| Popis: |
This study included testing the production of Rhizobia isolates for external polysaccharides, and the isolates showed mixed results among them, as some isolates outperformed others in the rate of production, and also tested the effect of titanium dioxide on the production of exopolysaccharides for Rhizobia isolates, and the results showed that nanomaterials have an effect There was a significant increase in the rate of production of exopolysaccharide, while the higher the concentration, the rate of production decreased significantly. The size and shape of the nanoparticles were diagnosed using SEM examination and visible spectroscopy to ensure that the nanoparticles of dioxide are within the nanoscales. |
