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首页> 外文期刊>Archives of Microbiology >Comparative study of nickel resistance of pure culture and co-culture of Acidithiobacillus thiooxidans and Leptospirillum ferriphilum
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Comparative study of nickel resistance of pure culture and co-culture of Acidithiobacillus thiooxidans and Leptospirillum ferriphilum

机译：硫代酸硫硫杆菌和费氏钩端螺旋体纯培养和共培养的镍抗性比较研究

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摘要

The effect of Ni2+ on the growth and functional gene expression of the pure culture and co-culture of Acidithiobacillus thiooxidans and Leptospirillum ferriphilum has been studied. Compared with the pure culture, the co-culture showed a stronger sulfur and ferrous ion oxidation activity. At 100 mM, A. thiooxidans in co-culture grew faster and had 48 h shorter lag phases. The cell number of A. thiooxidans in co-culture was about 5 times higher than that in pure culture. The existence of A. thiooxidans in co-culture activated the expression of some metal resistance genes in L. ferriphilum at least 16 h in advance. A. thiooxidans in co-culture tends to chose more efficient pathways to transport nickel ion, ensuring the export of heavy metal was faster and more effective than that in pure culture. All the data indicated that there were synergetic interactions between iron- and sulfur-oxidizing bacteria under the stress of Ni2+.
机译：研究了Ni2 +对硫代酸硫硫杆菌和费氏钩端螺旋体纯培养和共培养的生长和功能基因表达的影响。与纯培养相比，共培养显示出更强的硫和亚铁离子氧化活性。在100 mM时，共培养中的A. thiooxidans生长速度更快，并且延迟阶段缩短了48小时。共培养中的硫氧化物农杆菌的细胞数比纯培养物中的高约5倍。共培养物中硫代氧化单胞菌的存在至少提前16小时激活了费氏乳杆菌中某些金属抗性基因的表达。共培养中的A. thiooxidans倾向于选择更有效的途径来运输镍离子，从而确保重金属的出口比纯培养中的更快，更有效。所有数据表明，在Ni2 +胁迫下，铁氧化菌和硫氧化菌之间存在协同作用。

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  • 来源
    《Archives of Microbiology》 |2013年第9期|637-646|共10页
  • 作者

    Ying Xu; Huaqun Yin; Huidan Jiang; Yili Liang; Xue Guo; Liyuan Ma; Yunhua Xiao; Xueduan Liu;

  • 作者单位

    School of Minerals Processing and Bioengineering Central South University">(1);

    Key Laboratory of Biometallurgy Ministry of Education">(2);

    School of Minerals Processing and Bioengineering Central South University">(1);

    Key Laboratory of Biometallurgy Ministry of Education">(2);

    School of Minerals Processing and Bioengineering Central South University">(1);

    Key Laboratory of Biometallurgy Ministry of Education">(2);

    School of Minerals Processing and Bioengineering Central South University">(1);

    Key Laboratory of Biometallurgy Ministry of Education">(2);

    School of Minerals Processing and Bioengineering Central South University">(1);

    Key Laboratory of Biometallurgy Ministry of Education">(2);

    School of Minerals Processing and Bioengineering Central South University">(1);

    Key Laboratory of Biometallurgy Ministry of Education">(2);

    School of Minerals Processing and Bioengineering Central South University">(1);

    Key Laboratory of Biometallurgy Ministry of Education">(2);

    School of Minerals Processing and Bioengineering Central South University">(1);

    Key Laboratory of Biometallurgy Ministry of Education">(2);

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  • 正文语种 eng
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  • 关键词

    Acidithiobacillus thiooxidans; Leptospirillum ferriphilum; Nickel; Sulfur oxidation; Ferrous ion oxidation; RT-PCR; Functional gene analysis;

    机译：酸性硫氧杆菌硫氧化物;铁钩端螺旋体;镍;硫氧化;亚铁离子氧化;RT-PCR;功能基因分析;

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