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| 低温胁迫下玉米幼苗叶片活性氧的产生及保护酶活性的变化 | |
| 引用本文： | 吴建慧,杨玲,孙国荣. 低温胁迫下玉米幼苗叶片活性氧的产生及保护酶活性的变化[J]. 植物研究, 2004, 24(4): 456-459 |
| 作者姓名： | 吴建慧 杨玲 孙国荣 |
| 作者单位： | 1. 东北林业大学, 哈尔滨 150040; 2. 扬州大学生物科学与技术学院, 扬州 225009 |
| 摘 要： | 在光照和黑暗条件下, 对低温胁迫玉米幼苗叶片中超氧自由基(O2·)产生速率、超氧化物歧化酶(SOD)、过氧化氢酶(CAT)、过氧化物酶(POD)动态变化过程的研究结果表明, 不同强度低温胁迫后, O2·产生速率增加;保护酶SOD 、CAT 活性下降, POD 活性升高。同一低温胁迫下光照处理后的O2·产生速率、SOD 、CAT 、POD 活性与黑暗处理相比差异达到极显著水平。 |
| 关 键 词： | 玉米幼苗 低温胁迫 光照 活性氧 保护酶 |
| 收稿时间： | 2004-01-05 |
| 修稿时间： | 2004-01-05 |
Generation of activated oxygen and change of cell defense enzyme activity in leaves of maize seedling under the stress of low temperature |
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| WU Jian-Hui YANG Ling SUN Guo-Rong. Generation of activated oxygen and change of cell defense enzyme activity in leaves of maize seedling under the stress of low temperature[J]. Bulletin of Botanical Research, 2004, 24(4): 456-459 | |
| Authors: | WU Jian-Hui YANG Ling SUN Guo-Rong |
| Affiliation: | 1. Northeast Forestry University, Harbin 150040; 2. College of Biosciences and Biotechnology, Yangzhou University, Yangzhou 225009 |
| Abstract: | Changes of activated oxygen O2·, activity of enzymes involving cell defense in leaves of maize seedling after effects of low temperature and light were studied.The results showed that the generation rate of activated oxygen O2· increased;the activities of SOD and CAT decreased and POD increased under different low temperature stress;many notable distinguishes in facts such as generation of activated oxygen O2· and changes of the activities of SOD, CAT, POD had been found between light and dark after the same low temperature stress. |
| Keywords: | maize seedling low temperature stress light activated oxygen cell defense enzyme |
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