POTENCY OF PHOSPHATE SOLUBILIZING MOLD FROM RHIZOSPHERE SOIL IN MANGROVE CENTER TUBAN, INDONESIATini Surtiningsih, Arina Putri Ramadhani, Dinda Rahmi Anindi, Ni’matuzahroh, Tri Nurhariyati and Fatimah
This research aims to isolate phosphate solubilizing mold from the rhizosphere soil of Mangrove Center Tuban, East Java, Indonesia which can be used in biofertilizer. All isolates were described based on macroscopic and microscopic morphological characteristics. The phosphate solubilizing activity was measured by growing the isolates on Pikovskaya medium and measuring the phosphate solubilization index after 3-7 days incubation. The results show that from 60 obtained isolates, 33 mold isolates showed phosphate solubilizing activity. Mold isolates which showed the highest phosphate solubilizing activity index are isolates K.32, K.43, and K.58 with phosphate solubilization index 1.58, 1.66, and 1. 23, respectively. mold isolates of K.32 and K.58 belong to genera of Aspergillus, while K.43 belongs to the Penicillium genera.