| 硅对盐胁迫下黄瓜幼苗细胞膜伤害及其保护酶活性的影响 |
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| 引用本文： | 侯玉慧,韩晓日,杨家佳,姜琳琳.硅对盐胁迫下黄瓜幼苗细胞膜伤害及其保护酶活性的影响[J].中国农学通报,2005,21(9):252-254. |
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| 作者姓名： | 侯玉慧 韩晓日 杨家佳 姜琳琳 |
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| 作者单位： | 沈阳农业大学土地与环境学院,辽宁,沈阳,110161 |
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| 摘 要： | 以抗盐性不同的两个黄瓜品种为材料,研究硅对NaCl胁迫下黄瓜幼苗细胞膜伤害及其保护酶活性的影响。结果表明:盐胁迫下细胞的膜质过氧化程度明显加剧,丙二醛(MDA)含量显著增加;超氧化物歧化酶(SOD)、过氧化物酶(POD)、过氧化氢酶(CAT)的活性均有不同程度的下降。外源硅降低了幼苗叶片质膜透性,提高了盐胁迫下黄瓜幼苗体内SOD、POD酶活性,但对CAT活性影响不大。
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| 关 键 词： | 硅 黄瓜幼苗 盐胁迫 |
| 收稿时间： | 2005-05-18 |
| 修稿时间： | 2005-05-182005-05-20 |
Effects of Silicon on Cell Membrane Injury and the Protective Enzymes Activity of Cucumber Seedling under Salt Stress |
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| Hou Yuhui,Han Xiaori,Yang Jiajia,Jian Linlin.Effects of Silicon on Cell Membrane Injury and the Protective Enzymes Activity of Cucumber Seedling under Salt Stress[J].Chinese Agricultural Science Bulletin,2005,21(9):252-254. |
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| Authors: | Hou Yuhui Han Xiaori Yang Jiajia Jian Linlin |
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| Institution: | College of Land and Environment Selene, Shenyang Agricultural University, Shenyang Liaoning 110161 |
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| Abstract: | Effects of Silicon on cell membrane injury and the protective enzymes activity under salt stress were studied in two salt-resistant cucumber.The results showed that the degree of membrane lipid peroxidation of cell was hasten under NaCl stress,and the content of MDA was dramatically increased; The content of SOD?POD?CAT was declined. Exogenous silicon could decrease the plasma permeability, promoted SOD, POD activities, but had few effects on CAT on cucumber seedling under salt stress. |
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| Keywords: | Silicon Cucumber seedlings Salt stress |
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