| NaCl胁迫对油菜幼苗膜脂过氧化和抗氧化酶活性的影响 |
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| 引用本文： | 金美芳,连阳梅,林炎鸿.NaCl胁迫对油菜幼苗膜脂过氧化和抗氧化酶活性的影响[J].福建师大福清分校学报,2009(2). |
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| 作者姓名： | 金美芳 连阳梅 林炎鸿 |
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| 作者单位： | 福建师范大学福清分校生物与化学工程系,福建福清,350300 |
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| 摘 要： | 为研究NaCl胁迫对油菜幼苗膜脂过氧化和抗氧化酶活性的影响,用不同浓度的NaCl溶液分别对油菜幼苗进行胁迫,在不同的时间分别对油菜幼苗MDA含量,以及SOD、CAT活性进行测定.研究结果表明:100mmol/L浓度以下油菜幼苗MDA含量稍有降低,但是随着NaCl胁迫浓度的升高和胁迫时间的延长,油菜幼苗MDA含量均升高.100mmol/L浓度以下,随着胁迫时间的延长油菜幼苗的CAT和SOD酶活性均上升,高盐胁迫下(200mmol/L以上),随着胁迫浓度和胁迫时间的延长,CAT和SOD活性均先升高后降低.这说明油菜幼苗对NaCl胁迫存在浓度依赖和时间依赖关系.
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| 关 键 词： | NaCl胁迫 丙二醛 超氧化物歧化酶 过氧化氢酶 |
Effects of Peroxidation of Membrane Lipid and Activity of Antioxidant Enzymes in Cole Seeding under NaCI Stress |
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| JIN Meifang,LIAN Yangmei,LIN Yanhong.Effects of Peroxidation of Membrane Lipid and Activity of Antioxidant Enzymes in Cole Seeding under NaCI Stress[J].Journal of Fuqing Branch of Fujian Normal University,2009(2). |
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| Authors: | JIN Meifang LIAN Yangmei LIN Yanhong |
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| Institution: | Biology and Chemistry Engineering Department;Fuqing Branch of Fujian Normal University;Fuqing;Fujian 350300 |
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| Abstract: | The article studies the effects of MDA contents and the activity of SOD and CAT in cole seeding under NACl stress.The results are following: under 100 mmol/L of NaCl concentration,MDA content has a little decline,but with the increase of NaCl concentration and prolong of time,MDA contents increase.The activity of SOD and CAT increased under the 100 mmol/L NaCl stress.When the salt concentration was over 200 mmol/L,the activity of SOD and CAT increased first,and then declined,withing increase of NaCl concent... |
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