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. 2019 Apr 17;20(8):1909. doi: 10.3390/ijms20081909

Figure 1.

Figure 1

Image of Gram-negative rod-shaped cells of the S17 isolate under light microscopy (A). Clear halo-zone of phosphate solubilization around the S17 isolate colony on a Pikovskaya (PVK) modified medium after 48 h of inoculation at 20 °C (B). Orange halo-zone around the colony of S17 isolate after 24 h of inoculation at 20 °C on the chrome azurol S blue medium (C).