Table 3 Membrane damage, SPAD, relative leaf water content and cellular reduction ability for plants grown at varying salt stress for 48 h treated with 0.5 mM γ- aminobutyric acid (GABA) or left untreated.

From: γ-Aminobutyric Acid Imparts Partial Protection from Salt Stress Injury to Maize Seedlings by Improving Photosynthesis and Upregulating Osmoprotectants and Antioxidants

Treatment

Membrane damage (%)

SPAD value

Relative leaf water content (%)

Cellular reduction ability (OD 485/50 mg FW)

0 mM NaCl

21.4 ± 0.76d

14.2 ± 1.17a

96.54 ± 1.05a

0.41 ± 0.04a

150 mM NaCl

27.9 ± 4.91ab

11.1 ± 0.66b

84.91 ± 4.54c

0.35 ± 0.04b

300 mM NaCl

30.3 ± 1.23a

8.5 ± 1.59c

73.03 ± 0.75d

0.24 ± 0.03c

0 mM NaCl + 0.5 mM GABA

22.4 ± 2.41 cd

14.7 ± 1.91a

94.82 ± 1.31a

0.44 ± 0.01a

150 mM NaCl + 0.5 mM GABA

23.6 ± 1.88 cd

13.1 ± 0.5a

89.02 ± 0.87b

0.41 ± 0.02a

300 mM NaCl + 0.5 mM GABA

25.7 ± 1.45bc

9.7 ± 0.75bc

75.75 ± 0.51d

0.26 ± 0.03c

  1. Values are mean ± SE. Values with the same letters in a column are not significantly different at P = 0.05 (LSD test).