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学科主题: Plant Sciences; Marine & Freshwater Biology
题名: EFFECTS OF LOW-TEMPERATURE AND PHYSIOLOGICAL AGE ON SUPEROXIDE-DISMUTASE IN WATER HYACINTH (EICHHORNIA-CRASSIPES SOLMS)
作者: Xuebao Li ; Zhenbin Wu ; Guangyuan He
关键词: CATALASE
刊名: AQUATIC BOTANY
发表日期: 1995
卷: 50, 期:2, 页:193-200
收录类别: SCI
部门归属: NORMAL UNIV CENT CHINA,DEPT BIOL,WUHAN 430070,PEOPLES R CHINA; CHINESE ACAD SCI,INST HYDROBIOL,WUHAN 430072,PEOPLES R CHINA; CHINESE ACAD SCI,WUHAN INST BOT,WUHAN 430074,PEOPLES R CHINA
摘要: Superoxide dismutase activity in water hyacinth leaves was not sensitive to small changes in environmental pH, but declined markedly with greater pH changes. KCN inhibited superoxide dismutase activity, suggesting that the enzyme was mainly composed of the Cu-Zn form. Low temperature (2-degrees-C) treatment caused a decline in superoxide dismutase activity. This effect became more pronounced as the treatment time was prolonged. Furthermore, the decline was much more significant than reductions of glucose-6-phosphate dehydrogenase activity or respiration under comparable conditions. With increasing physiological age, superoxide dismutase activity declined and was significantly lower in old than in young leaves. Therefore, superoxide dismutase activity might be employed as one of physiological parameters in studying leaf senescence.
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/10304
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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Xuebao Li; Zhenbin Wu; Guangyuan He.EFFECTS OF LOW-TEMPERATURE AND PHYSIOLOGICAL AGE ON SUPEROXIDE-DISMUTASE IN WATER HYACINTH (EICHHORNIA-CRASSIPES SOLMS),AQUATIC BOTANY,1995,50(2):193-200
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文件名: EFFECTS OF LOW-TEMPERATURE AND PHYSIOLOGICAL AGE ON SUPEROXIDE-DISMUTASE IN WATER HYACINTH (EICHHORNIA-CRASSIPES SOLMS).pdf
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