Pb^(2+)对牟氏角毛藻生长及生化成分的影响  

Effect of Pb^(2+) on growth of Chaetoceros muelleri Lemmerman and its biological compounds

作　　者：姜爱莉[1] 路艳君[1] 李娟[1] 李国栋[1] 

机构地区：[1]烟台大学海洋学院,山东烟台264005

出　　处：《海洋环境科学》2010年第6期889-891,共3页Marine Environmental Science

基　　金：山东省自然科学基金项目(Y2007D59)

摘　　要：以牟氏角毛藻为实验材料,研究了Pb2+对其生长及生化的影响,结果表明Pb2+浓度低于1.0 mg/L时能促进牟氏角毛藻的生长,高于10.0 mg/L则对牟氏角毛藻的生长产生抑制作用。Pb2+可促进牟氏角毛藻中多糖的合成,但使藻中叶绿素减少。Pb2+浓度为0.1和50.0 mg/L时,蛋白质的含量高于空白组,而在其他实验浓度组的蛋白质的含量低于空白组。Effects of Pb^2＋ on the growth of Chaetoceros muelleri Lemmerman and the content of polysaccharide as well as chlorophyll and protein were discussed in this paper.The results showed that the growth of C.muelleri Lemmerman would be promoted by Pb^2＋ less than 1.0 mg/L,but the restrain effect could be observed at concentration higher than 10.0 mg/L.Pb^2＋ promoted the polysaccharide synthesis of C.muelleri Lemmerman,but reduced its chlorophyll content.The protein content were higher than control when the concentration of Pb^2＋ was 0.1 mg/L and 50.0 mg/L,but were lower at 0.05 mg/L,1.0 mg/L,10.0 mg/L,100.0 mg/L concentration.

关 键 词：牟氏角毛藻 PB^2+ 蛋白质 多糖 叶绿素 

分 类 号：Q935[生物学—微生物学]