| 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 |
| |
| 作者姓名： | 侯玉慧 韩晓日 杨家佳 姜琳琳 |
| |
| 作者单位： | 沈阳农业大学土地与环境学院 辽宁沈阳110161
(侯玉慧，韩晓日，杨家佳)，沈阳农业大学土地与环境学院 辽宁沈阳110161(姜琳琳) |
| |
| 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。
|
| 关 键 词： | 硅 黄瓜幼苗 盐胁迫 |
Effects of Silicon on Cell Membrane Injury and the Protective Enzymes Activity of Cucumber Seedling under Salt Stress |
| |
| Authors: | Hou Yuhui Han Xiaori Yang Jiaji Jian Linlin |
| |
| Institution: | College of Land and Environment Selene, Shenyang Agricultural University, Shenyang Liaoning 110161 |
| |
| 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. |
| |
| Keywords: | Silicon Cucumber seedlings Salt stress |
|
| 点击此处可从《》浏览原始摘要信息 |
| 点击此处可从《》下载免费的PDF全文 |
