| 钠替代钾下甜菜体内MDA含量、SOD和CAT活性的差异 |
| |
| 引用本文： | 郑翠兵,耿贵,於丽华,邳植.钠替代钾下甜菜体内MDA含量、SOD和CAT活性的差异[J].中国糖料,2011(1). |
| |
| 作者姓名： | 郑翠兵 耿贵 於丽华 邳植 |
| |
| 作者单位： | 黑龙江省普通高等学校甜菜遗传育种重点实验室,哈尔滨,150080;中国农业科学院甜菜研究所,哈尔滨,150080 |
| |
| 摘 要： | 选取耐盐性不同的材料在钾钠浓度比为3∶0、1.5∶1.5、0.75∶2.25、0.15∶2.85、0.03∶2.97营养液中培养21d.测定各样品中丙二醛(MDA)含量、超氧化物岐化酶(SOD)和过氧化氢酶(CAT)活性.结果表明,在钾钠比3∶0～0.03∶2.97范围内耐盐性强品种MDA含量均无明显变化;耐盐性弱品种MDA含量在钾钠比0.75∶2.25～0.03∶2.97中随钾钠比降低呈逐渐上升趋势.耐盐性强品种在钾钠比3∶0～0.75∶2.25中SOD活性与钾钠比成反比,在钾钠比0.75∶2.25～0.03∶2.97中SOD活性与钾钠比成正比;耐盐性弱品种在钾钠比3∶0～0.75∶2.25中变化趋势与耐盐性强品种相似,在钾钠比0.75∶2.25～0.03∶2.97中SOD活性变化趋于平稳.在钾钠比3∶0～0.03∶2.97中耐盐性强品种CAT活性无明显变化,酶活性在70U/gmf小幅波动;耐盐性弱品种在钾钠比3∶0～1.5∶1.5中耐盐性弱品种CAT活性无明显变化,且与耐盐性强品种活性相当,在钾钠比1.5∶1.5～0.75∶2.25中CAT活性呈上升趋势,而在钾钠比0.75∶2.25～0.03∶2.97中呈下降趋势.
|
| 关 键 词： | 甜菜 钠钾替代 丙二醛 超氧化物歧化酶 过氧化氢酶 |
MDA Content, SOD and CAT Activities of Sugarbeet Cultivated under Different K+/Na+ Conditions |
| |
| ZHENG Cui-bing,GENG Gui,YU Li-hua,PI Zhi.MDA Content, SOD and CAT Activities of Sugarbeet Cultivated under Different K+/Na+ Conditions[J].Sugar Crops of China,2011(1). |
| |
| Authors: | ZHENG Cui-bing GENG Gui YU Li-hua PI Zhi |
| |
| Institution: | ZHENG Cui-bing1,2,GENG Gui1,YU Li-hua1,PI Zhi1,2(1 Sugarbeet Research Institute,Chinese Academy of Agricultural Sciences,Harbin 150080,China,2.The Key Laboratory of Sugarbeet Genetics and Breeding,Heilongjiang University,China) |
| |
| Abstract: | In this experiment,both of salt tolerant and salt susceptive sugarbeets are cultivated under different K+/Na+(3/0,1.5/1.5,0.75/2.25,0.15/2.85,0.03/2.97)nutrient solutions,keeping the invariable K+ and Na+ concentration of each solution until the 21st day,and measuring the MDA content,activities of SOD and CAT.Results show that the salt tolerant variety sample's MDA content have no apparent diversify.The salt susceptive variety sample's MDA content increased gradually from K+/Na+ 0.75/2.25 to 0.03/2.97.The S... |
| |
| Keywords: | beet K /Na substitutio MDA SOD CAT |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
