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首页> 外文期刊>Crop Research >Regulation of antioxidant enzymes activity by water deficit in maize (Zea mays L.)
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Regulation of antioxidant enzymes activity by water deficit in maize (Zea mays L.)

机译：玉米水分不足对抗氧化酶活性的调节

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Antioxidant enzymes play an important role in the response to biotic and abiotic stresses in plants. We studied the expression patterns and enzyme activities of glutathione peroxidase (GPX) and super oxidedismutase (SOD) under water deficit and Se-foliar conditions from maize leaves. We found the high resistance in maize plants. Based on their nucleotide retain, SOD and GPX were fixed to leaf area duration (LAD) and yield. Both enzymes showed the specific activity with affected selenium. Selenium application was performed to examine the activity of SOD and GPX in maize (Zm). SOD and GPX were upregulated in response to water-deficit. Moreover, GPX was mainly expressed in leaf tissues, whereas SOD was primarily observed in leaf and stem tissues. The GPX activity increased in leaves of maize with affected selenium in flowering stage in response to water-deficit stress. Furthermore, it appeared that GPX and SOD were not post-transcriptionally regulated in maize. These results suggest that GPX and SOD may play a role in the water-deficit response in selenium foliar application.
机译：抗氧化酶在植物对生物和非生物胁迫的响应中起着重要作用。我们研究了玉米叶片缺水和Se-叶条件下谷胱甘肽过氧化物酶（GPX）和超氧化物歧化酶（SOD）的表达模式和酶活性。我们发现玉米植物具有高抗性。基于核苷酸的保留，将SOD和GPX固定在叶面积持续时间（LAD）和产量上。两种酶均显示出与受影响的硒有关的比活性。进行硒施用以检查玉米（Zm）中SOD和GPX的活性。响应缺水，SOD和GPX上调。此外，GPX主要在叶组织中表达，而SOD主要在叶和茎组织中观察到。缺水胁迫下，硒含量受影响的玉米叶片中GPX活性增加。此外，似乎GPX和SOD在玉米中不受转录后调控。这些结果表明，GPX和SOD可能在硒叶施用的缺水响应中发挥作用。

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