Table 1.

Cell numbers in the primary root

	30µm			60 µm			120µm
	total
	stele	pericycle	inside	total stele	pericycle	inside	total stele	pericycle	inside	endodermis	cortex	epidermis
WT	33	11.5	21.5	41±1	13.33±1.5	27.67±1.5	41.67±.58	13±0	28.67±.58	8±0	8±0	24.3±2.1
lhw-1	19± 1.7	8.5±.55	10.5±1.5	20.33±1.5	8.5±.55	11.83±1.2	21.83±1.6	8.33±1.2	13.17±1.5	8±0	8±0	20.6±3.6
wol-1	16	8	8	19	9	10	19	9	10
lhw-1;wol-1	14±3	7.67±1.5	6.33±1.5	14.67±3.2*	8±1	6.67±2.3	15.33±2.9**	8±1	7.33±2.1

Number of roots scored/genotype: WT = 3, lhw-1 = 8, wol-1 = 2, lhw-1;wol-1 = 3.

Values are averages ± S.D. P values for difference between number of cells in lhw and lhw;wol stele = * P=.08;

^**P=.04