Influence of Methyl Jasmonate and Salicylic Acid as Components of the Cultivation Medium for Rhizobium on Formation of Different-Efficiency Symbiotic Systems Glycine max — Bradyrhizobium japonicum

Phytohormones are important in the main pathways of transduction symbiotic signals between macro- and microsymbionts, understanding their participation integration with other metabolic pathways, including prooxidant-antioxidant systems, is crucial formation different-efficiency systems. Aim. To investigate effect salicylic acid (SA, 50 μM) methyl jasmonate (MJ, 0.75 as components cultivation media different activity virulence rhizobia 604k B1-20 on peculiarities systems terms intensity catalase, well course nodulation nitrogen fixation. Methods. Microbiological (cultivation nitrogen-fixing microorganisms, seed inoculation), physiological (vegetation experiment), biochemical (spectrophotometry, gas chromatography), statistical. Results. It was found that use SA (50 an additional component culture medium active Tn5-mutant for inoculation induces increased levels peroxide production catalase soybean roots early stages symbiosis, which contributes to effectiveness its apparatus. Addition MJ (0.75 does not affect changes content roots, however, stimulates processes reduces has been shown modification inactive highly virulent strain using or change leads increase during ineffective system activation processes. Conclusions. When (604k B1-20), differences were recorded functioning pro-antioxidant particular, peroxides complexes, at Glycine max — Bradyrhizobium japonicum, affects