| 十红滩铀矿床中微生物种类多样性及生态分布规律的研究 |
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| 引用本文： | 冯晓异,黄建新,乔海明.十红滩铀矿床中微生物种类多样性及生态分布规律的研究[J].矿物学报,2008,28(3). |
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| 作者姓名： | 冯晓异 黄建新 乔海明 |
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| 作者单位： | 1. 西北大学生命科学学院,陕西,西安,710069
2. 核工业203研究所,陕西,成阳,712000 |
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| 基金项目： | 973项目2003CB214603 |
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| 摘 要： | 利用生物学方法对新疆十红滩砂岩型铀矿各亚带矿石中参与C、N、S、Fe、O等元素循环的主要微生物菌群进行了研究.结果表明:在铀矿床中赋存着硫酸盐还原菌(SRB)、铁细菌(IB)、硫杆菌、硝化细菌、亚硝化细菌、反硝化细菌、芽孢菌等各类细菌.其中sRB种类较多,主要为脱硫弧菌属、脱硫肠状菌属、脱磺单胞菌属、脱硫杆菌性等.IB主要为鞘铁菌属、球衣菌属、瑙曼氏菌属和赭菌属.硫杆菌包括氧化硫硫杆菌、氧化亚铁硫杆菌、排硫硫杆菌、脱氮硫杆菌.硝化细菌主要为硝化杆菌属.亚硝化细菌主要为亚硝化单孢菌属.异养反硝化细菌为施氏假单胞菌和类鼻疽假单胞菌,自养反硝化细菌为脱氮硫杆菌.芽孢杆菌包括巨大芽孢杆菌、蜡状芽孢杆菌、侧孢芽孢杆菌、蜂房芽孢杆菌、球形芽孢杆菌.实验证明:各类细菌的种类和数量在铀矿床的空间分布上存在着一定的规律性对铀矿床的地球化学分带性具有一定的指示作用.
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| 关 键 词： | 砂岩型铀矿 微生物多样性 分布规律 |
STUDY ON MICROBIAL DIVERSITY AND ECOLOGICAL DISTRIBUTION IN THE SHIHONGTAN SANDSTINE-TYPE URANIUM DEPOSIT |
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| FENG Xiao-yi,HUANG Jian-xin,QIAO Hai-ming.STUDY ON MICROBIAL DIVERSITY AND ECOLOGICAL DISTRIBUTION IN THE SHIHONGTAN SANDSTINE-TYPE URANIUM DEPOSIT[J].Acta Mineralogica Sinica,2008,28(3). |
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| Authors: | FENG Xiao-yi HUANG Jian-xin QIAO Hai-ming |
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| Institution: | FENG Xiao-yi1,HUANG Jian-xin1,QIAO Hai-ming2 |
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| Abstract: | By using the biological method,microorganisms which are involved in element cycling,such as carbon,nitrogen,sulfur,iron,and oxygen in the Shihongtan uranium deposit were isolated and identified,including sulfate-reducing bacteria(SRB),Thiobacillus,iron-reducing bacteria(IB),Nitrobacter,Nitrosomonas,Bacillus and so on.SRB are the main microorganisms,witch are Desulfovibrio,Desulfotomaculum,Desulfuromonas,Desulfobacter.The main genera of iron-bacteria are Ochrobium,Siderocapsa,Naumanniella,Sphaerotilus.The genera of Thiobacillus are Thiobacillus thiooxidans,Thiobacillus ferrooxidans,Thiobacillus denitrificans,Thiobacillus thioparus.Bacteria which can utilize nitrate and nitrite are Nitrobacter,Nitrosomonas.The main genera of heterotrophic denitrifying bacteria are P.Stutzeri and P.paeudomallei.The genera of autotrophic is Thiobacillus denitrificans.The mian species of Bacillus are B.cereus,B.sphaericus,B.alvei,B.aterospore,B.megaterium.The result indicated that the distribution of the main microbe group in the subzones is different and the geochemical characteristics obviously showed that uranium could be reduced and precipitated by sulfate-reducing bacteria through metabolism. |
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| Keywords: | sandstone-type uranium deposit microbial diversity distribution regulation |
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