The effect of exogenously applied H2O2 on salt stress acclimation was studied with regard to plant growth, lipid peroxidation, and activity of antioxidative enzymes in leaves and roots of a salt-sensitive maize genotype. Pre-treatment by addition of 1 microM H2O2 to the hydroponic solution for 2 days induced an increase in salt tolerance during subsequent exposure to salt stress. This was evidenced by plant growth, lipid peroxidation and antioxidative enzymes measurements. In both leaves and roots the variations in lipid peroxidation and antioxidative enzymes (superoxide dismutase, ascorbate peroxidase, guaiacol peroxidase, glutathione reductase, and catalase) activities of both acclimated and unacclimated plants, suggest that differences in the antioxidative enzyme activities may, at least in part, explain the increased tolerance of acclimated plants to salt stress, and that H2O2 metabolism is involved as signal in the processes of maize salt acclimation.

中文翻译：

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过氧化氢预处理诱导玉米植株的盐胁迫驯化

研究了外源施加 H2O2 对盐胁迫驯化的影响，包括植物生长、脂质过氧化以及盐敏感玉米基因型叶和根中抗氧化酶的活性。通过将 1 microM H2O2 添加到水培溶液中 2 天进行预处理，在随后暴露于盐胁迫期间诱导耐盐性增加。植物生长、脂质过氧化和抗氧化酶测量证明了这一点。在叶和根中，驯化和未驯化植物的脂质过氧化和抗氧化酶（超氧化物歧化酶、抗坏血酸过氧化物酶、愈创木酚过氧化物酶、谷胱甘肽还原酶和过氧化氢酶）活性的变化表明，抗氧化酶活性的差异可能至少在部分，