| 水分胁迫下勘察加景天生理生化指标的变化 |
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| 引用本文： | 李滨胜,周玉迁,王振宇,潘杰,李长海.水分胁迫下勘察加景天生理生化指标的变化[J].中国林副特产,2010(3):4-7. |
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| 作者姓名： | 李滨胜 周玉迁 王振宇 潘杰 李长海 |
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| 作者单位： | 1. 黑龙江省森林植物园,哈尔滨,150040
2. 东北林业大学 |
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| 基金项目： | 黑龙江省林业厅科技计划项目 |
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| 摘 要： | 为了解勘察加景天对水分胁迫的反应和适应性,研究了干旱和水涝胁迫下勘察加景天的生理生化指标变化。结果表明:在水分胁迫下质膜相对透性、丙二醛、可溶性糖含量及干旱胁迫下的RWD随胁迫时间的增加呈上升趋势;抗氧化保护酶中的SOD活性、叶绿素总含量及干旱胁迫下的相对含水量则呈下降趋势;CAT活性呈下降—上升—下降变化;可溶性蛋白含量为先下降而后上升。勘察加景天在20天的干旱和水涝胁迫其植株仍能生长良好,说明其对水分胁迫具有较强的忍耐能力。
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| 关 键 词： | 勘察加景天 水分胁迫 生理生化指标 适应性评价 |
Variation of Physiological and Biochemical Indexes on Sedum kamtschaticum Under Water Stress |
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| Li Binsheng,Zhou Yuqian,Wang Zhenyu,Pan Jie,Li Changhai.Variation of Physiological and Biochemical Indexes on Sedum kamtschaticum Under Water Stress[J].Forest By-product and Speciality in China,2010(3):4-7. |
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| Authors: | Li Binsheng Zhou Yuqian Wang Zhenyu Pan Jie Li Changhai |
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| Institution: | Li Binsheng1,Zhou Yuqian1,Wang Zhenyu2,Pan Jie1,Li Changhai1(1.Forest Botanical Garden of Heilongjiang,Harbin,150040,2.Northeast Forestry University) |
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| Abstract: | In order to understand Sedum kamtschaticum reaction and adaptability to water stress,the variation of physiological and biochemical indexes between drought and waterlogging of its were studied.The results showed that the plasma membrane permeability,MDA,soluble sugar contents in water stress and RWD in drought stress were developed as increasing of water stress level.But the SOD activity,the total content of chlorophyll in water stress and RWC in drought stress were decreased.The CAT activity trend was decr... |
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| Keywords: | Sedum kamtschaticum Water stress Physiological and biochemical indexes Adaptability |
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