高通量测序技术分析不同温度下赞比亚低品位铜矿生物浸出过程中的微生物多样性

来源期刊:中国有色金属学报2015年第9期

论文作者:郝晓东 曾伟民 彭堂见 胡琪 梁伊丽 尹华群 邱冠周 刘学端

文章页码:2558 - 2565

关键词:铜矿;温度;生物浸出;群落动态;Illumina Miseq测序

Key words:copper ore; temperature; bioleaching; microbial community dynamics; Illumina Miseq sequencing

摘    要:与传统微生物生态学分析方法相比,近几年高通量测序以速度快、通量高、低成本等特征在微生物多样性检测方面得到了充分应用,并采用此方法研究温度对微生物浸出赞比亚一种低品位铜矿的效率和群落生态的影响。结果表明:在30℃和45℃浸出条件下,铜浸出率分别为64.2%和69.4%,45℃条件下获得了较高铜浸出率。采用高通量Illumina Miseq测序技术分析30℃和45℃浸出条件下微生物群落结构及其动态变化,当浸出温度为30℃,Acidithiobacillus caldus和Acidiphilium sp.是主要浸矿菌;当浸出温度为45℃时,Sulfobacillus sp.和Acidithiobacillus caldus是优势种群。

Abstract: The main features of high-throughput sequencing are high speed, high-throughput and low cost compared with the traditional microbial ecology analysis method. In recent years, the high-throughput sequencing technology gets full uses in the investigation of microbial diversity. The effects of temperature on bioleaching of low grade copper ore and the dynamics of microbial community from Zambia were studied. The results show that, at30℃ and 45℃, the copper leachingratesare 64.2% and 69.4%, respectively. The rise of temperature results in higher copper leaching rate at 45℃. The shift of microbial community at 30℃ and 45℃ during bioleaching process was analyzed by Illumina Miseq sequencing platform. The results show that Acidithiobacillus caldus and Acidiphilium sp. are the main microorganisms at 30℃. While at 45℃, Sulfobacillus sp. and Acidithiobacillus caldus dominate in the microbial community.

基金信息:国家重点基础研究发展计划资助项目

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