| 一株脱氮细菌的分离鉴定及脱氮活性检测 |
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| 引用本文： | 高存川,张晓慧,徐春厚.一株脱氮细菌的分离鉴定及脱氮活性检测[J].广东畜牧兽医科技,2012,37(3):39-41. |
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| 作者姓名： | 高存川 张晓慧 徐春厚 |
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| 作者单位： | 广东海洋大学动物科学系,广东湛江,524088 |
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| 基金项目： | 基金项目:广东省科技计划项目 |
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| 摘 要： | 利用硅胶平板从淤泥中分离到一株脱氮茵FX7，该菌株在好氧条件下具有降解亚硝态氮的能力。亚硝态氮初始浓度为2500mg／L时，该菌株在48h内亚硝态氮降解率为45％。通过形态学特征、生理生化特性及16SrDNA同源性比较对菌株FX7进行鉴定，初步判断其为假单胞菌（Pseudomonassp）。Pb^2＋、Hg^2＋和Cr^2＋对菌株FX7的亚硝态氮降解活性有很强的抑制作用，而低浓度的Zn^2＋和Fe^3＋对其活性有一定的激活作用。
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| 关 键 词： | 益生菌 生物脱氮 分离鉴定 |
Isolation and identification of a denitrogenation microorganism and its nitrogen removal activity |
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| solation and identification of a denitrogenation microorganism and its nitrogen removal activity Gao Cunchuan,Zhang Xiaohui,Xu Chunhou.Isolation and identification of a denitrogenation microorganism and its nitrogen removal activity[J].Guangdong Journal of Animal and Veterinary Science,2012,37(3):39-41. |
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| Authors: | solation and identification of a denitrogenation microorganism and its nitrogen removal activity Gao Cunchuan Zhang Xiaohui Xu Chunhou |
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| Institution: | (Animal Science Department,Guangdong Ocean University,Zhanjiang 524088,China) |
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| Abstract: | A denitrogenation microorganism FX7 was isolated with silicate plate from soil.The experiment results showed that under aerobic conditions the reduction efficiency within 48 hours was up to 45% with initial nitrite nitrogen concentration of 2500 mg/L.On the basis of its physiological and molecular properties,strain FX7 was identified as Pseudomonas sp.Though the nitrite nitrogen removal ability of strain FX7 was strongly inhibited by ions Pb2+,Hg2+and Cr7+,the nitrite nitrogen removal ability was activated by ions of Zn2+ and Fe3+ with low concentration. |
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| Keywords: | Probiotics Biological nitrogen removal Isolation and identification |
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