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| 盐胁迫下小麦叶片电阻抗与生理特性的关系 | |
| 引用本文： | 刘晓红,黄廷林,王国栋,张钢.盐胁迫下小麦叶片电阻抗与生理特性的关系[J].浙江大学学报(农业与生命科学版),2010,36(1):90. |
| 作者姓名： | 刘晓红 黄廷林 王国栋 张钢 |
| 作者单位： | 1. 西安建筑科技大学,环境科学与工程博士后科研流动站,陕西,西安,710055;延安大学,化学与化工学院,陕西,延安,716000 2. 西安建筑科技大学,环境科学与工程博士后科研流动站,陕西,西安,710055 3. 西北农林科技大学,理学院,陕西,杨凌,712100 4. 河北农业大学,园艺学院,河北,保定071001 |
| 基金项目： | 国家科技部"西部开发"重大资助项目 |
| 摘 要： | 采用溶液培养方法,研究NaCl胁迫下小麦叶片电阻和电抗的变化特征及其与保护酶(CAT、POD)活性、丙二醛(MDA)、相对电导率、含水率和可溶性糖含量等生理参数的关系。结果表明:随着盐浓度的递增,小麦叶片的胞外电阻、弛豫时间先增加后减小,而胞内电阻和弛豫时间分布系数先减小后缓慢增大,过氧化氢酶(CAT)、过氧化物酶(POD)活性、含水率和可溶性糖含量逐渐减小,MDA含量和相对电导率逐渐增加;胞外电阻re与弛豫时间τ呈极显著正相关;除CAT活性,其余生理参数与胞外电阻re和弛豫时间τ显著或极显著相关。叶片的胞外电阻和弛豫时间比较接近地反映了细胞生理性质的变化,能够表征盐胁迫的程度。 |
| 关 键 词： | 盐胁迫 小麦 阻抗 生理特性 |
Relationship between electrical impedance and physiological characteristics of wheat leaves in salt stress |
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| LIU Xiao-hong,HUANG Ting-lin,WANG Guo-dong,ZHANG Gang.Relationship between electrical impedance and physiological characteristics of wheat leaves in salt stress[J].Journal of Zhejiang University(Agriculture & Life Sciences),2010,36(1):90. | |
| Authors: | LIU Xiao-hong HUANG Ting-lin WANG Guo-dong ZHANG Gang |
| Institution: | LIU Xiao-hong1,2,HUANG Ting-lin1,WANG Guo-dong3,ZHANG Gang4 (1.Post-doctoral Scientific Research Mobile Station of Environmental Science , Engineering,Xi\'an University of Architecture , Technology,Xi\'an 710055,China,2.College of Chemistry & Chemical Engineering,Yan\'an University,Yan\'an,Shaanxi 716000,3 College of Science,Northwest A&F University,Yangling,Shaanxi 712100,4.College of Horticulture,Agricultural University of Hebei,Baoding,Hebei 071001,China) |
| Abstract: | A solution culture experiment was conducted to determine resistance and reactance of wheat leaves under NaCl stress,and the correlation between electrical impedance and physiological parameters such as protective enzyme(CAT,POD) activity,malondialdehyde(MDA),relative conductivity,moisture content and soluble sugar content was analyzed.The results show that,with increasing NaCl concentrations,extracellular resistance and relaxation time of wheat leaves increased first and then decreased,whereas intracellular... |
| Keywords: | salt stress wheat impedance physiological characteristic |
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