| 王磊,张彤,杨俊兴,吴冬秀,张岁岐.干旱条件下钙和赤霉素混合处理小麦种子对胚部抗氧化酶活性的影响[J].干旱地区农业研究,2005,(1):125~128 |
| 干旱条件下钙和赤霉素混合处理小麦种子对胚部抗氧化酶活性的影响 |
| Effects of seed treatment with calcium and gibberellin mixture on antioxidative enzyme activity of seed embryo under drought stress |
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| DOI：10.7606/j.issn.1000-7601.2005.01.25 |
| 中文关键词: 冬小麦 浸种 钙离子 赤霉素 抗氧化酶 |
| 英文关键词:Triticum aeastivum L. soaking seed Ca2＋ GA antioxidative enzyme activity |
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| 中文摘要: |
| 在20%PEG6000模拟干旱的条件下,用0.5%CaCl2、50mg/L赤霉素(GA)以及0.5%CaCl2+50mg/LGA浸种,研究不同浸种处理对小麦种苗胚部抗氧化酶活性的影响。结果发现,Ca+GA浸种处理的种子在生长过程中,尤其是在生长的第1天和第3天,其过氧化物酶(POD)、过氧化氢酶(CAT)、超氧化物歧化酶(SOD)的活性在各处理中最低,抗坏血酸—过氧化物酶(APX)和谷胱甘肽还原酶(GR)的活性也维持在很低水平。表明Ca+GA浸种使小麦胚部在干旱条件下保持较低的氧化状态,有利于小麦萌动和出苗。 |
| 英文摘要: |
| Under the conditions simulated with 20% PEG6000, the effect of soaking seed with 0.5% CaCl2、 50 mg/L GA and 0.5% CaCl2+50 mg/L GA on antioxidative enzyme activity of wheat embryo part was studied. The result showed that activity of POD, CAT, SOD of the seed treated with Ca+GA was the lowest during experiment periods, especially on the first and the third growing day. The activity of APX and GR also maintained very low level. So, soaking seed with Ca+GA could keep the oxidant condition of embryo part in a lowest level and was favorable for seedling establishment under drought. |
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