INFLUENCE OF ENDOPHYTIC SOYBEAN BACTERIA ON THE RHIZOBIUM-SOYBEAN SYMBIOS IS AND RHIZOSPHERE MICROBIAL COMMUNITY

Abstract

Aim. To study the efficacy of action of non-rhizobial endophytic bacteria of soybean on the symbiotic systems formation. Methods. Microbiological, acetylene-ethylene assay. Results. It was shown that the investigated strains of endophytic bacteria Paenibacillus polymyxa 1, Bacillus cereus 4 have positively impacted on the formation and overall nitrogenase activity of soybean symbiotic apparatus. Joint inoculation of P. polymyxa 1 or Brevibacillus sp. 5 with the production strain of nodule bacteria Bradyrhizobium japonicum in UKM-6035 increases the nitrogenase activity of the symbiotic system and stimulates the development of micro-organisms in the rhizosphere oligoazotrofnyh soybeans. Conclusions. Endophytic non-rhizobial soybeans bacteria and their compositions with nitrogen fixing nodule bacteria positively influence on growth and development of plants, rhizosphere microflora, respiration activity of soil microorganisms and nitrogenase activity of symbiotic system.

Keywords

• ендофітні бактерії
• bradyrhizobium japonicum
• paenibacillus polymyxa
• bacillus cereus
• brevibacillus sp.
• pseudomonas brassicacearum
• glycine max
• нітрогеназна активність
• симбіоз