. 2014 Apr 2;9(4):e93935. doi: 10.1371/journal.pone.0093935

Table 2. Comparison of salt tolerance between the IbNFU1-overexpressing sweetpotato plants and wild-type plants.

Plant lines	Proline content (μg g⁻¹ FW)	SOD activity (U g⁻¹ FW)	MDA content (nM g⁻¹ FW)
L41	66.51±1.12^** ^a	553.51±2.63^**	9.42±0.16^**
L4	62.85±1.38^**	526.37±3.67^**	11.72±0.16^**
L5	60.63±2.55^**	488.20±3.12^**	8.84±0.12^**
L27	59.93±1.52^**	540.53±0.78^**	6.90±0.23^**
L24	59.02±2.47^**	447.09±2.76^**	9.87±0.31^**
L32	58.27±1.89^**	369.33±5.90^**	12.82±0.06^**
L15	58.21±1.17^**	382.57±7.55^**	13.87±0.27
L35	58.21±2.39^**	375.87±2.13^**	14.76±0.34
L6	57.99±1.08_**	368.88±1.36^**	12.37±0.25^**
L19	55.37±1.09^**	429.53±2.66^**	13.16±0.14^**
L40	54.56±1.85^**	357.45±6.44^*	13.72±0.28
L39	53.69±1.46^**	361.69±4.56^**	13.10±0.05^**
L16	53.24±0.84^**	362.51±0.43^**	13.31±0.19^**
L13	52.80±0.47^**	368.52±4.48^**	13.73±0.14^*
L12	51.87±1.26^**	444.20±5.51^**	13.60±0.07^**
L2	50.26±1.07^**	356.73±5.13^**	14.16±0.18
L37	50.10±1.79^**	358.82±3.21^**	14.04±0.13
L26	48.47±1.57^**	343.32±3.67^*	14.66±0.12
L1	48.35±2.29^*	345.14±1.27^*	14.25±0.06
L33	46.71±2.84^*	320.68±9.48	13.84±0.28
L25	46.45±2.92^*	416.38±4.49^**	13.41±0.06^**
L9	46.34±2.04^*	336.25±3.30	13.38±0.24^*
L31	44.23±1.01^*	362.74±5.9^**	14.05±0.07
L34	43.55±2.02^*	340.87±1.24^*	14.55±0.11
L3	41.13±2.63	320.98±2.26	14.94±0.16
L28	40.31±2.07	336.11±8.78	14.72±0.05
L42	40.10±1.77	361.08±7.53^*	12.82±0.25^**
L7	40.10±1.16	326.88±7.43	14.51±0.10
L38	39.30±0.58	352.81±0.50^**	13.79±0.08^*
L8	39.30±0.58	328.74±5.07	14.58±0.02
L14	39.18±1.18	353.53±5.77^*	14.09±0.07
L36	38.20±2.19	361.13±7.06^*	13.64±0.18^*
L10	36.78±2.16	319.00±4.23	16.57±0.19
WT	34.43±2.43	320.20±5.67	15.06±0.21
L20	34.16±1.03	303.57±0.11	13.85±0.28
L29	33.78±1.18	291.48±3.11	17.33±0.27
L17	33.62±2.07	290.13±2.32	16.89±0.26

Data are presented as means ± SE (n = 3). * and ** indicate a significant difference from that of the wild-type (WT) at P<0.05 and <0.01, respectively, by Student's t-test.