外源海藻糖增强高表达转玉米C4型PEPC水稻耐旱性的机制
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李佳馨, 李霞, 谢寅峰
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Mechanism on Drought Tolerance Enhanced by Exogenous Trehalose in C4-PEPC Rice
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Jiaxin Li, Xia Li, Yinfeng Xie
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表2 海藻糖处理调节干旱胁迫下水稻叶片的氧化损伤
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Table 2 Trehalose treatments regulate the oxidative damage of rice leaves under drought stress
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| Index | WT | PC | | CK | CK+Tre | DS | DS+Tre | CK | CK+Tre | DS | DS+Tre | | RWC (%) | 91.09 b | 92.02 ab | 78.05 e | 89.21 c | 89.68 c | 88.30 c | 80.81 d | 93.00 a | | MDA (nmol·mg-1 prot) | 2.26 d | 2.22 d | 3.39 a | 2.52 c | 2.40 c | 2.18 c | 3.03 b | 1.89 e | | H2O2 (μmol·g-1 FW) | 6.87 f | 24.84 a | 14.59 c | 5.09 g | 8.01 e | 21.68 b | 11.96 d | 3.63 h | | SOD (U·mg-1 prot) | 1087.99 d | 1063.79 e | 1101.66 c | 1126.52 b | 1083.80 d | 1059.65 e | 1102.99 c | 1140.24 a | | CAT (U·mg-1 prot) | 15.74 e | 16.99 c | 16.63 d | 16.65 d | 13.51 f | 18.39 a | 16.25 d | 17.74 b | | GR (nmol·g-1 prot) | 1.49 e | 2.46 c | 2.17 d | 0.96 g | 1.22 f | 3.26 b | 3.69 a | 2.00 d | | APX (U·g-1 FW) | 5.26 c | 6.55 b | 6.59 b | 10.14 a | 2.70 f | 4.33 d | 2.32 g | 3.74 e |
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