| 太湖蓝藻水华期间水体和底泥中产毒微囊藻与非产毒微囊藻种群丰度研究 |
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| 引用本文： | 李大命,孔繁翔,于洋,张民,史小丽. 太湖蓝藻水华期间水体和底泥中产毒微囊藻与非产毒微囊藻种群丰度研究[J]. 环境科学学报, 2011, 31(2): 292-298 |
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| 作者姓名： | 李大命 孔繁翔 于洋 张民 史小丽 |
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| 作者单位： | 1. 中国科学院南京地理与湖泊研究所,湖泊与环境国家重点实验室,南京,210008;中国科学院研究生院,北京,100049
2. 中国科学院南京地理与湖泊研究所,湖泊与环境国家重点实验室,南京,210008 |
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| 基金项目： | 国家重点基础研究计划项目（973） |
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| 摘 要： | 运用实时荧光定量PCR(Quantitative real-time PCR,QPCR)技术研究了太湖蓝藻水华期间不同湖区水体和底泥中产毒微囊藻与总微囊藻种群丰度.结果表明,湖区间产毒微囊藻种群和总微囊藻种群丰度明显不同:在水体中,竺山湾(N5)和梅梁湾(N2)产毒微囊藻和总微囊藻种群丰度高于贡湖湾(N4)和湖心(S4...
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| 关 键 词： | 微囊藻种群丰度 产毒微囊藻 荧光定量PCR 太湖 |
| 收稿时间： | 2010-05-17 |
| 修稿时间： | 2010-09-01 |
The abundance of microcystin-producing and non-microcystin-producing Microcystis populations in the water column and sediment during a water bloom in Lake Taihu |
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| LI Daming,KONG Fanxiang,YU Yang,ZHANG Min and SHI Xiaoli. The abundance of microcystin-producing and non-microcystin-producing Microcystis populations in the water column and sediment during a water bloom in Lake Taihu[J]. Acta Scientiae Circumstantiae, 2011, 31(2): 292-298 |
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| Authors: | LI Daming KONG Fanxiang YU Yang ZHANG Min SHI Xiaoli |
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| Affiliation: | 1. State Key laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008; 2. Graduate School of Chinese Academy of Sciences, Beijing 100049,State Key laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008,State Key laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008,State Key laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008 and State Key laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008 |
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| Abstract: | The abundances of microcystin-producing and total Microcystis populations in water column and surface sediment in Lake Taihu during water bloom were investigated by using quantitative real-time PCR (QPCR) technique. Results showed that microcystin-producing and total Microcystis, in both water column and sediment, were more abundant in Zhushan Bay and Meiliang Bay than in Gonghu Bay and the center of lake. The proportion of toxic Microcystis species to the total Microcystis populations in water column from Zhushan bay, Meiliang Bay, Gonghu Bay, and the center of lake were 41.12 %, 40.25 %, 28.53 %, and 9.36 %, respectively. In sediment, toxic Microcystis species accounted for 6.51 %, 8.49 %, 5.14 %, and 2.22 % of the total Microcystis populations in those four lake regions, respectively. In conclusion, the abundance and composition of Microcystis differed spatially in water column and surface sediment in Lake Taihu during water bloom. The abundances of toxic and total Microcystis populations in water column and sediment are relatively high in the high trophic lake regions, and in parallel, the proportion of toxic Microcystis to total Microcystis population is also high when water body has a high trophic level. In addition, toxic Microcystis occupied much more of the total Microcystis in water column than in sediment. |
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| Keywords: | the abundance of Microcystis population microcystin-producing Microcystis quantitative real-time PCR Lake Taihu |
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