| 增强UV-B条件下类黄酮与苦荞逆境伤害和抗氧化酶的关系 |
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| 引用本文： | 董新纯,赵世杰,郭珊珊,孟庆伟.增强UV-B条件下类黄酮与苦荞逆境伤害和抗氧化酶的关系[J].山东农业大学学报(自然科学版),2006,37(2):157-162. |
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| 作者姓名： | 董新纯 赵世杰 郭珊珊 孟庆伟 |
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| 作者单位： | 山东农业大学生命科学学院,山东省作物生物学重点实验室,山东,泰安,271018 |
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| 摘 要： | 经增强UV-B处理后,苦荞水培苗表现出胁迫效应,其相对电导率和MDA含量提高,而叶绿素含量和光合速率下降。增强UV-B处理诱导叶片类黄酮含量提高,但高幅照度和长时间UV-B处理则使后期类黄酮含量下降。叶片类黄酮含量与UV-B逆境伤害程度和抗氧化酶活性相关,外施类黄酮物质芦丁可以降低MDA含量和维持SOD活性在较高水平。
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| 关 键 词： | 类黄酮 UV-B 抗氧化酶 膜脂过氧化 胁迫 |
| 文章编号： | 1000-2324（2006）02-0157-06 |
| 收稿时间： | 2005-12-10 |
| 修稿时间： | 2005年12月10 |
ROLE OF FLAVONOIDS ON STRESS INJURY AND ANTIOXYDATIVE ENZYMES IN FAGOPYRUM TATARICUM SEED INGS UNDER ENHANCED UV-BRADIATION |
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| DONG Xin-chun,ZHAO Shi-jie,GUO Shan-shan,MENG Qing-wei.ROLE OF FLAVONOIDS ON STRESS INJURY AND ANTIOXYDATIVE ENZYMES IN FAGOPYRUM TATARICUM SEED INGS UNDER ENHANCED UV-BRADIATION[J].Journal of Shandong Agricultural University,2006,37(2):157-162. |
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| Authors: | DONG Xin-chun ZHAO Shi-jie GUO Shan-shan MENG Qing-wei |
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| Institution: | College of Life Science, Shandong Agricultural University, Key Laboratory of Crop Biology of Shandong Province, Taian 271018, China |
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| Abstract: | After treated by enhanced UV-B radiation,therelative electrical conductivity(REC) and malondialdehyde(MDA)content in seedling of Fagopyrum tataricumwereincreased.Meantime,the chl.Content and photosynthetic rate were decreased.The increasing of flavonoids content in leave was stimulated by enhanced UV-B radiation,but the decreasing of flavonoids content occurredunder high radiation and long time treatment of UV-B.The flavonoids content in leave was related to injure level and antioxydative enzymes activity.When seedling treated by rutin(a kind of flavonoids) under high intension UN-B radiation,the MDA content kept a low level and SOD activity kept a high level in leaves. |
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| Keywords: | Flavonoids UV-B Antioxydative enzymes Membrane lipid peroxidation Stress |
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