| 紫外线诱变获得耐极低pH的氧化亚铁硫杆菌突变株 |
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| 引用本文： | 刘亚洁,李江,陈功新,刘艳.紫外线诱变获得耐极低pH的氧化亚铁硫杆菌突变株[J].有色金属(冶炼部分),2005(3):6-10. |
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| 作者姓名： | 刘亚洁 李江 陈功新 刘艳 |
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| 作者单位： | 东华理工学院土木与环境工程系,江西省抚州市,344000 |
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| 基金项目： | 江西省教委科技项目资助(赣财教[2003]-97号) |
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| 摘 要： | 一株自某金矿分离纯化而得到的最适pH2 0的氧化亚铁硫杆菌(Acidobacillusferrooxidans),经紫外线诱变处理、定向筛选后获得最适pH为1 2～2 0、且可在pH0 6的条件下生长的突变株。该菌株经过八代接种培养后氧化活性稳定。两菌株诱变前后的形态及生理特性比较表明,该诱变菌株为一氧化亚铁硫杆菌的变种。
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| 关 键 词： | 氧化亚铁硫杆菌 pH 紫外线诱变 定向筛选 |
| 文章编号： | 1007-7545(2005)03-0006-05 |
An Acidobacillus Ferrooxidans Mutant Tolerating the Extremely Low pH Obtained by Ultraviolet Mutagenesis |
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| LIU Ya-jie,LI Jiang,CHEN Gong-xin,LIU Yan.An Acidobacillus Ferrooxidans Mutant Tolerating the Extremely Low pH Obtained by Ultraviolet Mutagenesis[J].Nonferrous Metals(Extractive Metallurgy),2005(3):6-10. |
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| Authors: | LIU Ya-jie LI Jiang CHEN Gong-xin LIU Yan |
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| Abstract: | An original strain of Acidobacillus Ferrooxidans which is separated from a kind of gold ore with optimum pH 2.0 and high activity in oxidizing ferrous has been treated by ultraviolet irradiation. A mutant strain is obtained after a series of directional filtration which optimum pH is around 1.2～2.0 and can grow at the extremely condition of pH 0.6. Meanwhile it is stable after 8 times inoculating culturing. The comparison of morphology and physiology of the original strain and mutant strain indicates that the mutant strain is a kind of variety of Acidobacillus Ferrooxidans. |
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| Keywords: | Acidobacillus Ferrooxidans pH Ultraviolet irradiation Directional fltration |
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