| 浸矿细菌抗镉性能的试验研究 |
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| 引用本文： | 佟琳琳,姜茂发,杨洪英,殷书岩.浸矿细菌抗镉性能的试验研究[J].东北大学学报(自然科学版),2007,28(10):1434-1437. |
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| 作者姓名： | 佟琳琳 姜茂发 杨洪英 殷书岩 |
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| 作者单位： | 东北大学,材料与冶金学院,辽宁,沈阳,110004 |
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| 基金项目： | 国家自然科学基金，国家高技术研究发展计划(863计划)，高等学校博士学科点专项科研项目，辽宁省自然科学基金 |
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| 摘 要： | 通过在培养基中加入一定浓度的镉离子,确定浸矿细菌对镉离子的抗性以及镉对浸矿细菌生长的影响.研究表明:不同浓度的镉离子对细菌的生长和活性起不同的作用.菌液中镉离子浓度低于0.1 mmol/L时,镉离子是浸矿细菌的营养物质,对细菌的生长起促进作用;随着镉离子浓度的增高,对细菌的生长起一定的抑制作用.浸矿细菌表现出良好的抗镉能力,镉离子浓度在高达8 mmol/L时,浸矿细菌仍然生长,保持好的活性.菌液中镉离子浓度为10 mmol/L时,浸矿细菌的生长受到影响.
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| 关 键 词： | 镉离子 浸矿细菌 细菌抗毒性 毒性离子 细菌生长 |
| 文章编号： | 1005-3026（2007）10-1434-04 |
| 修稿时间： | 2007-05-10 |
Cadmium-Resistance of Ore Bioleaching Bacteria |
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| TONG Lin-lin,JIANG Mao-fa,YANG Hong-ying,YIN Shu-yan.Cadmium-Resistance of Ore Bioleaching Bacteria[J].Journal of Northeastern University(Natural Science),2007,28(10):1434-1437. |
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| Authors: | TONG Lin-lin JIANG Mao-fa YANG Hong-ying YIN Shu-yan |
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| Institution: | (1) School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China |
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| Abstract: | Cadmium ions were added into the culture medium to make certain the cadmium-resistance of ore bioleaching bacteria and the influence of cadmium ions on their growth.The results showed that different concentrations of cadmium ions affect differently the growth and activity of the bacteria.If the concentration in the liquid medium is lower than 0.1 mmol/L,it is nutrient to the strain we selected and expedites its growth,whereas the further increasing concentration will inhibit its growth.Ore bioleaching bacteria have a good ability to resist cadmium and they remain growing with high activity kept on even if the concentration of cadmium ions is up to 8 mmol/L.However,if the concentration is 10 mmol/L,the growth of ore bioleaching bacteria will be inhibited. |
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| Keywords: | cadmium ion ore bioleaching bacteria bacteria mithridatism toxic ion bacterial growth |
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