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Emerging plant pathogens in Russia.
A. IGNATOV (1), V. Dubovoy (1), N. Zhemchuzhina (1), S. Abramova (1), A. Makarov (1). (1) Russian Research Institute of Phytopathology, Moscow, Russia

Russia had a population of plant pathogenic microorganisms adapted to its unique climate, today it is threatened by many pathogens that were recently introduced with imported plants. Under circumstances of climate changes, the pathogens found favorable conditions for establishment in local eco-niches. Most of them are bacteria that are already affecting Russian agriculture. A number of plant pathogens increased their presence on crop plants across different regions of Russia, including bacteria <i>X. arboricola</i>, <i>X. gardneri</i>, <i>X. hortorum</i>, <i>Pseudomonas syringae</i>, <i>Dickeya dianthicola</i>, <i>D. solani</i>, <i>Clavibacter michiganensis</i> subsp. <i>michiganensis</i>, toxicogenic <i>Alternaria</i> spp. and <i>Fusarium</i> spp. We have sequenced a number of key genes for MLST analysis in the isolates of bacteria and fungi that have been recently recognized in Russia as emerging plant pathogens. Correlating their phylogeny based on MLST and geographic location of isolation, we are reconstructing their routes of further spread. Comparing allelic differences, we also studied their recent evolution in regard to their adaptation mechanisms in order to identify targets for their detection and diagnostics. This work was a part of genetic study of microbes stored at the State Collection of Plant Pathogenic Microorganisms in RRI of Phytopathology. This work was supported by ISTC projects #2685 and 3431.<p><p>Keywords: NA

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