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. 2021 Jul 17;10(7):1469. doi: 10.3390/plants10071469

Table 3.

Effects of different NaCl concentrations on the photooxidation of P700 in leaves of sorghum (Sorghum bicolor L. Shamal) and maize (Zea mays L. Kerala). The far-red-light-induced steady-state oxidation of P700 (ΔA/A) and the fast and slow rate constants (k1 and k2, respectively) of the P700+ dark reduction in leaves are presented.

Variant k1 k2 ΔA/A
Shamal
Control
50 mM NaCl
150 mM NaCl
200 mM NaCl
250 mM NaCl		 0.357 ± 0.033 B
0.376 ± 0.041 B
0.572 ± 0.065 A
0.502 ± 0.027 A
0.512 ± 0.038 A 		0.046 ± 0.005 A,B
0.058 ± 0.004 A
0.040 ± 0.003 B
0.045 ± 0.004 A,B
0.022 ± 0.001 C 		12.3 ± 0.6 A
12.7 ± 0.8 A
11.8 ± 0.2 A
11.5 ± 0.4 A
7.8 ± 0.8 B
Kerala
Control
50 mM NaCl
150 mM NaCl
200 mM NaCl
250 mM NaCl		 0.349 ± 0.036 a,b
0.395 ± 0.032 a
0.312 ± 0.041 a,b
0.261 ± 0.027 b
0.235 ± 0.026 b 		0.039 ± 0.004 a,b
0.045 ± 0.005 a
0.032 ± 0.002 b,c
0.024 ± 0.004 c
0.028 ± 0.002 b,c 		12.8 ± 0.5 a
11.5 ± 0.4 a
11.6 ± 0.5 a
9.3 ± 0.5 b
7.1 ± 0.6 c

Mean values (± SE) were calculated from 8 independent measurements. Different letters indicate significant differences between different NaCl concentrations for the respective parameters at p < 0.05 (uppercase for sorghum and lowercase for maize).