Fig. 3From: An automated oxystat fermentation regime for microoxic cultivation of Magnetospirillum gryphiswaldenseTEM micrographs of cells grown under a oxic (95% dO2, scalebar 1 µm), b microoxic (1% dO2, scalebar, 500 nm) and b anoxic (0% dO2, scalebar 1 µm) conditions. Growth and substrate consumption triplicates at dO2 tensions of 95% (red), 1% (orange) and 0% (blue). d Growth by OD565. e Lactate concentration in mM. f Nitrate concentration in mM. g Magnetic response Cmag. h Iron content of the cell pellet in µg mg −1dw Back to article page