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. 2021 Aug 12;12:705896. doi: 10.3389/fmicb.2021.705896

FIGURE 5.

FIGURE 5

Solubilization of insoluble minerals in agar media by the mineral-solubilizing fungi (A) and solubilization index of the ability to solve insoluble minerals (B,C). Error bars represent the standard deviation of the mean. The different letters indicate significant difference (p ≤ 0.05). A. chiangmaiensis SDBR-CMUI4 on basal medium contained of Ca3(PO4)2 (a), CaCO3 (b), CoCO3 (c), CuCO3⋅Cu(OH)2 (d); A. pseudopiperis SDBR-CMUI1 on basal medium contained CuO (e), FePO4 (f), MgCO3 (g), MnO (h); A. pseudotubingensis SDBR-CMUO2 on basal medium contained ZnCO3 (i), ZnO (j), feldspar (k), kaolin (l). Scale bars: (a–l) 10 mm. Fungal colony in h was cut for observing a solubilization area (halo zone) beneath the fungal colonies.