Biological efficiency of Pseudomonas fluorescens strains against pathogens of Brassicaceae black rot under controlled conditions

The bacterium Xanthomonas campestris pv. campestris causes black rot of cruciferous plants, the most harmful bacterial disease of a wide range of cole crops. Breeding for resistance to the pathogen is carried out considering the racial structure of the pathogen population discovered in 1992 and the race-specific resistance reaction in plants of the Brassicaceae family. The model describing the gene-to-gene relationship between the pathogen and plants does not consider biometric indicators associated with the pathogen' s effect on the suction, conducting, and photosynthetic systems of plants. In this paper, the effect of infestation of spring rape plants with Xanthomonas campestris races 1 and 6 on biometric indicators of plants important for crop formation is studied. A significant positive effect of the use of a preparation based on antagonistic bacteria Pseudomonas fluorescens (Binoram preparation) on the growth and stability of spring rape has been shown. © The Authors, published by EDP Sciences, 2023.