Figure 4.

Respiratory characteristics (expressed on a cell protein basis) of wild-type (white bars) and AS8 antisense tobacco cells (shaded bars) grown in complete or low-P medium for 5 d. A, Respiration rate of cells, defined as the rate of O₂ uptake in the absence of any additions. B, Respiratory capacity of cells, defined as the rate of O₂ uptake by cells in the presence of 1 μm FCCP. C, AOX capacity of cells, defined as the rate of CN-resistant and SHAM-sensitive O₂ uptake by cells. Data are the averages ± se from six independent experiments on different subcultures of cells.