Role of Pseudomonas fluorescence and Pseudomonas aeuroginosa on Antioxidant Parameters, Polyphenols and Total Flavonoids of Flouride (F) Hyperaccumulator Plant Prosopis juliflora under F Contaminated Soil

Abstract

Fluoride pollution is a world wide problem. The presence of the toxic F is critically harmful effects on human health and also the environment. Among existing strategies to remediate F contaminates in soils, phytoremediation approach using F accumulating plants is much convincing in terms of F removal efficiency, but it has many limitations because of slow plant growth and decreased biomass under Finduced stress. Plant Growth Promoting Rhizobacteria (PGPR) play important role in agricultural systems, especially as biofertilizer. Therefore, two rhizobacterial strains Pseudomonas fluorescence and Pseudomonas aeuroginosa were used to determine the effects of inoculation on growth and antioxidant activity of Prosopis juliflora plants under F stress. These two strains, increases growth and uptake of F. Further, increase of superoxide dismutase, catalase and peroxidase activity was also recorded. Pseudomonas fluorescence significantly increases the biomass in comparison to Pseudomonas aeuroginosa. Present study suggests that the two PGPR strains may be used to improve the soil quality of F contaminated soil.