Table I.

Hypocotyl and root cell lengths in DKO and wild-type plants

Characters Measured	DKO Plantsa		Wild-Type Plants
	10-d-Old	13-d-Old	10-d-Old	13-d-Old
Hypocotyl cortex length	16.7 ± 4.9b	12.9 ± 4.8	27.5 ± 7.9	24.0 ± 5.5
Root cortex length	11.6 ± 2.1	8.8 ± 1.7	10.3 ± 1.6	11.7 ± 3.2c

^aDKO = apy1; apy2; DEX: APY2.

^bAll numbers are mean ± sd in micrometers. Numbers in bold indicate DKO values that are significantly smaller than same-age/cell-type values of wild-type plants (P ≤ 0.05; n ≥ 9 for all hypocotyl and root values unless otherwise noted).

^cn = 3.