Figure 5

Effect of PAR on cell growth during the interdivision phase. Light intensities are as indicated (PAR values are in m^-2 s^-1), these were the same as in Figure 4. White arrowheads indicate the beginning of the division phase. The dashed line shows the critical cell size for entering the division phase relative to the initial cell volume (4.0 ± 1.0, ± SD).