重金属汞和镉对普通小球藻生长的影响  

Effect of Mercury and Cadmium on the Growth of Chlorella vulgaris

作　　者：耿红[1] 刘剑锋[1] 王诺[1] 

机构地区：[1]中南民族大学生命科学学院,武汉430074

出　　处：《中南民族大学学报（自然科学版）》2014年第3期41-43,共3页Journal of South-Central University for Nationalities：Natural Science Edition

基　　金：国家自然科学基金资助项目(30700088);中央高校基本科研业务专项资助项目(CZY11008)

摘　　要：以普通小球藻（ Chlorella vulgaris）为研究材料，研究了不同浓度的Hg2＋和Cd2＋对其生长的影响．结果表明：低浓度（0～0．50 mg/L）的Hg2＋和Cd2＋由于毒性兴奋效应能刺激普通小球藻细胞密度的增长，促进叶绿素含量的增加和蛋白质的合成；当Hg2＋和Cd2＋浓度进一步增加，则抑制普通小球藻的生长；当Hg2＋和Cd2＋的浓度分别为2 mg/L时，无蛋白积累．The effect of the concentration of Hg 2＋and Cd2＋on the growth of Chlorella vulgaris was studied.The results showed that low concentrations of Hg 2＋and Cd2＋（0 -0.50 mg/L） could stimulate the increase of cell density , increase chlorophyll and protein content because of the hormesis effect , while the growth of Chlorella vulgaris was inhibited by high concentrations of Hg2＋ and Cd2＋.When the concentration of Hg2＋ and Cd2＋ reached 2 mg/L, there was no protein accumulation in the algae cells .

关 键 词：汞(II) 镉(II) 普通小球藻 生长 叶绿素 蛋白质 

分 类 号：Q175[生物学—水生生物学] X52[生物学—普通生物学]