| 硅对盐胁迫下黄瓜幼苗根系质膜、液泡膜酶活性的影响 |
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| 引用本文： | 姚秋菊,张晓伟,吕中伟,魏国强.硅对盐胁迫下黄瓜幼苗根系质膜、液泡膜酶活性的影响[J].华北农学报,2008,23(6). |
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| 作者姓名： | 姚秋菊 张晓伟 吕中伟 魏国强 |
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| 作者单位： | 1. 河南省农业科学院,园艺研究所,河南,郑州,450002
2. 河南省农业厅,河南,郑州,450002 |
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| 基金项目： | 国家自然科学基金重点项目(30230250) |
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| 摘 要： | 研究硅对盐胁迫下黄瓜幼苗生长及根细胞质膜H^＋-ATPase、液泡膜H^＋-ATPase、H^＋-PPase和Ca^2＋-ATPase活性的影响。结果表明：盐胁迫严重抑制黄瓜幼苗生长，根细胞质膜H^＋-ATPase、液泡膜H^＋-ATPase、H^＋-PPase和Ca^2＋-ATPase活性明显降低。硅处理明显提高盐胁迫黄瓜根液泡膜H^＋-ATPase、H^＋-PPase、Ca^2＋-ATPase活性，一定程度上维持了液泡膜质子泵活性，有效地防御了细胞质酸化，这可能是硅提高黄瓜耐盐性的一个重要因素。
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| 关 键 词： | 盐胁迫 黄瓜 硅 质膜H^＋-ATPase 液泡膜H^＋-ATPase 液泡膜H^＋-PPase Ca^2＋-ATPase |
Effects of Silicon on the Activities of Plasmalemma H+-ATPase,Tonoplast H+-ATPase and H+-PPase in Cucumber Seedlings under Salt Stress |
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| YAO Qiu-ju,ZHANG Xiao-wei,LV Zhong-wei,WEI Guo-qiang.Effects of Silicon on the Activities of Plasmalemma H+-ATPase,Tonoplast H+-ATPase and H+-PPase in Cucumber Seedlings under Salt Stress[J].Acta Agriculturae Boreali-Sinica,2008,23(6). |
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| Authors: | YAO Qiu-ju ZHANG Xiao-wei LV Zhong-wei WEI Guo-qiang |
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| Abstract: | The effects of exogenous Si on the changes of activities of the plasma membrane H+-ATPase and tonoplast H+-ATPase,H+-PPase and Ca2+-ATPase were investigated in roots of salt-stressed cucumber seedlings(Cucumis sativus L.).The results showed that salt stress significantly decreased the plant growth and the activities of plasma membrane H+ATPase and tonoplast H+-ATPase,H+-PPase and Ca2+-ATPase.Addition of Si markedly increased the activities of plasma membrane H+-ATPase and tonoplast H+-ATPase,H+-PPase and Ca... |
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| Keywords: | Salt stress Cucumber(Cucumis sativus L ) Silicon Plasma membrane H+-ATPase Tonoplast H+-ATPase Tonoplast H+-PPase Ca2+-ATPase |
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