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SM ISO690:2012 BURTSEVA, Svetlana, BYRSA, Maxim, BOUEVA, Olga, STARODUMOVA, Irina, EVTUSHENKO, Lyudmila, IURCU-STRĂISTARU, Elena. Antimicrobial and plant growth promoting properties of Streptomyces strains isolated from soils in Republic of Moldova. In: Analele Universitatii din Oradea, Fascicula Biologie, 2019, vol. 26, pp. 73-78. ISSN 1224-5119. |
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Analele Universitatii din Oradea, Fascicula Biologie | |
Volumul 26 / 2019 / ISSN 1224-5119 | |
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Pag. 73-78 | |
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Three strains with antifungal, antibacterial, and plant growth-promoting activities were isolated from soils of the Republic of Moldova. Taxonomic study of these strains showed that strain 33 belongs to the species Streptomyces plicatus, while strains 9 and 66 could not be assigned to any known species and most likely represent two novel species of the genus Streptomyces. Streptomyces plicatus completely inhibited growth of A. alternata, Streptomyces sp. 9 inhibited growth of three species of genus Fusarium (growth inhibition zones between 28.0-34.0 mm), S. plicatus 33-only F. graminearum (30.2 mm) and antifungal activity of strain Streptomyces sp. 66 was lower. All studied strains inhibited growth of phytopathogenic bacterium C. michiganensis (22.7-30.0 mm), strains Streptomyces spp. 9 and 33-X. campestris (16.2-30.0 mm). Aqueous solutions of exometabolites of the studied strains actively increased the length of roots (by 271.32-348.84 %) and gained its weight (by 18.98-80.75 %) in dependence of concentration and belonging to strain. |
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Cuvinte-cheie antifungal and antibacterial activity, exometabolites, length of roots, Streptomycetes, Weight of roots, winter wheat |
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