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EFFECTS OF LOW-TEMPERATURE AND PHYSIOLOGICAL AGE ON SUPEROXIDE-DISMUTASE IN WATER HYACINTH (EICHHORNIA-CRASSIPES SOLMS)
Xuebao Li; Zhenbin Wu; Guangyuan He
1995
Source PublicationAQUATIC BOTANY
Volume50Issue:2Pages:193-200
AbstractSuperoxide 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.
KeywordCatalase
DepartmentNORMAL 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
Subject AreaPlant Sciences ; Marine & Freshwater Biology
Indexed BySCI
WOS IDWOS:A1995RD49800007
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/10304
Collection期刊论文
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GB/T 7714
Xuebao Li,Zhenbin Wu,Guangyuan He. EFFECTS OF LOW-TEMPERATURE AND PHYSIOLOGICAL AGE ON SUPEROXIDE-DISMUTASE IN WATER HYACINTH (EICHHORNIA-CRASSIPES SOLMS)[J]. AQUATIC BOTANY,1995,50(2):193-200.
APA Xuebao Li,Zhenbin Wu,&Guangyuan He.(1995).EFFECTS OF LOW-TEMPERATURE AND PHYSIOLOGICAL AGE ON SUPEROXIDE-DISMUTASE IN WATER HYACINTH (EICHHORNIA-CRASSIPES SOLMS).AQUATIC BOTANY,50(2),193-200.
MLA Xuebao Li,et al."EFFECTS OF LOW-TEMPERATURE AND PHYSIOLOGICAL AGE ON SUPEROXIDE-DISMUTASE IN WATER HYACINTH (EICHHORNIA-CRASSIPES SOLMS)".AQUATIC BOTANY 50.2(1995):193-200.
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