The ability of potassium-solubilizing fungi isolated from leucite potassium rock deposits

Abstract. Anwar AR, Ala A, Kuswinanti T, Syam’un E. 2022. The ability of potassium-solubilizing fungi isolated from leucite potassium rock deposits. Biodiversitas 23: 6579-6586. Present investigation was aimed to explore the potassium-dissolving some indigenous living in Indonesian tuffs volcanic members Camba Formation Barru Regency, South Sulawesi Province. There are no such findings on recent study strains rhizosphere vegetation found deposits using Alexandrov media. A total 22 fungal were and tested for their dissolve bound carrier minerals, qualitatively quantitatively. Production indole-3-acetic acid (IAA) gibberellic (GA3) also measured test fungus produce growth regulator compounds. Fungal isolates with highest dissolution index (IP) values MgT1Pb, RgGc, PT3Pe, PT3Pa, JbT2Pa, JbT2Pd, JbT2Pp. amount exchangeable (K-exch.) JbT2Pa 919.8 ppm MgT1Pb 69.33 ppm. isolate capable producing IAA PsT2Pe at 6.820 while RgGd resulted production GA3 hormone 4.116