| 渗透胁迫对白三叶幼苗根系离子分泌和质膜ATP酶活性的影响 |
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| 引用本文： | 韩建秋.渗透胁迫对白三叶幼苗根系离子分泌和质膜ATP酶活性的影响[J].中国农学通报,2010,26(9):202-205. |
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| 作者姓名： | 韩建秋 |
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| 作者单位： | 上海应用技术学院生态技术与工程学院,上海,200235 |
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| 基金项目： | 盆栽植物综合控根技术研究 |
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| 摘 要： | 用PEG－6000渗透胁迫处理，白三叶根系质膜透性升高,抗旱品种‘海发’增幅小于不抗旱品种‘瑞文德’。根系分泌物中K+、Ca2+、H+的含量变化与根系质膜透性的变化一致。水分胁迫早期,白三叶根系PM H＋-ATPase活性升高,胁迫时间延长,不抗旱品种‘瑞文德’的PM H＋-ATPase酶活性下降,但抗旱品种‘海发’的酶活性一直较高。PM Ca2+-ATPase酶的活性与PM H＋-ATPase酶表现一致。
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| 关 键 词： | 荷花 荷花 花粉形态 主成分分析 |
| 收稿时间： | 2009-12-21 |
| 修稿时间： | 2010-01-14 |
Effects of PEG Stress on Plasma Membrane Permeability and ATPase Activity of White Clovers |
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| Han Jianqiu.Effects of PEG Stress on Plasma Membrane Permeability and ATPase Activity of White Clovers[J].Chinese Agricultural Science Bulletin,2010,26(9):202-205. |
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| Authors: | Han Jianqiu |
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| Institution: | School of Ecological Technology and Engineering, Shanghai Institute of Technology, Shanghai 200235 |
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| Abstract: | The plasma membrane (PM) permeability increased in white clover roots under PEG-6000 osmotic stress, and the amplitude of changes in drought-resistant cultivar was more sensitive than that in the drought one. the contents of K+, Ca2+ and H+ in root exudates changed with the plasma membrane permeability. PM H+-ATPase activity increased at early stage under stress, but dropped at late stage under serious stress in drought-resistant cultivar. PM Ca2+-ATPase activity changed like PM H+-ATPase activity. |
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| Keywords: | ATPase Activityzz |
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