Table 2.

Characterization of glutathione and ascorbate status of control and salt-stressed sugar beet plants

The first analysis was done 3 h after reaching a concentration of 300 mM NaCl. Data are means ±SD of n=5 experiments with two technical replicates for glutathione and ascorbate. The significant difference was calculated using Student’s t-test and labelled with different letters after analysis with Fisher LSD test, with P<0.05, using InfoStat statistical software.

Time (h)	GSH (µmol g-1 FW)		GSSG (µmol g-1 FW)		ASC (µmol g-1 FW)		DHA (µmol g-1 FW)
	Control	Stress	Control	Stress	Control	Stress	Control	Stress
3	1.83 ± 0.27 a	1.77 ± 0.31 a	0.39 ± 0.12	0.50 ± 0.12	1.65 ± 0.16 d	1.57 ± 0.18 d	0.34 ± 0.19	0.32 ± 0.09
27	1.70 ± 0.28 a	1.69 ± 0.31 a	0.46 ± 0.11	0.39 ± 0.08	1.74 ± 0.19 d,e	1.42 ± 0.07 b,c	0.25 ± 0.12	0.28 ± 0.09
51	1.59 ± 0.38 a	1.57 ± 0.34 a	0.38 ± 0.12	0.44 ± 0.11	1.76 ± 0.15 d,e	1.52 ± 0.13 c,d	0.21 ± 0.11	0.22 ± 0.10
123	1.60 ± 0.26 a	1.41 ± 0.27 a	0.34 ± 0.15	0.32 ± 0.09	1.73 ± 0.16 d,e	1.32 ± 0.15 b	0.25 ± 0.17	0.26 ± 0.11
171	1.63 ± 0.29 a	1.33 ± 0.21 a	0.31 ± 0.18	0.37 ± 0.11	1.57 ± 0.08 d	1.34 ± 0.06 b	0.18 ± 0.11	0.23 ± 0.10
339	1.65 ± 0.16 a	1.21 ± 0.11 b	0.29 ± 0.12	0.25 ± 0.09	1.54 ± 0.15 d	1.25 ± 0.05 a	0.21 ± 0.11	0.16 ± 0.08