobacterial blooms Variation Physical-chemical parameters |
| 通讯作者 | Song, LR, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China |
| 中文摘要 | 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. |
| 英文摘要 | 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. |
| 学科主题 | Environmental Sciences |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Environmental Sciences |
| 研究领域[WOS] | Environmental Sciences & Ecology |
| 关键词[WOS] | BLUE-GREEN-ALGAE ; HEPATOTOXIN PRODUCTION ; TOXIN PRODUCTION ; AERUGINOSA ; GROWTH ; STRAINS ; DRINKING ; CULTURE ; LIGHT ; TEMPERATURE |
| 资助信息 | National Basic Research Program of China [2008CB418006]; Chinese Academy of Sciences [KZCXI-YW-14-1]; Natural Science Foundation of Hubei Province of China [2007ABA297] |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000272598700018 |
| 公开日期 | 2010-10-13 |
| 源URL | [http://ir.ihb.ac.cn/handle/152342/7462]  |
| 专题 | 水生生物研究所_中科院水生所知识产出（2009年前）_期刊论文 |
| 作者单位 | 1.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 |
| 推荐引用方式 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.(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. |
入库方式： OAI收割
来源：水生生物研究所
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