Source data for "Diel light dynamics regulate arsenic methylation in cyanobacteria and in microbial mats"

Figure 1a: Raw optical density measurements (OD750) over time for cultures exposed to increasing concentrations of As(V) and As(III). Figure 4: Time-resolved concentrations of As(V), As(III), monomethylarsonic acid (MMA), dimethylarsinic acid (DMA), and dissolved oxygen following addition of ~30 µM or ~3000 µM As(V), under light and dark, oxic and anoxic conditions, and during a simulated diel cycle (As(V) added at 0 h).

Oxygen measurements include pre-injection baseline dynamics used for rate calculations in Figure 1b. Figure 5: Time-resolved concentrations of As(V), As(III), MMA, DMA, and dissolved oxygen following addition of ~30 µM or ~3000 µM As(III), under light and dark, oxic and anoxic conditions, and during a simulated diel cycle (As(III) added at 0 h). Oxygen measurements include pre-injection baseline dynamics used for rate calculations in Figure 1b.