纳米Fe_2O_3对2种微藻生长的影响  

Effect of Nano-Fe_2O_3 on Growth of Two Species of Microalgae

作　　者：裴峰[1] 王长海[1] 

机构地区：[1]南京农业大学资源与环境科学院江苏省海洋生物学重点实验室,江苏南京210095

出　　处：《烟台大学学报（自然科学与工程版）》2015年第3期186-192,共7页Journal of Yantai University(Natural Science and Engineering Edition)

基　　金：国家863课题资助项目(2012AA021706)

摘　　要：研究了纳米Fe2O3颗粒的悬浮液对蛋白核小球藻和斜生栅藻生长的影响.通过生长抑制实验确定了纳米Fe2O3促进2藻种生长的最佳浓度以及临界浓度范围,通过测定光合特性以及氧化应激水平和酶活性层面确定了纳米Fe2O3对2藻种生长的内部物质变化的影响,并分析其具体调节机制.结果表明,纳米Fe2O3颗粒的悬浮液对2藻种生长的最适浓度是6 mg/L,高于此浓度即对藻细胞造成毒性抑制.该实验结果可为工业生产废水的处理排放提供参考.The effect of Fe2O3 nanoparticle suspension on the growth of Chlorella pyrenoidosa and Scenedesmus obliquus is studied. The optimal concentration and critical concentration range of nano-Fe203 to promote the growth of the two microalgae are obtained through growth inhibition test. Effect of nano-Fe2O3 on internal material change of the two microalgae and the corresponding mechanisms are revealed by testing the photosynthetic characteristics, the level of oxidative stress, and the enzyme activity. The results show that optimum concentration of nano-Fe203 on the growth of Chlorella pyrenoidosa and Scenedesmus obliquus is 6 mg/L, and higher concentration will result in cell toxicity inhibition. The results provide a reference for managing industrial waste water.

关 键 词：纳米Fe2O3颗粒 蛋白核小球藻 斜生栅藻 光合特性 氧化应激 

分 类 号：TD7[矿业工程—矿井通风与安全]