Fig. 3

Inefficient cell proliferation in nsn1 root. a Longitudinal sections of the primary root from 10-day-old wild type and nsn1. Illustration of the tissue organization of the Arabidopsis primary root apex (left in color) was adapted from [42]. Arrowhead indicated the cortex cells in elongation zone. Scale bar: 100 μm. b Statistical analysis of cell numbers in the root meristem region of 10-day-old plants. c Comparison of the dynamics of the primary root length in wild type and nsn1 within the first week after germination. d Analysis of the daily cell production rate in the primary root of wild type and nsn1. The number of cortex cells at the root tip including elongation and cell division zones was counted under microscope daily from the 4th day to the 10th day after germination. Cortex cells on one side as indicated by arrowheads in (a) were calculated