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植物研究 ›› 2001, Vol. 21 ›› Issue (3): 413-415.

• 论文 • 上一篇    下一篇

干旱胁迫下白桦(Betula platyphylla)实生苗叶片的水分代谢与部分渗透调节物质的变化

孙国荣1, 张睿1, 姜丽芬2, 阎秀峰2   

  1. 1. 哈尔滨师范大学生物系, 哈尔滨 150080;
    2. 东北林业大学森林植物生态学开放研究实验室, 哈尔滨 150040
  • 收稿日期:2000-09-15 出版日期:2001-09-15 发布日期:2016-06-14
  • 作者简介:孙国荣(1964-), 男, 教授, 主要从事植物生理生态学研究。

WATER METABOLISM AND CHANGES OF SEVERAL OSMOTICAIN LEAVES OF BETULA PLATYPHYLLA SEEDLINGS UNDER DROUGHT STRESS

SUN Guo-rong1, ZHANG Rui1, JIANG Li-fen2, YAN Xiu-feng2   

  1. 1. Department of Biology, Harbin Normal University, Harbin 150080;
    2. Open Research Laboratory of Forest Plant Ecology, Northeast Forestry University, Harbin 150040
  • Received:2000-09-15 Online:2001-09-15 Published:2016-06-14

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。

关键词: 白桦(Betula platyphylla)实生苗, 干旱胁迫, 含水量, 束缚水含量, 自由水含量, 可溶性蛋白质含量, 可溶性糖含量

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.

Key words: seedlings of Betula platyphylla, drought stress, water content, bound water content, free water content, soluble protein content, soluble sugar content