Abstract
Bacillus subtilis Ch-13 industrial strain was shown to have a wide spectrum of antagonistic activities against different species of phytopathogenic fungi and bacteria. The B. subtilis Ch-13 strain produces lytic enzymes; cyanide and other antifungal metabolites; stimulates plant growth, producing phytohormones—auxin derivatives. This strain by 2.5 times reduced the quantity of tomato plants infected with phytopathogenic fungus Fusarium oxysporum during inoculation. Fungi abundance on roots with bacterial inoculation was 6.9 times less than in the absence of inoculation. The application of detected antifungal metabolites as biochemical markers for the strain enables to control the stability of physiologic and biochemical characteristics of the producer, and ensures a rapid quality assay of biopreparations with high performance liquid chromatography (HPLC).
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Original Russian Text © V.K. Chebotar’, N.M. Makarova, A.I. Shaposhnikov, L.V. Kravchenko, 2009, published in Prikladnaya Biokhimiya i Mikrobiologiya, 2009, vol. 45, No. 4, pp. 465–469.
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Chebotar’, V.K., Makarova, N.M., Shaposhnikov, A.I. et al. Antifungal and phytostimulating characteristics of Bacillus subtilis Ch-13 rhizospheric strain, producer of bioprepations. Appl Biochem Microbiol 45, 419–423 (2009). https://doi.org/10.1134/S0003683809040127
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DOI: https://doi.org/10.1134/S0003683809040127