| 阻抗谱法在侧柏干旱胁迫研究中的初步研究 |
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| 引用本文： | 郭林,刘跃华,高荣孚.阻抗谱法在侧柏干旱胁迫研究中的初步研究[J].山东林业科技,2010,40(5):1-5. |
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| 作者姓名： | 郭林 刘跃华 高荣孚 |
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| 作者单位： | 北京林业大学; |
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| 基金项目： | 北京林业大学自选课题资助基金 |
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| 摘 要： | 通过研究侧柏在干旱胁迫过程中阻抗谱的胞外电阻Re、胞内电阻Ri、细胞膜电容Cm、特征频率fc等参数的变化情况来分析其生理变化的机制。结果表明,在干旱胁迫下,胞外电阻Re和胞内电阻Ri逐渐增大,且胞外电阻Re增大的速率高于胞内电阻Ri。在停止供水后,随着侧柏幼枝含水量的逐渐降低,侧柏的细胞膜电容Cm先呈下降趋势,之后开始逐渐变大;在恢复供水后又随着侧柏幼枝含水量的逐渐升高而下降。同时,特征频率fc的变化与侧柏幼枝含水量的变化呈正相关。通过阻抗谱法与压力室法的比较可以发现,这两种方法的相关参数呈显著相关。
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| 关 键 词： | 阻抗谱 侧柏 抗旱 含水量 压力室法 |
Preliminary study on the impedance spectroscopy during drought resistant of Platycladus orientalis |
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| Guo Lin,Liu Yuehua,Gao Rongfu.Preliminary study on the impedance spectroscopy during drought resistant of Platycladus orientalis[J].Journal of Shandong Forestry Science and Technology,2010,40(5):1-5. |
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| Authors: | Guo Lin Liu Yuehua Gao Rongfu |
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| Institution: | Guo Lin,Liu Yuehua,Gao Rongfu(Beijing Forestry University,100083,Beijing) |
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| Abstract: | Impedance spectra parameters such as:Re,Ri,Cm and fc were investigated to illustrate the physiology mechanism of Platycladus orientalis during water-lossing process.It showed that the extracellular and intracellular resistance increased gradually,and the range of extracellular resistance was much higher than that of intracellular resistance.The membrane capacitance varies with the water content of the branch of P.orientalis during the drought stress process.It changed in the reverse way with the the water c... |
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| Keywords: | Impedance spectroscopy Platycladus orientalis drought stress water content pressure chamber method |
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