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林业科学 ›› 2003, Vol. 39 ›› Issue (1): 165-167.doi: 10.11707/j.1001-7488.20030127

• 研究简报 • 上一篇    下一篇

干旱胁迫对白桦实生苗保护酶活性及脂质过氧化作用的影响

孙国荣 彭永臻 阎秀峰 张睿 姜丽芬   

  1. 哈尔滨工业大学市政环境工程学院,哈尔滨150006;扬州大学生物科学与技术学院,扬州225009;东北林业大学森林植物生态学开放研究实验室,哈尔滨150040;哈尔滨师范大学生物系,哈尔滨150080
  • 收稿日期:2001-04-02 修回日期:1900-01-01 出版日期:2003-01-25 发布日期:2003-01-25

EFFECT OF DROUGHT STRESS ON ACTIVITY OF CELL DEFENSE ENZYMES AND LIPID PEROXIDATION IN LEAVES OF BETULA PLATYPHYLLA SEEDLINGS

Sun Guorong,Peng Yongzhen,Yan Xiufeng   

  1. School of Municipal and Environmental Engineering,Harbin Institute of Technology\ Harbin150006;Open Research Laboratory of Forest Plant Ecology,Northeast Forestry University\ Harbin150040;Department of Biology,Harbin Normal University\ Harbin150080
  • Received:2001-04-02 Revised:1900-01-01 Online:2003-01-25 Published:2003-01-25

关键词: 白桦实生苗, 干旱胁迫, 保护酶, 组织自动氧化速率

Abstract:

The active oxygen content, MDA content and electrolyte leakage in the leaves of Betula platyphylla seedlings increased under the soil drought stress. Activity of cell defense enzymes changed markedly when the stress of draught was intensified. SOD activity increased then decreased, POD activity decreased and CAT activity decreased then increased. All above physiological index returned to approach the normal level before stress after the water of soil was recovered.

Key words: Drought stress, Betula platyphylla, Cell defense enzymes, Autoxidation rate