[Synthesis of extracellular phythohormones by Bacillus strains isolated from different ecological sources].

Synthesis of extracellular phytohormones by bacteria strains of the genus Bacillus isolated from different ecological sources (soil and plant) has been researched. It has been shown that phytohormone's synthesis ability of the endophytic and free-living Bacillus strains is significantly different as regards the level and spectrum of synthesized compounds. It was concluded that such differences in synthesis of extracellular phytohormones by bacilli are associated with different type of interactions between the studied microorganisms and host plant.