| 生姜叶片发育过程中光合速率与MDA含量及保护酶活性的变化 |
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| 引用本文： | 艾希珍,张振贤.生姜叶片发育过程中光合速率与MDA含量及保护酶活性的变化[J].园艺学报,1998,25(3):294-296. |
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| 作者姓名： | 艾希珍 张振贤 |
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| 作者单位： | 山东农业大学园艺系 |
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| 摘 要： | 生姜叶片的叶绿素含量与光合速率随叶龄的增大而升高，１５ｄ时达到最高峰，随后降低。叶片展开后４０ｄ内ＭＤＡ含量比较稳定，ＳＯＤ活性稍有升高，ＰＯＤ、ＣＡＴ活性急剧上升；此后ＭＤＡ含量明显提高，ＳＯＤ活性开始下降，ＰＯＤ、ＣＡＴ活性虽仍继续升高，但上升幅度减小，说明生姜叶片叶龄达４０ｄ时开始趋于衰老。
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| 关 键 词： | 生姜 超氧物歧化酶 过氧化物酶 过氧化氢酶 丙二醛 |
Changes of Photosynthetic Rate,MDA Content and the Activities of Protective Enzymes during Development of Ginger Leaves |
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| Ai Xizhen,Zhang Zhenxian,Cui Zhifeng,and Chen Liping.Changes of Photosynthetic Rate,MDA Content and the Activities of Protective Enzymes during Development of Ginger Leaves[J].Acta Horticulturae Sinica,1998,25(3):294-296. |
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| Authors: | Ai Xizhen Zhang Zhenxian Cui Zhifeng and Chen Liping |
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| Abstract: | The chlorophyll content and photosynthetic rate(Pn)in ginger leaves increased with leaf expanding and reached a peak on the 15th day at first,then declined gradually.In the first 40 days of the leaves expanding,MDA content of the leaves kept constant,and SOD activity showed a little increase.But after 40 days MDA content increased markedly and SOD activity dropped down.POD and CAT activities exhibited a steady increase during 60 days,but the increment showed a little decrease after 40 days.This result indicated that senescence of ginger leaves might occur when leaf age was about 40 days. |
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| Keywords: | Ginger Superoxide dismutase Peroxidase Catalase Malondialdehyde |
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