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Microbiology

, Volume 81, Issue 1, pp 98–108 | Cite as

Thermotolerant and thermophilic actinomycetes from soils of Mongolia desert steppe zone

  • A. I. Kurapova
  • G. M. ZenovaEmail author
  • I. I. Sudnitsyn
  • A. K. Kizilova
  • N. A. Manucharova
  • Zh. Norovsuren
  • D. G. Zvyagintsev
Experimental Articles

Abstract

In the actinomycete complexes of Mongolian desert soils, thermotolerant and thermophilic actinomycetes were found in high abundance, exceeding that of the mesophilic forms. Among the thermotolerant members of the order Actinomycetales, Streptomyces, Micromonospora, Actinomadura, and Streptosporangium species were most widespread in desert soils. Experiments with soil microcosms demonstrated that thermophilic actinomycetes in desert soils grew, developed, and formed mycelia of the length comparable to that of the mesophilic forms of actinomycetes. Molecular biological investigation of the samples of desert steppe soils by denaturing gradient gel electrophoresis (DGGE) and fluorescent in situ hybridization (FISH) revealed members of the phylum Actinobacteria. FISH analysis revealed that the biomass of the metabolically active mycelial actinobacteria in the prokaryotic community of Mongolian desert soils exceeded that of the unicellular Actinobacteria.

Keywords

thermotolerant and thermophilic actinomycetes metabolically active mycelial actinobacteria actinomycete complexes desert soils 

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Copyright information

© Pleiades Publishing, Ltd. 2012

Authors and Affiliations

  • A. I. Kurapova
    • 1
  • G. M. Zenova
    • 1
    Email author
  • I. I. Sudnitsyn
    • 1
  • A. K. Kizilova
    • 2
  • N. A. Manucharova
    • 1
  • Zh. Norovsuren
    • 3
  • D. G. Zvyagintsev
    • 1
  1. 1.Moscow State UniversityMoscowRussia
  2. 2.Winogradsky Institute of MicrobiologyRussian Academy of SciencesMoscowRussia
  3. 3.Institute of BiologyMongolian Academy of SciencesUlan BatorMongolia

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