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. 2020 Feb 8;8(2):226. doi: 10.3390/microorganisms8020226

Figure 4.

Figure 4

Growth of strain H21 in PDA with different concentrations of lead. (a) 500 ppm and (b) 700 ppm. Notice the translucent halo formed around the colony. Picture was taken after 8 days of incubation at 28 °C.