| A new strain Acidithiobacillus albertensis BY-05 for bioleaching of metal sulfides ores |
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| 作者姓名： | 夏金兰 彭安安 何环 杨宇 刘学端 邱冠周 |
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| 作者单位： | Key laboratory of Biometallurgy of Ministry of Education School of Minerals Processing and Bioengineering Central South University，Key laboratory of Biometallurgy of Ministry of Education，School of Minerals Processing and Bioengineering Central South University，Key laboratory of Biometallurgy of Ministry of Education，School of Minerals Processing and Bioengineering Central South University，Key laboratory of Biometallurgy of Ministry of Education，School of Minerals Processing and Bioengineering Central South University，Key laboratory of Biometallurgy of Ministry of Education，School of Minerals Processing and Bioengineering Central South University，Key laboratory of Biometallurgy of Ministry of Education，School of Minerals Processing and Bioengineering Central South University，Changsha 410083，China，Changsha 410083，China，Changsha 410083，China，Changsha 410083，China，Changsha 410083，China，Changsha 410083，China |
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| 基金项目： | 国家自然科学基金;国家重点基础研究发展计划(973计划) |
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| 摘 要： | An acidophilic,rod-shaped Gram-negative sulfur oxidizing strain BY-05 was isolated from an acid mine drainage of copper ore in Baiyin area,Gansu Province,China.Ultrastructural studies show that the isolate has a tuft of polar flagella and possesses sulfur granules with clear membrane adhering to the cell innermembrane.Physiological study shows that this isolate grows autotrophically and aerobically by oxidizing S0and reduced inorganic sulfur compounds(SO, 2 23-SO, 2 24- S2 -and ZnS)with the optimum growth at pH 3.5-4.0 and at the temperature range of 25-30℃.The 16S rRNA gene sequence(DQ 423683)of strain BY-05 has 100%sequence similarity to that of Acidithiobacillus albertensis(DSM 14366).So it is identified and named as A. albertensis BY-05.Bioleaching experiments with this new strain show that it can play an important role in recovery of metals from chalcopyrite and sphalerite.
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| 关 键 词： | 硫化物 矿石 生物浸取 金属 选矿工艺 黄铁矿 |
| 收稿时间： | 2006-04-04 |
| 修稿时间： | 2006-07-23 |
A new strain Acidithiobacillus albertensis BY-05 for bioleaching of metal sulfides ores |
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| XIA Jin-lan,PENG An-an,HE Huan,YANG Yu,LIU Xue-duan,QIU Guan-zhou.A new strain Acidithiobacillus albertensis BY-05 for bioleaching of metal sulfides ores[J].Transactions of Nonferrous Metals Society of China,2007,17(1):168-175. |
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| Authors: | XIA Jin-lan PENG An-an HE Huan YANG Yu LIU Xue-duan QIU Guan-zhou |
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| Affiliation: | Key laboratory of Biometallurgy of Ministry of Education, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China |
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| Abstract: | An acidophilic, rod-shaped Gram-negative sulfur oxidizing strain BY-05 was isolated from an acid mine drainage of copper ore in Baiyin area, Gansu Province, China. Ultrastructural studies show that the isolate has a tuft of polar flagella and possesses sulfur granules with clear membrane adhering to the cell innermembrane. Physiological study shows that this isolate grows autotrophically and aerobically by oxidizing S0 and reduced inorganic sulfur compounds (S2O2-3, S2O2-4, S2- and ZnS) with the optimum growth at pH 3.5–4.0 and at the temperature range of 25–30 °C. The 16S rRNA gene sequence (DQ 423683) of strain BY-05 has 100% sequence similarity to that of Acidithiobacillus albertensis (DSM 14366). So it is identified and named as A. albertensis BY-05. Bioleaching experiments with this new strain show that it can play an important role in recovery of metals from chalcopyrite and sphalerite. |
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| Keywords: | sulfur oxidation Acidithiobacillus albertensis Acidithiobacillus thiooxidans isolation and characterization of bacteria bioleaching |
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