Isolation and Characterization of Phosphate Solubilizing Fungi from Rhizospheric Soil of Paddy Crop Fields and their Functional Capacity

Abstract

The study’s purpose was to determine the most effective fungal isolates and growing conditions for sparing phosphorus release from soil. Based on their capacity to dissolve tricalcium phosphate, two fungal isolates were chosen from a total of 12. Aspergillus niger and Penicillium oxalicum were chosen because of their capacity to successfully produce a halo zone encircling colony on petri plates. The optimal activity of selected fungal isolates was discovered with a solubilization index (PSI) of 2.4, incubation durations of 7 days, and temperatures of 30°C. pH 7.0, pH 6.0, and pH 8.0 were the optimal conditions for phosphate solubilization in Aspergillus niger and Penicillium oxalicum..