| Fe~(3+)对铜绿微囊藻生长的影响 |
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| 引用本文： | 刘静,盛海君,徐轶群,封克.Fe~(3+)对铜绿微囊藻生长的影响[J].环境科学与技术,2009,32(1). |
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| 作者姓名： | 刘静 盛海君 徐轶群 封克 |
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| 作者单位： | 扬州大学环境科学与工程学院,江苏,扬州,225009 |
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| 基金项目： | 扬州大学科技创新立项资助项目 |
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| 摘 要： | 实验主要研究培养基中不同Fe3+浓度对铜绿微囊藻生长的影响。试验采用0,10,100,1000,10000,30000 nmol/L6个不同Fe3+浓度培养处理,对铜绿微囊藻的生物量,叶绿素a质量浓度,培养基中N、P的含量等分别进行了测定,并通过扫描电镜观察了不同Fe3+浓度处理下铜绿微囊藻细胞的表面结构。结果显示,Fe3+浓度在0～1000 nmol/L范围内,铜绿微囊藻的生长受到抑制,而Fe3+浓度增加到30000 nmol/L时,在培养的前20天内促进了铜绿微囊藻细胞的生长,但随后生物量和叶绿素a的质量浓度突然下降。根据电子显微镜的照片分析,这个现象很可能是因为细胞死亡或自溶所致。试验的结果表明,介质中过高的Fe3+浓度可以加剧水环境的恶化。
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| 关 键 词： | 铜绿微囊藻 Fe3+ 生长速率 叶绿素a 表面结构 |
Effect of Fe~(3+) on Growth of Microcystis aeruginosa |
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| LIU Jing,SHENG nai-jun,XU Yi-qun,FENG Ke.Effect of Fe~(3+) on Growth of Microcystis aeruginosa[J].Environmental Science and Technology,2009,32(1). |
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| Authors: | LIU Jing SHENG nai-jun XU Yi-qun FENG Ke |
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| Institution: | School of Environment Science and Engineering;Yangzhou University;Yangzhou 225009;China |
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| Abstract: | Effect of Fe3+ on growth of Microcystis aeruginosa was investigated by various Fe3+ concentrations in culture media,including 0,10,100,1,000,10,000 and 30,000nmol/L respectively.Biomass,concentration of Chlorophyll a, uptake of N and P by Microcystis aeruginosa during incubation were measured.Superficial structures of Microcystis aeruginosa were also observed under scan electron microscope.Results showed that growth of Microcystis aeruginosa was restrained under lower Fe3+ concentration between 0 to 1,000nm... |
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| Keywords: | Fe3 |
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