DNEPROVSKAYA A.A., ANANEV A.A., NITYAGOVSKY N.N., PRIMAK N.S., KISELEV K.V., ALEYNOVA O.A.
Applied biochemistry and microbiology 2026; 62(3): 415–427
The structure and composition the community of cultivated endophytic spruce bacteria Picea jezoensis (Siebold & Zucc.) Carriere was established and the antagonistic activity of the main endophytic spruce bacteria P. jezoensis against common plant pathogens was analyzed. The microbiome of P. jezoensis spruce is represented by 4 class-level taxa: Alphaproteobacteria, Actinobacteria, Gammaproteobacteria, and Bacilli. Bacterial representatives of the genus Bacillus, Pseudomonas, and Erwinia have been found to have antagonistic activity against two widespread and dangerous phytopathogenic fungi Pyricularia oryzae and Fusarium sp. The strains that showed antagonistic activity had proteolytic activity, and the R7PJV2-12 strain, which showed a high antagonism index, was able to produce chitinase. The results of this study can become the basis for the development of new, environmentally friendly ways to control phytopathogens and increase plant resistance to diseases, which can be used in forestry and agriculture.
