Table 2. Pi uptake kinetics in WT and transgenic plants under SP and LP conditions.

	WT	OE-4	OE-11	RNAi-20	RNAi-22
Imax (μmol l-1 h-1)
SP	2.80 ± 0.05 c	3.31 ± 0.05 a	3.15 ± 0.02 b	2.55 ± 0.03 d	2.54 ± 0.01 d
LP	7.00 ± 0.02 c	8.78 ± 0.03 a	8.20 ± 0.12 b	5.48 ± 0.02 e	6.58 ± 0.07 d
Cmin (μmol l-1)
SP	12.08 ± 1.38 c	12.11 ± 0.54 c	12.83 ± 1.15 c	29.81 ± 0.45 a	23.62 ± 2.03 b
LP	7.76 ± 1.02 c	1.83 ± 0.14 e	3.24 ± 0.44 d	15.5 ± 0.35 a	12.32 ± 1.03 b
Km (μmol l-1)
SP	21.41 ± 1.06 c	21.52 ± 0.42 c	21.97 ± 0.87 c	34.89 ± 0.30 a	29.82 ± 2.73 b
LP	18.36 ± 0.69 c	14.02 ± 0.08 d	15.04 ± 0.31 d	24.20 ± 0.39 a	20.01 ± 1.13 b