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. 2015 May 11;2015:612363. doi: 10.1155/2015/612363

Figure 3.

Figure 3

Effects of SO2 pretreatment on the accumulation of endogenous H2S (a), superoxide anion (O2 •−) (b), hydrogen peroxide (H2O2) (c), and malondialdehyde (MDA) (d) in germinating wheat grains under Al stress. The numbers (0′, 12′/0, 12, 24, 36, and 48) or letters (CK or SO2) presented are the same as mentioned in Figure 2. Al: Al stress without SO2 pretreatment; S + Al: Al stress with SO2 pretreatment.