| NaCl胁迫对藜幼苗叶片渗透调节物质和保护酶的影响 |
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| 引用本文： | 施剑杰,金慧丽,孙存华,孙东,李百伟,王丹.NaCl胁迫对藜幼苗叶片渗透调节物质和保护酶的影响[J].安徽农业科学,2011,39(12):6943-6946. |
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| 作者姓名： | 施剑杰 金慧丽 孙存华 孙东 李百伟 王丹 |
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| 作者单位： | 徐州师范大学生命科学学院,江苏徐州,22116 |
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| 基金项目： | 徐州师范大学自然科学基金重点项目，徐州师范大学自然科学基金预研项目 |
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| 摘 要： | 目的]研究不同浓度NaCl胁迫对藜叶片中渗透调节物质和保护酶活性的影响,以探讨藜的耐盐机理,为藜的人工栽培及推广提供理论依据。方法]待藜幼苗长到4叶期时,用0%、0.6%、1.2%、1.8%NaCl溶液进行根部胁迫处理,分别于处理0、1、3、5、7 d后从藜幼苗上部取第3～5片功能叶片进行各项生理指标的测定。结果]在0.6%NaCl胁迫下,渗透调节物质（可溶糖、脯氨酸和可溶性蛋白质）含量和保护酶（SOD、POD和CAT）活性都是缓慢增加的,丙二醛含量增加不大,膜脂过氧化水平低。在1.2%、1.8%NaCl胁迫下,渗透调节物质（可溶性糖、脯氨酸和可溶性蛋白质）含量随胁迫时间的延长而增加,SOD、POD、CAT活性随胁迫时间的延长先升高后降低,丙二醛含量显著提高,膜脂过氧化水平增大。结论]藜可以通过渗透调节物质增加和保护酶活性增大来对适度的盐胁迫有一定的适应性,但高浓度、长时间的盐胁迫会对藜造成严重损伤。
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| 关 键 词： | 藜 NaCl胁迫 渗透调节物质 保护酶 |
Effects of NaCl Stress on Osmotic Adjustment Solute and Protective Enzyme in Seedling Leaves of Chenopodium album L. |
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| SHI Jian-jie et al.Effects of NaCl Stress on Osmotic Adjustment Solute and Protective Enzyme in Seedling Leaves of Chenopodium album L.[J].Journal of Anhui Agricultural Sciences,2011,39(12):6943-6946. |
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| Authors: | SHI Jian-jie |
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| Institution: | SHI Jian-jie et al(College of Life Science,Xuzhou Normal University,Xuzhou,Jiangsu 221116) |
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| Abstract: | Objective] Chenopodium album L.were stressed by different concentration NaCl and identified of osmotic adjustment solute and protective enzyme activity in order to lay a foundation for studying clarifying the salt-tolerant physiological mechanism of Chenopodium album L.and supplied theoretical basis and practical guidance for artificial cultivation and popularization of C.album.Method] C.album seedlings grown to 4th leaf stage were treated by NaCl stress with concentrations of 0%,0.6%,1.2% and 1.8% and th... |
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| Keywords: | Chenopodium album L NaCl stress Osmotic adjustment solute Protective enzyme |
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