| 光与植物激素对黄瓜离体子叶衰老的延缓效应 |
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| 引用本文： | 李亚男,郭进,陈大清.光与植物激素对黄瓜离体子叶衰老的延缓效应[J].湖北农学院学报,2004,24(4):286-290. |
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| 作者姓名： | 李亚男 郭进 陈大清 |
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| 作者单位： | 1. 长江大学生命科学学院,湖北,荆州,434025
2. 长江大学生命科学学院,湖北,荆州,434025;武汉大学生命科学学院,湖北,武汉,430072 |
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| 基金项目： | 湖北省教育厅资助项目(2002A00013) |
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| 摘 要： | 研究了光与3种不同植物激素对黄瓜(Cucumis sativus L．)离体子叶衰老的影响。结果表明：3种植物激素都能减缓黄瓜离体子叶的叶绿素含量、超氧化物歧化酶(SOD)和过氧化氢酶(CAT)活性的下降，还能降低丙二醛(MDA)含量和电导率增量的增加；比较不同激素的作用效应，其中激动素(KT)和玉米素(ZT)延缓叶绿素含量下降效果最明显，而6-BA对降低MDA的积累和电导率的增加效果最好。另外，光和暗处理的结果显示，光能延缓黄瓜离体子叶的衰老。
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| 关 键 词： | 光照 植物激素 黄瓜 离体子叶 衰老 延缓效应 |
| 文章编号： | 1004-3888(2004)04-0286-05 |
| 修稿时间： | 2004年2月23日 |
Effects of Light and Plant Hormones on Senescence of Cotyledon in vitro Culture of Cucumber |
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| LI Ya-nan,GUO Jin,CHEN Da-qing.Effects of Light and Plant Hormones on Senescence of Cotyledon in vitro Culture of Cucumber[J].Journal of Hubei Agricultural College,2004,24(4):286-290. |
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| Authors: | LI Ya-nan GUO Jin CHEN Da-qing |
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| Institution: | LI Ya-nan~1,GUO Jin~1,CHEN Da-qing~ |
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| Abstract: | The effect of light and three kinds of plant hormones on the in vitro cucumber cotyledon was studied .The results showed that all the three kinds of plant hormones could lag the decreasing of chlorophyll content,the activity of SOD (superoxide dismutase) and CAT (catalase) and manish the increaing of the content of MDA and the conductivity.In comparison of the effects of different plant hormones, KT and ZT were the best in lagging the decreasing of the content of chlorophyll,the 6-BA was the best in reducing the content of MDA and the conductivity.In addition with the treatment of light and dark, the light could slower the senescence of in vitro cucumber cotyledon evidently. |
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| Keywords: | in vitro cucumber cotyledon plant hormone light senescence |
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