One of the priority directions outlined in the Strategy for Scientific and Technological Development of the Russian Federation is to increase environmentally friendly agricultural production, which is consistent with the Strategy for the Development of Organic Production up to 2030. The use of microorganisms and preparations made on their basis can promote growth and increase crop productivity. The aim of the research is to analyze Russian and foreign literature and to identify the main mechanisms of interaction between bacteria of the genus Pseudomonas and plants. Pseudomonas are gram-negative rod-shaped aerobic non-spore-forming bacteria with rapid growth and high root colonization. They represent the largest group of PGPR organisms capable of living in various conditions. The most well-known species of the genus Pseudomonas useful for agricultural production include P. aeruginosa, P. chlororaphis, P. fluorescens, P. putida and P. syringe. Representatives of the genus Pseudomonas are ubiquitous in the soil ecosystem and are common inhabitants of the rhizosphere of various crops, where they play a major role in stimulating plant growth through various mechanisms. Based on the results of research by Russian and foreign authors, the following main mechanisms of plant-microbial interaction are identified in the framework of the review: suppression of the development of phytopathogenic fungi and/or bacteria (direct and indirect pathway of antagonism); synthesis of metabolites that influence the growth or development of aerial and underground organs (including phytohormones); increased availability of mineral components for plants (primarily phosphates); leveling of stress factors. In general, bacteria of the genus Pseudomonas have a high potential for agricultural production and can be used to create biological preparations for crop production with protective and growth-stimulating effects. The strains that are able to implement both functions simultaneously, while retaining high colonizing ability, will be of the greatest interest to the real sector
Keywords
PGPR, Pseudomonas, agricultural crops, growth, antagonism, phytohormones, phosphate solubilization