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Fig. 4 | Microbial Cell Factories

Fig. 4

From: An automated oxystat fermentation regime for microoxic cultivation of Magnetospirillum gryphiswaldense

Fig. 4

a Transmission electron micrographs of representative cells (scale bar 200 nm) and magnetosome particle sizes under anoxic (0% dO2) conditions at different timepoints of the process. Seed-train = 0 h (n = 2925), mid-growth = 15 h (n = 3069) and end of growth = 20 h (n = 3058). b Transmission electron micrographs (scale bar 1 µm (left micrograph) and 200 nm) and magnetosome particle sizes under microoxic (1% dO2) conditions at different timepoints of the process. Seed-train = 0 h (n = 3421), mid-growth = 14 h (n = 2267) and end of growth = 18 h (n = 3180). In box plots, the box indicates the interquartile range, the bar indicates the median, and the red dot represents the mean. Grey dots represent data points above or below the 95th and 5th percentile. The violin plots show the magnetosome particle size distribution of measured particle sizes. For statistical comparison of particle sizes, Wilcoxon rank sum test was performed (****, p < 0.0001; ns, not significant)

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