Figure 10.

Root Phenotypes of the nakr1-1 Mutant.

(A) Confocal images of Col-0 and nakr1-1 primary roots at 7 DAG stained with propidium iodide. The smaller root meristematic zone of nakr1-1 compared with Col-0 is indicated. Bars = 50 μm.

(B) The lengths of fully elongated cortex cells were measured in Col-0 and nakr1-1. Data are presented as mean ± sd (n = 11 for Col-0 seedlings, and n = 7 for nakr1-1 seedlings).

(C) The size of the root meristem in Col-0 and nakr1-1 seedlings at 2 and 7 DAG was measured by counting the number of cells within the cortex cell files from the quiescent center to the first elongated cortex cell. Compared with Col-0, the size of the root meristem in nakr1-1 was reduced at 7 DAG. Data are presented as mean ± sd (n = 7 to 10 for seedlings analyzed at each time point).