Soil and climatic conditions are factors influencing the composition and structure of microbial communities of various agrocenoses. Since microbiota plays a key role in the development of plant resistance to pathogens, studying its regional dynamics is of signifi cant scientific and practical interest. A comparative study of the microbiota of eggplant (Solanum melongena L., 1753) plants grown in diff erent soil and climatic conditions in the right- and left-bank areas of the Saratov Region was conducted. One hundred healthy leaf samples were microbiologically analyzed.