| 混合盐胁迫对引种绒毛白蜡生长及相关生理指标的影响 |
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| 引用本文： | 李淑娟,詹亚光,杨传平,吴志萍,任苓,徐晓妍,葛苏洁.混合盐胁迫对引种绒毛白蜡生长及相关生理指标的影响[J].东北林业大学学报,2010,38(1). |
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| 作者姓名： | 李淑娟 詹亚光 杨传平 吴志萍 任苓 徐晓妍 葛苏洁 |
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| 作者单位： | 1. 林木遗传育种与生物技术教育部重点实验室(东北林业大学),哈尔滨,150040
2. 东北林业大学 |
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| 基金项目： | 国家林业局林业科技支撑计划(2006BAD01A1603);;黑龙江省林业厅“绒毛白蜡引种及杂交育种技术研究”课题资助 |
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| 摘 要： | 模拟大庆碱斑土盐离子的种类、质量分数和pH值,将5种中性盐NaC、lNa2SO4、MgC l2、KC、lCaC l2和2种碱性盐NaHCO3、Na2CO3混合,配成相当于碱斑土质量分数1、2和3倍的混合盐溶液,对引种绒毛白蜡(Fraxi-nus velutinaTorr.)进行胁迫,比较其生长量、SPAD、SOD、POD、MDA和脯氨酸的变化。研究表明,在混合盐胁迫下光合作用降低是绒毛白蜡生长受抑制的主要原因。其能够在1倍质量分数的混合盐胁迫下继续生长,这与细胞内SOD、POD的调节和脯氨酸的积累有关。高质量分数的混合盐胁迫使膜透性增加,各项生理机能遭到更严重的破坏,导致植株生长停滞甚至死亡。
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| 关 键 词： | 绒毛白蜡 耐盐性 混合盐胁迫 生理指标 |
Effects on Growth and Physiological Indices of Introduced Species of Fraxinus velutina Under Mixed Salt Stress |
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| Li Shujuan,Zhan Yaguang,Yang Chuanping,Wu Zhiping,Ren Ling,Xu Xiaoyan,Ge Sujie.Effects on Growth and Physiological Indices of Introduced Species of Fraxinus velutina Under Mixed Salt Stress[J].Journal of Northeast Forestry University,2010,38(1). |
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| Authors: | Li Shujuan Zhan Yaguang Yang Chuanping Wu Zhiping Ren Ling Xu Xiaoyan Ge Sujie |
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| Institution: | Li Shujuan,Zhan Yaguang,Yang Chuanping(Key Laboratory of Forest Tree Genetic Improvement , Biotechnology,Ministry of Education(Northeast Forestry University),Harbin 150040,P.R.China),Wu Zhiping,Ren Ling,Xu Xiaoyan,Ge Sujie(College of Forestry,Northeast Forestry University) |
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| Abstract: | Five neutral salts of NaCl,Na2SO4,MgCl2,KCl,CaCl2 and two alkaline salts of NaHCO3 and Na2CO3 were blended into mixed-salt solutions to simulate the ion,concentration and pH value of salinity in the alkaline soil in Daqing area.Three different concentrations which were equivalent to one time,two times and three times concentration of the alkaline soil were used to treat the introduced species of Fraxinus velutina Torr.Growth increment and the changes in physiological indices of SPAD,SOD,POD,MDA,and proline ... |
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| Keywords: | Fraxinus velutina Salt tolerances Mixed-salt stress Physiological indexes |
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