Table 1. Cytokinin content (ng/gFW) in wild-type and pls mutant seedlings.

	iPA	ZOG	ZROG	DHZR	iP	Z	iPMP	ZR	Z7G	Z9G	ZMP	DHZ
DHZ, dihydrozeatin; DHZR, dihydrozeatin riboside; iP, isopentenyladenine; iPMP, isopentenyladenine-5′-monophosphate; Z, zeatin; Z7G, zeatin-7-glucoside; Z9G, zeatin-9-glucoside; ZMP, zeatin riboside-5-monophosphate; ZOG, zeatin-O-glucoside; ZR, zeatin riboside; ZROG, zeatin riboside-O-glucoside.
s.d. represents the standard deviation of the means of five independent biological replicate assays. pls/wt represents the ratio of cytokinin content in the pls vs wild-type seedling.
wt	0.80	6.80	1.65	0.18	0.14	0.24	9.93	4.33	21.79	8.06	13.68	ND
s.d.	0.18	0.43	0.11	0.02	0.02	0.05	1.47	0.31	2.02	0.83	1.83
pls	0.72	7.14	1.92	0.21	0.18	0.34	14.94	7.50	38.16	14.86	47.30	ND
s.d.	0.11	1.57	0.40	0.02	0.02	0.06	2.73	0.85	4.75	2.94	5.04
pls/wt	0.90	1.05	1.16	1.17	1.29	1.42	1.50	1.74	1.75	1.84	3.46