| 波吉卵囊藻对Cu2+、Zn2+耐受力和吸附作用的研究 |
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| 引用本文： | 黄翔鹄,魏少红,周美华,江 东.波吉卵囊藻对Cu2+、Zn2+耐受力和吸附作用的研究[J].上海海洋大学学报,2012,21(3):374-381. |
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| 作者姓名： | 黄翔鹄 魏少红 周美华 江 东 |
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| 作者单位： | 东华大学 环境科学与工程学院;东华大学 环境科学与工程学院;东华大学 环境科学与工程学院;广东海洋大学 水产学院 |
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| 基金项目： | 广东省科技计划项目（2010B060200011, 2009B020312013）；广东省海洋渔业科技推广专项（A200901B06）；科技部农业科技成果转化资金资助项目（2010GB2E000351） |
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| 摘 要： | 研究了波吉卵囊藻(Oocystis borgei)对Cu2+和Zn2+的耐受力、吸附率和吸附量的作用规律。结果表明:Cu2+和Zn2+对波吉卵囊藻的生长和叶绿素a含量影响显著(P<0.05)。Cu2+和Zn2+含量的升高,对波吉卵囊藻生长的抑制增大,使叶绿素a含量下降;当Cu2+和Zn2+的含量分别小于0.001 mg/L和0.010 mg/L时,对波吉卵囊藻的生长和叶绿素a含量增加有一定的促进作用;Cu2+和Zn2+对波吉卵囊藻生长的96h-EC50分别为0.229 mg/L和17.390 mg/L。Cu2+含量为1.000mg/L和Zn2+含量为50.000 mg/L的组合,对波吉卵囊藻生长的抑制率为103.881%。Cu2+对波吉卵囊藻的毒性大于Zn2+。波吉卵囊藻对Cu2+和Zn2+有较好的吸附效果,当藻细胞含量为2.291×108ind/L时,对Zn2+的吸附率为81.444%;含量为2.891×108ind/L时,对Cu2+的吸附率为52.521%;吸附量分别为9.469 mg/g(5.208×10-9mg/ind)和2.914 mg/g(1.603×10-9mg/ind),对波吉卵囊藻不会产生明显毒性。
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| 关 键 词： | 波吉卵囊藻 Cu2+ Zn2+ 耐受力 吸附率 |
Adsorption and tolerance of Cu2+ and Zn2+ by Oocystis borgei |
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| HUANG Xiang-hu,WEI Shao-hong,ZHOU Mei-hua and JIANG Dong.Adsorption and tolerance of Cu2+ and Zn2+ by Oocystis borgei[J].Journal of Shanghai Ocean University,2012,21(3):374-381. |
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| Authors: | HUANG Xiang-hu WEI Shao-hong ZHOU Mei-hua and JIANG Dong |
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| Institution: | 1.School of Environmental Science and Engineering,Donghua University,Shanghai 201620,China;2.Fisheries College,Guangdong Ocean University,Zhanjiang 524025,Guangdong,China) |
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| Abstract: | The effect of Cu2+,Zn2+ on the tolerance and adsorption rate of the microalgae Oocystis borgei was studied.Results show that Zn2+ and Cu2+ has a significant impact on the growth and the content of chlorophyll a of O.borgei.The growth of the algae was inhibited when the concentrations of Cu2+ and Zn2+ increased.However,low concentration(<0.001 mg/L amd 0.010 mg/L) of Cu2+ and Zn2+ improved the growth rate of O.borgei and the synthesis of chlorophyll a.The 96h-EC50 of Cu2+ and Zn2+ are 0.229 mg/L and 17.390 mg/L,respectively.The combination of Cu2+ and Zn2+ has the highest inhibition(103.881%) when 1.000 mg/L of Cu2+ and 50.000 mg/L of Zn2+ are added to the culture medium.The Cu2+ is more toxic than Zn2+.The adsorption rate for Zn2+ is 81.444% when the cell abundance is 2.291×108 ind/L,while that for Cu2+ is 52.521% when the cell abundance is 2.891×108 ind/L.This is equivalent to 9.469 mg/g(5.208×10-9 mg/ind) and 2.914 mg/g(1.603×10-9 mg/ind).No toxic effects are observed at these assimilation rates. |
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| Keywords: | Oocystis borgei Cu2+ Zn2+ tolerance adsorption rate |
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