EN
The article describes the classification of vesicular-arbuscular mycorrhizal fungi and their distribution amang legume plants. The results of investigations on the effect of joined inoculation of legume seeds with specific symbiotic bacteria (Rhizobium or Bradyrhizobium) and VAM fungi on growth, nodulation, N₂ fixation and yield of the host plantare discussed. Studies leading to the explanation of mechanisms of the VAM fungi beneficial influence on the symbiosis legume plants with Rhizobium or Bradyrhizobium are also discussed.