| 干旱胁迫下白桦（Betula plathphylla）实生苗叶片的水分代谢与部分渗透调节物质的变化 |
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| 引用本文： | 孙国荣,张睿,姜丽芬,阎秀峰.干旱胁迫下白桦（Betula plathphylla）实生苗叶片的水分代谢与部分渗透调节物质的变化[J].植物研究,2001,21(3):413-415. |
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| 作者姓名： | 孙国荣 张睿 姜丽芬 阎秀峰 |
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| 作者单位： | 1. 哈尔滨师范大学生物系,
2. 东北林业大学 |
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| 摘 要： | 在土壤干旱胁迫进程中，白桦实生苗叶片的自然含水量呈下降趋势；相对含水量的总的变化趋势与自然含水量相同；束缚水含量及束缚水/自由水比值显著升高，复水后，三者又重新恢复至正常水平。随着土壤水分逐渐减少，可溶性蛋白质的含量呈现减少趋势，复水后，可溶性蛋白质含量又可恢复至正常水平。白桦实生苗叶片可溶性糖含量增加，复水后可溶性糖含量降至趋于对照水平。
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| 关 键 词： | 白桦 实生苗 干旱胁迫 含水量 束缚水含量 自由水含量 可溶性蛋白 可溶性糖含量 |
| 修稿时间： | 2000年9月15日 |
WATER METABOLISM AND CHANGES OF SEVERAL OSMOTICAIN LEAVES OF BETULA PLATYPHYLLA SEEDLINGS UNDER DROUGHT STRESS |
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| SUN Guo-rong,ZHANG Rui,JIANG Li-fen,YAN Xiu-feng.WATER METABOLISM AND CHANGES OF SEVERAL OSMOTICAIN LEAVES OF BETULA PLATYPHYLLA SEEDLINGS UNDER DROUGHT STRESS[J].Bulletin of Botanical Research,2001,21(3):413-415. |
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| Authors: | SUN Guo-rong ZHANG Rui JIANG Li-fen YAN Xiu-feng |
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| Institution: | SUN Guo-rong 1 ZHANG Rui 1 JIANG Li-fen 2 YAN Xiu-feng 2 |
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| Abstract: | During soil drought stress, nature water content of seedlings leaves of Betula platyphylla decreased, the changes of relative water content of which was same as nature water content. Bound water content and the ratio of bound water content and free water content increased significantly, along with the decrease of soil water, soluble protein content decreased and soluble sugar content increased, after soil water was recovered, all of which returned to normal level. |
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| Keywords: | seedlings of Betula platyphylla drought stress water content bound water content free water content soluble protein content soluble sugar content |
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