| 三峡库区支流蓝藻水华对浮游细菌群落组成的影响 |
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| 引用本文： | 毛莉,张明,白芳,崔懿安,施军琼,吴忠兴.三峡库区支流蓝藻水华对浮游细菌群落组成的影响[J].水生生物学报,2016,40(3):609-614. |
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| 作者姓名： | 毛莉 张明 白芳 崔懿安 施军琼 吴忠兴 |
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| 作者单位： | 西南大学生命科学学院,三峡库区生态环境教育部重点实验室,北碚400715 |
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| 基金项目： | 西南大学国家级大学生创新训练项目(201410635044)，中央高校基本业务费专项资金(XDJK2016C111)资助[Supported by the Southwest University National Training Program of Innovation for Undergraduates(201410635044)，Fundamental Research Funds for the Central Universities (XDJK2016C111)] |
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| 摘 要： | 为探究蓝藻水华生消过程对浮游细菌群落组成的影响, 对三峡库区小江支流进行了采样检测, 结果表明小江采样点的水华优势蓝藻主要为水华鱼腥藻和铜绿微囊藻, 水华中期藻细胞密度分别达6.22109和8.77108个/L, 占总生物量的67%和26%。水华中、末期, 浮游细菌群落变化显著。其中, 水华中期主要以玫瑰单胞菌(Roseomona)等属细菌为主, 水华末期则以芽孢杆菌(Bacillus)等属细菌为优势, 且变形菌门(Proteobacteria)及放线菌门(Actinobacteria)细菌相对丰度明显增加, 暗示了细菌群落组成与库区支流蓝藻水华生消变化可能具有相关性。
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| 关 键 词： | 蓝藻水华 浮游细菌 三峡库区 小江 高通量测序 |
| 收稿时间： | 2015-08-03 |
THE EFFECT OF CYANOBACTERIAL BLOOM TO PLANKTONIC BACTERIA COMMUNITY COMPOSITION IN TRIBUTARY OF THE THREE GORGES RESERVOIR |
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| Abstract: | To explore the effect of cyanobacterial blooms to the planktonic bacteria community composition, a sample survey was conducted in Xiaojiang River, a tributary of the Three Gorges Reservoir. We found that Anabaena flosaquae and Microcystis aeruginosa were the dominant species of cyanobacterial blooms with 67% and 26% of tota species in the Xiaojiang River, respectively. The density of cells is 6.22109/L and 8.77108/L, respectively. During the process of cyanobacterial blooms, the community of planktonic bacteria changed significantly. The dominant bacteria in mid and end of blooms were Roseomonas and Bacillus respectively. In addition, the relative abundance of Proteobacteria and Actinobacteria increased significantly in the end of blooms. These results suggest the correlation between the planktonic bacterial community composition and cyanobacterial blooms. |
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| Keywords: | Cyanobacterial blooms Planktonic bacteria The Three Gorges Reservoir Xiaojiang River High throughput sequencing |
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