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Trans. Nonferrous Met. Soc. China 30(2020) 1635-1646 Comparative genome analysis on intraspecific evolution and nitrogen fixation of Leptospirillum ferriphilum isolates Hong-wei LIU1,2, Liang-feng... 2020 Abstract: To reveal the intraspecific evolution of Leptospirillum ferriphilum isolates which thrived in industrial bioleaching ecosystems and acid mine drainages, genome sequences of L. ferriphilum......
two groups of the genus Leptospirillum and finding that leptospirillum ferriphilum sp.nov. Dominates South Africa commercial biooxidation tanks that operate at 40 ℃[J]. Applied and Environmental...铁氧化细菌在不同温度条件下所合成的赭黄色高铁沉淀进行了分析.结果表明:无论是嗜铁钩端螺旋菌DY菌株(Leptospirillum ferriphium),还是嗜酸氧化亚铁硫杆菌GF菌株(Acidithiobacillus ferrooxidans)合成的沉淀都是黄钾铁矾和黄铵铁矾的混合物；其中,GF合成的沉淀混合物中黄钾铁矾的含量比DY合成的黄钾铁矾约高出5.53%；而DY合成的沉淀中,黄铵铁矾的......
. Molecular relationship between two groups of Leptospirillum and the finding that the world and the Leptospirillum ferriphilum sp. nov. dominates South African commercial biooxidation tanks that operate... Identification and heavy metal toxicity assessment upon Fe2+-oxidizing ability of Leptospirillum-like bacterium isolated from acid mine drainage GAO Jian1, DING Jian-nan2, KANG Jian1, WU Xue-ling2......
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of this study was to explore the ecological functions of Ferroplasma thermophilum when it was mixed with Leptospirillum ferriphilum or Acidithiobacillus caldus under the stress of yeast extract or Cu2...在酵母粉或Cu2+胁迫下古菌Ferroplasma thermophilum与两种中度嗜热细菌的协同作用仉丽娟,姬厚国,王玉光,万利利,周洪波(中南大学 资源加工与生物工程学院 生物冶金教育部重点实验室,长沙 410083)摘 要:本研究目的为考察在酵母粉或Cu2+胁迫下,古菌Ferroplasma thermophilum在分别与其他两种中度嗜热细菌(Leptospirillum......
Formation of passivation film during pyrrhotite bioleached by pure L. ferriphilum and mixed culture of L. ferriphilum and A. caldusGU Guo-hua(顾帼华)1, YANG Hui-sha(杨慧沙)1, HU Ke-ting(胡可婷)1, WANG Chong... Engineering, Central South University, Changsha 410083, China)Abstract:Bioleaching and electrochemical experiments were conducted to evaluate pyrrhotite dissolution in the presence of pure L. ferriphilum......
实验.研究结果表明:中等嗜热菌在12~55 ℃时可保持浸矿活性,其最适生长温度为45~50 ℃,温度达到60 ℃时初始阶段还保持一定活性,但几天后菌浓度逐渐降低,种群比例发生较大变化；克隆文库分析表明:45 ℃和60 ℃条件下浸矿细菌主要为Leptospirillum ferriphilum,Acidithiobacillus caldus,Sulfobacillus thermotolerans和Acidosphaera rubrifaciens,其中Leptospirillum ferriphilum菌所占比例较大,是浸矿过程中的优势菌种.60 ℃条件下浸出过程中还存在古生菌Ferroplasma cupricumulans,古生菌可以利用其他浸矿菌产生的有机物为能源生长.它们之间对浸出所起的作用是相辅相成的,可共同促进黄铜矿的溶解. 关键词:细菌浸出；黄铜矿；中等嗜热菌；克隆文库 中......
Bioleaching of pyrite by A. ferrooxidans and L. ferriphilum ZHANG Lin(张 麟), QIU Guan-zhou(邱冠周), HU Yue-hua(胡岳华), SUN Xiao-jun(孙小俊), LI Jian-hua(李建华), GU Guo-hua(顾帼华) School of Minerals... of A. ferrooxidans and L. ferriphilum, in which different pulp concentration, inoculation amount, external addition of Fe3+ and initial pH value were performed. It is found that A. ferrooxidans and L......
. Chalcopyrite concentrate was leached by moderately thermophilic mixed microorganisms, including Acidithiobacillus caldus, Leptospirillum ferriphilum, Sulfobacillus acidophilus, Sulfobacillus... Mineral sample composition by energy spectrum analysis 本实验所用菌种主要为Acidithiobacillus caldus,Leptospirillum ferriphilum,Sulfobacillus acidophilus和Sulfobacillus thermosulfidooxidans等中度嗜热菌种的混合菌,纯菌菌株均由......
江西某铀矿堆浸尾渣微生物群落演替研究郭勤,苗瑾超,张宏举,王慧,高蕾新疆大学科学技术学院阿克苏校区摘 要:应用16Sr DNA基因文库技术研究了江西某铀矿堆浸尾渣冬季到次年夏季微生物群落演替情况.结果表面:冬季Acidimicrobium ferrooxidans占48.5%,Leptospirillum ferriphilum占17.5%,Xanthomonas albilineans占11.3%,Mycobacterium sp占7.2%,其它异养菌占15.5%.夏季Leptospirillum ferriphilum占87.40%,Nitrobacter winogradskyi占1%,其它异养菌占11.6%,Acidimicrobium ferrooxidans未检出.关键词:生......
