Figure 6.
Differential cell growth rates during leaf development. A, Average RGRs of pavement (gPC) and guard cells (gGC). g’PC is the experimentally observed average RGR of small pavement cells from days 18 to 25. B, Experimental mean area of pavement and guard cells. C to E, Live imaging of epidermal cell growth in leaves. C, RGRs of pavement and guard cells on the abaxial epidermis of leaves 1 and 2 of 17-d-old plants over a period of 36 h. Red and blue lines indicate a logistic regression for guard and pavement cells, respectively. Colored dots represent data of individual pavement and guard cells depicted in sections D and E. D, Time-lapse observations of epidermal cell development over a 36-h interval. E, Time-lapse observation of guard cells over a 24-h interval. Scale bars = 25 μm.