| 干旱胁迫下二倍体、四倍体萝卜抗氧化酶活性比较 |
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| 引用本文： | 张蜀宁,张红亮,张宇,柳李旺,王建军.干旱胁迫下二倍体、四倍体萝卜抗氧化酶活性比较[J].江西农业学报,2011,23(4):39-41. |
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| 作者姓名： | 张蜀宁 张红亮 张宇 柳李旺 王建军 |
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| 作者单位： | 1. 南京农业大学,园艺学院、作物遗传与种质创新国家重点实验室、农业部南方蔬菜遗传改良重点开放实验室,江苏,南京,210095
2. 南京农业大学,园艺学院、作物遗传与种质创新国家重点实验室、农业部南方蔬菜遗传改良重点开放实验室,江苏,南京,210095;山西省农业种子总站,山西,太原,030001 |
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| 基金项目： | 江苏省科技支撑计划项目(BE2010328)"优质多抗专用萝卜新品种选育" |
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| 摘 要： | 研究干旱胁迫下二倍体和同源四倍体萝卜超氧化物歧化酶(SOD)、过氧化物酶(POD)、过氧化氢酶(CAT)活性,超氧阴离子(O2-)产生速率,过氧化氢(H2O2)和丙二醛(MDA)含量,电解质渗透率和可溶性蛋白质含量的变化。结果表明:干旱胁迫过程中,四倍体与二倍体的变化趋势一致:SOD、POD和CAT活性分别呈"V"、"W"、"N"形曲线变化,可溶性蛋白质含量先上升后下降,四倍体高于二倍体;O2-产生速率和H2O2含量先上升后下降,MDA含量先上升保持稳定后再下降,电解质渗透率整体呈上升趋势,四倍体低于二倍体。四倍体适应干旱逆境的能力强于二倍体,田间试验表明四倍体具丰产性。
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| 关 键 词： | 萝卜 同源四倍体 干旱胁迫 抗氧化酶 |
Studies on Activities of Antioxidant Enzymes in Diploid and Tetraploid Radish under Drought Stress |
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| ZHANG Shu-ning,ZHANG Hong-liang,ZHANG Yu,LIU Li-wang,WANG Jian-jun.Studies on Activities of Antioxidant Enzymes in Diploid and Tetraploid Radish under Drought Stress[J].Acta Agriculturae Jiangxi,2011,23(4):39-41. |
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| Authors: | ZHANG Shu-ning ZHANG Hong-liang ZHANG Yu LIU Li-wang WANG Jian-jun |
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| Institution: | 1* (1.College of Horticulture,Nanjing Agricultural University;State Key Laboratory of Crop Genetics and Germplasm Enhancement;Key Opening Laboratory of Southern Vegetable Crop Genetics Improvement,Ministry of Agriculture,Nanjing 210095,China;2.Shanxi Agricultural Seed Station,Taiyuan 030001,China) |
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| Abstract: | The author studied the changes of superoxide dismutase(SOD),peroxidase(POD) and catalase(CAT) activities,production rate of superoxide(O2-),malondialdehyde(MDA) and hydrogen peroxide(H2O2) contents,electrolyte leakage rate and soluble protein content in the diploid and autotetraploid radish under drought stress.The results showed that these changes had similar trends in the diploid and autotetraploid radish.The effect of drought stress on the activity of SOD,POD and CAT was V-type,W-tpe and N-type respectiv... |
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| Keywords: | Radish Autotetraploid Drought stress Antioxidant enzyme |
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