| 铬对烟草中超氧化物歧化酶、过氧化物酶活性及其同工酶的影响 |
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| 引用本文： | 宋威,张芹,李桂玲,赵敏.铬对烟草中超氧化物歧化酶、过氧化物酶活性及其同工酶的影响[J].河南农业科学,2011,40(7):61-63. |
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| 作者姓名： | 宋威 张芹 李桂玲 赵敏 |
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| 作者单位： | 1. 河南工业大学,生物工程学院,河南,郑州450001
2. 河南省水产科学研究院,河南,郑州450044 |
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| 摘 要： | 利用不同质量浓度的K2C2O2溶液处理烟草种子,对烟草幼苗的超氧化物岐化酶(SOD)及过氧化物酶(POD)活力和同工酶进行研究.结果表明,随着Cr6+质量浓度的不断增加,烟草幼苗中抗氧化酶的活性均呈现先升高而后降低的趋势.Cr6+胁迫对SOD及POD活性的影响表现为低质量浓度促进,高质量浓度抑制.在Cr6+胁迫下,PO...
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| 关 键 词： | 铬 烟草 萌发 超氧化物歧化酶 过氧化物酶 |
The Effects of Hexavalent Chromium on POD and SOD Enzyme Antivities and Isozyme of Tobacco |
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| SONG Wei,ZHANG Qin,LI Gui-ling,ZHAO Min.The Effects of Hexavalent Chromium on POD and SOD Enzyme Antivities and Isozyme of Tobacco[J].Journal of Henan Agricultural Sciences,2011,40(7):61-63. |
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| Authors: | SONG Wei ZHANG Qin LI Gui-ling ZHAO Min |
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| Institution: | 1(1.School of Bioengineering,Henan University of Technology,Zhengzhou 450001,China2.Henan Academy of Fishery Science,Zhengzhou 450044,China) |
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| Abstract: | The present study was conducted to analyze the change of enzyme activity and isoenzyme of SOD and POD in tobacco dealing with K2Cr2O7 under different concentrations.The enzyme activities increased at the beginning and then decreased with the increasing of Cr6+ concentration.The enzyme activities could be promoted with low concentration of Cr6+,and be inhibitted with high concentration of Cr6+.The expression level of POD isozyme increased,followed by decreased,under the chromium stress.The activity of SOD isozyme changed under the chromium stress,including the expression level and the band number.When the concentration of Cr6+ was low,new band appeared and the expression of isoenzyme was increased.When the concentration of Cr6+ was high,new band disappeared and the expression of isoenzyme was reduced. |
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| Keywords: | Chromium Tobacco Germination SOD POD |
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