Solubilized P, dry biomass, pH and titratable acidity in NBRIP medium with Araxá RP (3 g L⁻¹) as the only P source, Ca₃(PO₄)₂ (5 g L⁻¹) + F⁻ (50 mg L⁻¹), or Ca₃(PO₄)₂ (5 g L⁻¹) a

Means followed by the same letter are not significantly different according to the Tukey’s test (P<0.05). aWT: Aspergillus niger FS1 wild type. bMutant with a significant decrease in P solubilization potential (negative mutant). Solubilized P, dry biomass, pH and titratable acidity in NBRIP medium with Araxá RP (3 g L−1) as the only P source, Ca3(PO4)2 (5 g L−1) + F− (50 mg L−1), or Ca3(PO4)2 (5 g L−1) after the cultivation of Aspergillus niger FS1 mutants and the wild type for 60 h at 32°C and 160 rpm.