Figure 5.

GSL8 is required for stomatal and epidermal patterning. A, Developing wild-type epidermis showing distributed asymmetric divisions and relative uniformity in cell size. B to E, Developing gsl8 epidermis of leaves and cotyledons. Stars indicate clusters of developing or mature stomata or of three adjacent meristemoids in the lower part of B. Arrows in D and E indicate regions containing abnormally high numbers of small cells. Ten-day-old plants were used. All images show cell walls stained with propidium iodide and visualized by confocal microscopy. All propidium iodide images have inverted gray scales. Bars = 25 μm.