Figure 3.
Threshold values of cell aspect ratio gc, as a function of pressure p, for changes in the correlation pattern between variations of different surfaces. As demonstrated by the shapes in the insets, below the boundary (the red line), changes in the apical and basal lengths show a negative correlation; above the boundary, the changes of apical and basal lengths display a positive correlation. The ⊗ symbols denote the g and p values for the cells analyzed in Fig. 2. The sheets are unstable in the hatched region. To see this figure in color, go online.