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. 2019 Mar 27;25(3):649–665. doi: 10.1007/s12298-019-00656-6

Table 1.

Dose-dependent effect of imbibitional oxidative stress (IOS) and chilling stress (ICS) on the efficacy of ascorbate–glutathione cycle [assessed in terms of accumulation of ascorbate, glutathione and activities of glutathione reductase (GR), monodehydroascorbatereductase (MDHAR) and dehydroascorbatereductase (DHAR)]

Treatment Ascorbate (µmol g−1 dm) Glutathione (µmol g−1 dm) Activities of ascorbate–glutathione cycle enzymes (Ug−1 dm h−1)
MDHAR DHAR GR
Untreated Control 67.5 ±  0.17 6.5 ± 0.04 0.56 ± 0.004 0.38 ± 0.002 0.325 ± 0.002
IOS (20 mM H2O2) 48.2 ±  ± 0.11** 4.3 ± 0.05* 0.39 ± 0.007* 0.27 ±  ± 0.004* 0.205 ± 0.001**
IOS (500 µM H2O2) 74.3 ± 0.19* 7.9 ± 0.07** 0.72 ± 0.004** 0.50 ± 0.007** 0.390 ± 0.004*
ICS 46.5 ± 0.21** 5.2 ± 0.03** 0.41 ± 0.004* 0.25 ± 0.001** 0.160 ± 0.001*

Results are mean of three replicates ± standard error. *Significant from control at 0.05 level (t test); **significant from control at 0.01 level (t test)