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. 2021 Jul 15;6(29):18823–18835. doi: 10.1021/acsomega.1c02046

Figure 1.

Figure 1

(A) Effect of coumarin on the violacein production in C. violaceum 12472. The combined df and F values are 5 and 121.945, respectively. (B) Effect of coumarin on the prodigiosin production and exoprotease activity S. marcescens MTCC 97. The combined df and F values for prodigiosin production are 4 and 248.452, respectively. The combined df and F values for exoprotease activity are 4 and 145.625, respectively. Different letters above the error bars represent different significance groups by the Tukey test at p-value = 0.05. Data are represented as mean values of triplicate readings, and the bar is standard deviation. The percent inhibition is shown on the secondary y-axis. (C) Swarming motility of S. marcescens MTCC 97. (i) Untreated control, (ii) 62.5, (iii) 125, and (iv) 250 μg/mL.