Cd(Ⅱ)、Zn(Ⅱ)对新月菱形藻生长及生化成分的影响  

Effect of Cd(Ⅱ)and Zn(Ⅱ) on growth and biochemical composition of alga Nitzschia closterium

作　　者：路艳君[1] 姜爱莉[1] 窦柏蕊[1] 王粲[1] 王长海[1] 

机构地区：[1]烟台大学海洋学院,山东烟台264005

出　　处：《大连水产学院学报》2010年第2期178-182,共5页Journal of Dalian Fisheries University

基　　金：山东省自然科学基金资助项目(Y2007D59)

摘　　要：研究了不同浓度的Cd(Ⅱ)、Zn(Ⅱ)对新月菱形藻Nitzschia closterium生长及细胞内蛋白质、多糖、叶绿素等生化成分含量的影响。结果表明:新月菱形藻对两种重金属均有一定的耐受力;Cd(Ⅱ)、Zn(Ⅱ)浓度分别低于3.0、1.0 mg/L时对新月菱形藻的生长没有显著影响(P>0.05),高于此浓度则产生明显的抑制作用(P<0.05);Zn(Ⅱ)对新月菱形藻胞内蛋白质含量的影响不明显(P>0.05),Cd(Ⅱ)能抑制新月菱形藻蛋白质的合成;低于3.0 mg/L的Cd(Ⅱ)、Zn(Ⅱ)能促进新月菱形藻胞内多糖和叶绿素的合成。Effects of Cd（Ⅱ）and Zn（Ⅱ） on growth and content of polysaccharide as well as chlorophyll and protein were studied in alga Nitzschia closterium.The alga showed to some extent tolerance to the two metals which did not show significant effect on the growth of the alga at lower than 3.0,and 1.0 mg/L for Cd（Ⅱ）and Zn（Ⅱ）（P0.05）.However,significant inhibition of the growth in the alga was observed at the metal concentrations of more than 3.0,and 1.0 mg/L（P〈0.05）.Cd（Ⅱ）refrained the synthesis of protein in the algae while there was no evident effect of Zn（Ⅱ） on the protein synthesis in the alga（P〉0.05）.Cd（Ⅱ）and Zn（Ⅱ） promoted the synthesis of polysaccharide and chlorophyll in the alga at concentration of less than 3.0 mg/L.

关 键 词：新月菱形藻 Cd(Ⅱ) Zn(Ⅱ) 生长 生化成分 

分 类 号：X171.5[环境科学与工程—环境科学]