砷(As^(3+))胁迫对鄂尔多斯高原碱湖钝顶螺旋藻生理生化指标的影响  

Effects of Arsenic Stress on Physiology and Biochemistry of Spirulina in Alkaline Lakes of the Erdos Plateau

作　　者：穆文静[1] 杜玲[1] 

机构地区：[1]内蒙古师范大学生命科学与技术学院,内蒙古呼和浩特010022

出　　处：《黑龙江农业科学》2017年第7期17-21,共5页Heilongjiang Agricultural Sciences

基　　金：内蒙古自治区自然科学基金资助项目(2013MS0517)

摘　　要：为提高钝顶螺旋藻的养殖质量,以鄂尔多斯高原碱湖钝顶螺旋藻为材料,用不同浓度的亚砷酸钠(As^(3+))培养液培养螺旋藻,研究了砷(As^(3+))胁迫对钝顶螺旋藻的生理生化指标的影响。结果表明:砷(As^(3+))胁迫会使叶绿素a和类胡萝卜素的波峰发生蓝移,藻胆蛋白的波峰发生红移。叶绿素a和类胡萝卜素含量在低浓度砷(As^(3+))胁迫下增加,高浓度砷(As^(3+))胁迫下降低。藻蓝蛋白和可溶性蛋白的含量则是在高浓度砷(As^(3+))和低浓度砷(As^(3+))胁迫下均会降低。In order to improve the quality of cultured Spirulina platensis,using Spirulina platensis as material,which lives in Ordos Plateau Alkali lake.And Spirulina was prepared by adding different concentrations of sodium arsenite（As^3＋）in the culture medium to study the effects of arsenic（As^3＋）stress on the growth of Spirulina.The physiological and biochemical indexes of Spirulina platensis were studied.The results showed that arsenic（As^3＋）stress caused blue shift of chlorophyll a and carotenoids and red shift of phycobiliprotein.The content of chlorophyll a and carotenoids increased with low concentration of arsenic（As^3＋）,but they decreased with high concentration.While content of the phycocyanin and soluble protein was reduced by arsenic（As^3＋）stress.

关 键 词：砷胁迫 鄂尔多斯高原碱湖钝顶螺旋藻 抑制作用 

分 类 号：Q945.78[生物学—植物学] X52[环境科学与工程—环境工程]