| 逆境胁迫下的亚高山草甸植物脯氨酸累积特点分析 |
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| 引用本文： | 刘旻霞,马建祖. 逆境胁迫下的亚高山草甸植物脯氨酸累积特点分析[J]. 西北师范大学学报(自然科学版), 2010, 46(2): 101-105 |
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| 作者姓名： | 刘旻霞 马建祖 |
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| 作者单位： | [1]西北师范大学地理与环境科学学院,甘肃兰州730070 [2]甘肃省农业科学院,甘肃兰州730070 |
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| 基金项目： | 甘肃省自然科学基金资助项目，甘肃省教育厅研究生导师项目 |
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| 摘 要： | 以甘南亚高山草甸植物为研究样本,分析了不同环境梯度条件下6种植物莓叶萎陵菜(Otentillafragarioides)、火绒草(Leonto-podium nanum)、矮嵩草(Kobresia humilis)、棘豆(Oxytropis kansuensis)、狼毒(Stellerachamaejasme L.)、金露梅(Potentilla fruticosa)的游离脯氨酸的积累与变化.结果表明,随着生境(包括土壤水分、光照、温度等)的变化.6种植被叶片内脯氨酸含量随着从阴坡、半阴半阳坡、阳坡环境的变化都有不同程度的增加,而且,不同品种植物的脯氨酸含量的增加幅度有差异,进一步认为叶片内脯氨酸含量的高低可作为衡量植物抗逆性的指标.
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| 关 键 词： | 植物 逆境胁迫 脯氨酸 环境梯度 |
Analysis on the changeable characteristics of adversity stress on proline of plants in subalpine meadow |
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| LIU Min-xia,MA Jian-zu. Analysis on the changeable characteristics of adversity stress on proline of plants in subalpine meadow[J]. Journal of Northwest Normal University Natural Science (Bimonthly), 2010, 46(2): 101-105 |
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| Authors: | LIU Min-xia MA Jian-zu |
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| Affiliation: | LIU Min-xia1,MA Jian-zu2(1.College of Geography , Environmental Science,Northwest Normal University,Lanzhou 730070,Gansu,China,2.Gansu Academy of Agricultural Sciences,China) |
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| Abstract: | Taking the plants distributed in subalpine meadow as study sample,the accumulation and change of free proline content of plants is particularly analysed at six plants(Otentilla fragarioides,Leonto-podium nanum,Kobresia humilis,Oxytropis kansuensis,Stellera chamaejasme L.,Potentilla fruticosa)in this paper.The results are as follows.With the change of growth environment(include water of soil,sunlight,temperature and so on),the concentration of free proline(Pro)contents of leaves of six plants become higher i... |
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| Keywords: | plant adversity stress proline environmental gradient |
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