环境水平下土霉素对铜绿微囊藻藻毒素释放的影响研究
关键词：土霉素；铜绿微囊藻；藻毒素；抑制
The research of Oxytetracycline effect on the release of Microcystis aeruginosa microcystin at ambient levels
Abstract: oxytetracycline is one of antibiotics which currently the most widely used in the world and have a steady output，it residues in the environment has serious ecological risks for the ecological environment.Algal Blooms is a another common aquatic ecosystems problem in lakes， and microcystin was the serious problem coming with the algal blooms.As two hazardous factor to the aquatic ecosystem co-exist in the aquatic environment，there is contact between the two which is worth exploring.In this paper，the main research is about under the effect of oxytetracycline ，the change of the Microcystis aeruginosa growth condition and production and release of microcystin，The experimental data show that the Microcystis aeruginosa under the effect of 0.2mg/L oxytetracycline grow faster than the control group in short time.0.2mg/L oxytetracycline is a dangerous ecological value.In the production and release of microcystin research ，1mg/L concentration of oxytetracycline stimulate released of microcystin and 5mg/L concentration of oxytetracycline can make the maximum inhibiting to the production and release of microcystin concentration.After this research ，it provide us a theoretical basis on control of the concentration of oxytetracycline to inhibit the growth of Microcystis aeruginosa ，make a primary research for the high concentration of oxytetracycline used as a microcystin inhibitor.
Keywords:Oxytetracycline， Microcystis aeruginosa， Microcystin， Suppression
目录
1. 引言（绪论） 1
1.1 抗生素的污染现状 1
1.1.1概况 1
1.1.2土霉素（四环类抗生素）的污染现状 1
1.1.3水环境中抗生素污染 2
1.2 土霉素（四环类抗生素）的生态毒性 3
1.3 蓝藻概况 3
1.3.1 蓝藻 3
1.3.2 铜绿微囊藻 4
1.3.3 藻类水华与水体富营养 4
1.3.4微囊藻毒素毒性 4
1.3.5微囊藻毒素的产生 5
1.3.6微囊藻毒素污染现状 6
1.4 课题研究的意义和目的 7
1.5 课题研究内容 8
2. 实验条件 9
2.1 实验药品 9
2.2实验仪器 9
2.3实验材料 10
3. 实验方法与内容 12
3.1 预实验 12
3.1.1 BG11培养液的配置 12
3.1.2 高压蒸气灭菌 12
3.1.3 铜绿微囊藻的接种 13
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