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Table 3 The activities of POD enzyme in non-transgenic (NT) and transgenic (SC) potatoes during and after stress

From: Enhanced tolerance of transgenic potato plants expressing choline oxidase in chloroplasts against water stress

PEG treatments Potato type POD activity (units / mg protein)
Stress period Recovery period
DAY 0 DAY 1 DAY 2 DAY 3 DAY 4 DAY5
Control (0% PEG) SC 9.18±0.672 9.22±0.55 8.81±0.84 9.21±0.73 9.11±0.71 8.79±0.57
NT 8.57±0.98 9.03±0.95 9.52±0.65 9.38±0.42 9.0±0.73 9.25±0.66
Moderate stress (10% PEG) SC 8.37±0.52 12.86±2.21 18.76±4.47 24.84*±5.44 18.6±4.75 9.67*±2.48
NT 9.2±0.86 16.44±3.86 21.3±5.33 28.16±4.16 20.78±4.22 12.07±5.61
Severe stress (20% PEG) SC 8.84±0.69 15.51±3.26 24.07*±4.27 30.38*±5.48 25.76±4.85 13.2±3.15
NT 9.25±1.25 19.83±4.36 28.72±4.21 35.81±6.88 27.39±4.62 15.56±2.48
  1. Data are expressed as the mean of five replicates. Asterisks (*) represent significantly different (P < 0.05) with the NT.