Figure 4 | Scientific Reports

Figure 4

From: Addition of anaerobic electron acceptors to solid media did not enhance growth of 125 spacecraft bacteria under simulated low-pressure Martian conditions

Figure 4

Effects of the different anaerobic electron acceptors on the growth of Serratia liquefaciens on TSA, TSA + vitamins, TSA + nitrate, TSA + sulfate, and TSA + Fe3+, pH 7 at low-PTA conditions. Samples were taken at different incubation times up to 28 days. Cells were applied to the agar plates as multiple, 2.5-µL drops (~ 2.5 × 105 cells/drop), squares of agar/cells were cut out, and subsequent MPN assays completed to estimate the numbers of viable cells over time. The data are reported as log10 (N/N0) in which N0 = viable cell numbers at T = 0 and N = viable cell numbers at a specific time-step between 3 and 28 days (n = 6; error bars are standard deviations).

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