水库微囊藻毒素3种异构体与环境因子的关系研究  

Research on the Relationship between Three Isomers of Microcystins and Environmental Factors

作　　者：张洪玲[1] 蔡金傍[1] 李文奇[2] 

机构地区：[1]环境保护部南京环境科学研究所,江苏南京210042 [2]中国水利水电科学研究院水环境研究所,北京100038

出　　处：《安徽农业科学》2011年第29期18075-18077,18124,共4页Journal of Anhui Agricultural Sciences

基　　金：水利部科技创新项目(SCX2002-04);国家自然科学基金项目(50579015)

摘　　要：[目的]在野外自然环境下研究微囊藻毒素3种异构体与环境因子的关系。[方法]应用高效液相色谱,对北方某水库5个采样点水体中微囊藻毒素3种异构体(MC-LR、RR和YR)进行了为期1年的监测,研究3种异构体与环境因子的相互关系。[结果]3种异构体均与叶绿素a呈现正相关关系;LR和YR异构体均与水温呈显著线性正相关,但是RR异构体与水温的相关性不明显;LR和YR异构体与总氮、硝酸盐氮和有机氮的相关性比较显著,而RR异构体只与硝酸盐氮存在显著负相关关系;LR和RR均与总磷和有机磷呈现显著正相关,而磷对YR异构体的影响相对较小,它们之间的相关性不明显。[结论]研究了微囊藻毒素3种异构体与叶绿素a、水温及氮、磷等环境因子的关系,并初步分析了其原因,对控制水体蓝藻的生长和毒素合成有一定的意义。[Objective] The relationship between three isomers of microcystins and environmental factors were studied in the fields.[Method] Three isomers of microcystins（MC-LR,RR and YR） in water of five sampling spots in a northern reservoir were observed for one year with High Performance Liquid Chromatography analytical method in order to study the relationship between three isomers and environmental factors.[Result] The three isomers of microcystins showed positive correlation with chlorophyll a;LR and YR isomers all had significant linear positive correlations with the water temperature,but the RR isomer showed no significant correlation with the water temperature;LR and YR isomers had relatively significantly correlation with the contents of total nitrogen,nitrate nitrogen and organic nitrogen,while the RR isomer only showed a significant negative correlation with the content of nitrate nitrogen;LR and RR isomers both showed significant positive correlations with the contents of total phosphorus and organic phosphorus,while the phosphorus hardly affected the YR isomer and showed no evident correlation.[Conclusion] The relationship of three isomers of microcystins and environmental factors such as chlorophyll a,water temperature,nitrogen,phosphorus were studied and the reasons were investigated,which might offered a reference for controlling the growth of blue algae in water and toxin synthesis.

关 键 词：水库 微囊藻毒素 异构体 环境因子 

分 类 号：X52[环境科学与工程—环境工程]