| 甘草对NaCl和Na_2CO_3胁迫的生理响应特点 |
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| 引用本文： | 杨国会,石德成.甘草对NaCl和Na_2CO_3胁迫的生理响应特点[J].湖北农业科学,2009,48(5). |
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| 作者姓名： | 杨国会 石德成 |
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| 作者单位： | 1. 吉林农业科技学院教务处,吉林,吉林,132101
2. 东北师范大学生命科学学院,长春,130024 |
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| 基金项目： | 国家自然科学基金项目 |
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| 摘 要： | 以药用植物甘草为材料,采用沙基培养法培养幼苗,以含有不同浓度的NaCl或Na2CO3的营养液对其分别进行不同强度的盐胁迫和碱胁迫处理.结果表明,甘草幼苗在NaCl浓度不超过350 mmol·L-1、Na2CO3浓度不超过50mmol·L-1条件下可全部存活,在NaCl浓度不超过150mmol·L-1时对甘草生长无明显影响;NaCl浓度超过150 mmol·L-1、Na2CO3浓度超过50 mmol·L-1,甘草生长明显受到抑制,日相对生长率、单叶面积及根系活力均呈下降趋势,膜伤害加剧,膜透性增大,丙二醛含量升高.在相同浓度胁迫下,碱胁迫的胁变反应均比盐胁迫强烈,说明甘草的抗盐性高于抗碱性,低浓度盐对甘草的生长起促进作用.
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| 关 键 词： | 甘草 盐胁迫 碱胁迫 生理响应 |
Physiological Responses of Glycyrrhiza uralensis Fisch to NaCl and Na_2CO_3 Stresses |
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| YANG Guo-hui,SHI De-cheng.Physiological Responses of Glycyrrhiza uralensis Fisch to NaCl and Na_2CO_3 Stresses[J].Hubei Agricultural Sciences,2009,48(5). |
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| Authors: | YANG Guo-hui SHI De-cheng |
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| Institution: | 1.Dean's Office;Jilin College of Agricultural Science and Technology;Jilin 132101;Jilin;China;2.Life Science College;Northeast Normal University;Changchun 130024;China |
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| Abstract: | Medicinal plant Glycyrrhiza uralensis Fisch was taken as the material.Seedlings of sand-cultured were stressed with different concentration of NaCl and Na2CO3.The results showed that the strain responses were as follows: the seedlings were able to survive when the concentration of NaCl was no higher than 350 mmol.L-1 and Na2CO3 was no higher than 50mmol.L-1.It grew well when the concentration of NaCl was below 150 mmol.L-1.With the concentration of NaCl being above 150 mmol.L-1 and Na2CO3 being above 50 mmo... |
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| Keywords: | Glycyrrhiza uralensis Fisch saline stress alkali stress physiological respohses |
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