| 自由基清除剂对几种蔬菜衰老种子活力的影响 |
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| 引用本文： | 朱世东.自由基清除剂对几种蔬菜衰老种子活力的影响[J].园艺学报,2000,27(1):67-69. |
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| 作者姓名： | 朱世东 |
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| 作者单位： | 安徽农业大学园艺系,合肥,230036 |
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| 摘 要： | 用外源自由基清除剂ＳＢＮ（１、２ｍｍｏｌ／Ｌ）和ＧＳＨ（０．００１、０．００５ｋｇ／Ｌ）浸种西瓜、甜瓜和萝卜衰老种子能显著促进其萌发，而ＡｓＡ（５、１０、１５ｍｍｏｌ／Ｌ）浸种效果不明显，上述处理要不同程度地提高衰老种子中ＣＡＴ和ＳＯＤ活性，降低Ｏ２＾－产生速率，减轻膜脂过氧化作用。
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| 关 键 词： | 自由基清除剂 蔬菜 种子活力 衰老种子 浸种 |
| 修稿时间： | 1999-01-04 |
Effects of Free Radical Scavengers on the Vigor of Senescent Seeds of Some Vegetables |
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| Zhu Shidong.Effects of Free Radical Scavengers on the Vigor of Senescent Seeds of Some Vegetables[J].Acta Horticulturae Sinica,2000,27(1):67-69. |
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| Authors: | Zhu Shidong |
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| Institution: | Dept.of Anesthesiology, The Academy of Traditional Medicine, Wuhan 430074, China |
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| Abstract: | AIM: To reveals changes in the activity of controlling reperfusion damage and the effect of scopolamine on Na+-K+-ATPase activity in the cerebral cortex during postischemic reperfusion. METHODS: Selective cerebral hypothermia is taken as a positive contrast. Complete cerebral ischemia was produced by low pressure and low reperfusion. Thirty rabbits were randomly divided into: sham operation (group Ⅰ); cerebral ischemia (group Ⅱ); cerebral ischemia and reperfusion (groupⅢ); reperfusion with hypothermia (group Ⅳ); scopolamine and reperfusion (group Ⅴ); scopolamine and reperfusion with hypothermia (groupⅥ). RESULTS: Na+-K+-ATPase activity in the cerebral cortex is the lowest in groupⅢ; but it was greater in group Ⅱ, Ⅳ, Ⅴ, Ⅵ than group Ⅲ (P<0.05 or P<0.01), which was not significantly difference from groupⅠ(P>0.05); Na+-K+-ATPase activity of group Ⅵ was not significantly different from group Ⅳ, Ⅴ (P>0.05). CONCLUSION: Na+-K+-ATPase is not sensitive to ischemic damage, but sensitive to reperfusion damage.Like hypothermia, scopolamine can protect Na+-K+-ATPase activity in the cerebral cortex during postischemic reperfusion, but hypothermia has no cooperating effect on scopolamine. |
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| Keywords: | Free radical scavengers Vegetables Seed vigor |
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