Haloalkaliphilic actinomycetes in soils of Mongolian desert steppes |
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Authors: | Zh. Norovsuren G. V. Oborotov G. M. Zenova R. A. Aliev D. G. Zvyagintsev |
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Affiliation: | (1) Russian State Agrarian University-Timiryazev Agricultural Academy, Timiryazevskaya ul. 50-9, Moscow, 127550, Russia;(2) Faculty of Soil Science, Moscow State University, Vorob’evy gory, Moscow, 119992, Russia;(3) Lenkoran State University, Leninskii pr. 4, Lenkoran, 234750, Russia |
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Abstract: | The abundance of actinomycetes isolated from the soils of Mongolian desert steppes varies from several thousand to hundreds of thousands of CFU/g soil, depending on soil type and isolation medium. Eight actinomycete genera have been found in these soils: Streptomyces, Micromonospora, Saccharopolyspora, Actinomadura, Microtetraspora, Thermomonospora, Nocardia, and Dactylosporangium. The streptomycete complexes of brown desert-steppe and gray-brown desert alkaline soils include halophilic, alkaliphilic, and haloalkaliphilic species that grow most successfully on the media with a salt concentration of 5% and pH 8–9. |
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