Figure 2. Inhibition of meristem cell proliferation in the kup9 mutants leads to the short‐root phenotype under low‐K⁺ conditions.

• A
  Root meristem zones of wild type (Col), kup9 mutants (kup9‐1 and kup9‐2), and the kup9‐1/ProKUP9:KUP9 complementation lines (COM1 and COM2). Seeds were germinated and grown on LK or HK medium for 7 days. The meristem zone lengths are marked with red lines. Scale bars, 50 μm.
• B–D
  represent different zone lengths, different zone cell numbers, and cell length of the indicated seedlings germinated and grown on LK or HK medium for 7 days. MEZ, meristem zone; EZ, elongation zone; MAZ, maturation zone. Data are means ± SE (n = 10–15, individual plants). Student's t‐test (**P < 0.01) was used to analyze statistical significance, and “#” represents the control.

Source data are available online for this figure.