Figure 1.

Effect of Na₂SeO₃ treatment on E. coli cell growth and selenite reduction. The number of bacterial cells under 0 to 125 mM Na₂SeO₃ treatments (a) and 0 to 30 mM Na₂SeO₃ treatments (c). The experiment was performed with three biological replicates and each Na₂SeO₃ treated sample was analyzed in triplicate. Data plotted was the average of cell numbers ± SD. A representative of change in color of cultures treated with 0 to 125 mM Na₂SeO₃ (b) and 0 to 30 mM Na₂SeO₃ (d). *P ≤ 0.05.