Figure 4.

Stomatal patterning defects in kob1-3. The kob1-3 mutation increases the stomatal index in adaxial epidermis of cotyledons (C) but does not result in stomata clustering in either abaxial (B) or adaxial (D) epidermis. In erl1 erl2 and tmm backgrounds, kob1-3 increases the stomatal index (A, C, and E) and stomata clustering (B, D, and F) in both abaxial and adaxial epidermis. Values are means ± sd. For measurements, we used cotyledons from six 17-d-old seedlings. Abaxial epidermis (A and B) and adaxial epidermis (C and D) data are shown. The total number of epidermis cells counted was between 1,121 and 1,864 for A and C and between 554 and 952 for E. The total number of stomata counted was between 168 and 652. wt, Wild type.