Development of tolerance against toxic Microcystis aeruginosa in three cladocerans and the ecological implications
文献类型：期刊论文
| 作者 | Guo, Nichun; Xie, Ping |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2006-10-01 |
| 卷号 | 143期号:3页码:513-518 |
| 关键词 | cladoceran Microcystis aeruginosa PCC7820 microcystin tolerance development growth survival rate |
| ISSN号 | 0269-7491 |
| 通讯作者 | Xie, P, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biodivers China, Donghua Expt Stn Lake Ecosyst, Donghua S Rd 7, Wuhan 4300072, Peoples R China |
| 中文摘要 | This is the first experimental study to compare difference in the development of tolerance against toxic Microcystis among multi-species of cladocerans (Daphnia, Moina and Ceriodaphnia) pre-exposed to two M. aeruginosa PCC7820 strains (MC-containing and MC-free). Zooplankton were divided into S population (fed Scenedesmus), M-F population (fed Scenedesmus + MC-free Microcystis), and M-C population (fed Scenedesmus + MC-containing Microcystis). M-F and M-C populations were pre-exposed to Microcystis strains for 4 weeks, and their newborns were collected for experiments. A pre-exposure to MC-containing or MC-free Microcystis increased tolerance against toxic Microcystis. The marked increases in survival rate and median lethal time (LT50, 100-194% increase) in the M-C population of Ceriodaphnia suggest that small-sized cladocerans may develop stronger tolerance against Microcystis than large-sized ones when both groups are exposed to toxic Microcystis. This may explain why dominant Daphnia is usually replaced by small-sized cladocerans when cyanobacteria bloomed in summer in eutrophic lakes. (c) 2005 Elsevier Ltd. All rights reserved. |
| 英文摘要 | This is the first experimental study to compare difference in the development of tolerance against toxic Microcystis among multi-species of cladocerans (Daphnia, Moina and Ceriodaphnia) pre-exposed to two M. aeruginosa PCC7820 strains (MC-containing and MC-free). Zooplankton were divided into S population (fed Scenedesmus), M-F population (fed Scenedesmus + MC-free Microcystis), and M-C population (fed Scenedesmus + MC-containing Microcystis). M-F and M-C populations were pre-exposed to Microcystis strains for 4 weeks, and their newborns were collected for experiments. A pre-exposure to MC-containing or MC-free Microcystis increased tolerance against toxic Microcystis. The marked increases in survival rate and median lethal time (LT50, 100-194% increase) in the M-C population of Ceriodaphnia suggest that small-sized cladocerans may develop stronger tolerance against Microcystis than large-sized ones when both groups are exposed to toxic Microcystis. This may explain why dominant Daphnia is usually replaced by small-sized cladocerans when cyanobacteria bloomed in summer in eutrophic lakes. (c) 2005 Elsevier Ltd. All rights reserved. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 学科主题 | Environmental Sciences |
| 类目[WOS] | Environmental Sciences |
| 研究领域[WOS] | Environmental Sciences & Ecology |
| 关键词[WOS] | BLUE-GREEN-ALGAE ; DAPHNIA POPULATION ; MIDSUMMER DECLINE ; EUTROPHIC LAKE ; LIFE-HISTORY ; ZOOPLANKTON ; CYANOBACTERIUM ; BLOOMS ; SENSITIVITY ; LIMITATION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000238806200014 |
| 公开日期 | 2010-10-13 |
| 源URL | [http://ir.ihb.ac.cn/handle/152342/8924]  |
| 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 | Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biodivers China, Donghua Expt Stn Lake Ecosyst, Wuhan 4300072, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Nichun,Xie, Ping. Development of tolerance against toxic Microcystis aeruginosa in three cladocerans and the ecological implications[J]. ENVIRONMENTAL POLLUTION,2006,143(3):513-518. |
| APA | Guo, Nichun,&Xie, Ping.(2006).Development of tolerance against toxic Microcystis aeruginosa in three cladocerans and the ecological implications.ENVIRONMENTAL POLLUTION,143(3),513-518. |
| MLA | Guo, Nichun,et al."Development of tolerance against toxic Microcystis aeruginosa in three cladocerans and the ecological implications".ENVIRONMENTAL POLLUTION 143.3(2006):513-518. |
入库方式： OAI收割
来源：水生生物研究所
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