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Distribution of Iron- and Manganese-Oxidizing Bacteria in the Bottom Sediments of Lake Baikal

机译：贝加尔湖底部沉积物中铁和锰的氧化细菌的分布

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摘要

The specific features of the distribution, abundance, and taxonomic diversity of bacteria oxidizing iron and manganese in the bottom sediments sampled from different areas of Lake Baikal are studied. These bacteria are widespread in Baikal bottom sediments. Cultivated iron- and manganese-oxidizing microorganisms are ascribed to six genera: Metallogenium, Leptothrix, Siderocapsa, Naumaniella, Bacillus, and Pseudomonas. The surface layers of the ground and the border between oxidized and reduced sediments serve as ecological niches for iron- and manganese-oxidizing microorganisms. Redox conditions of the environment and the availability of dissolved forms of iron and manganese, as well as of organic matter, which are controlled by the conditions of sedimentation in the lake, are the main factors affecting the abundance and distribution of iron bacteria.
机译：研究了贝加尔湖不同区域底部沉积物中细菌氧化铁和锰的细菌的分布，丰度和分类学多样性的特定特征。这些细菌广泛分布在贝加尔湖底部沉积物中。栽培的铁和锰氧化微生物归因于六个属：成金属细菌属，Leptothrix，Siderocapsa，Naumaniella，芽孢杆菌和假单胞菌。地面的表层以及氧化和还原的沉积物之间的边界是铁和锰氧化微生物的生态位。环境中的氧化还原条件和铁，锰以及有机物的溶解形式的可用性受湖中沉积条件的控制，是影响铁细菌丰度和分布的主要因素。

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  • 来源
    《Inland water biology》 |2010年第4期|p.313-321|共9页
  • 作者

    Yu. R. Zakharova; V. V. Parfenova; L. Z. Granina; O. S. Kravchenko; T. I. Zemskaya;

  • 作者单位

    Limnological Institute, Russian Academy of Sciences, ul. Ulan-Batorskaya 3, Irkutsk, a/ya 4199, 664033 Russia;

    Limnological Institute, Russian Academy of Sciences, ul. Ulan-Batorskaya 3, Irkutsk, a/ya 4199, 664033 Russia;

    Limnological Institute, Russian Academy of Sciences, ul. Ulan-Batorskaya 3, Irkutsk, a/ya 4199, 664033 Russia;

    Limnological Institute, Russian Academy of Sciences, ul. Ulan-Batorskaya 3, Irkutsk, a/ya 4199, 664033 Russia;

    Limnological Institute, Russian Academy of Sciences, ul. Ulan-Batorskaya 3, Irkutsk, a/ya 4199, 664033 Russia;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    lake baikal; bottom sediments; iron- and manganese-oxidizing microorganisms;

    机译：贝加尔湖;底部沉积物铁和锰的氧化微生物;

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