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5. 盐碱协同胁迫对向日葵抗氧化酶系统的影响(英文)

盐碱协同胁迫对向日葵抗氧化酶系统的影响(英文)

来源 :中国生物化学与分子生物学报 | 被引量 : 23次 | 上传用户：JACK910680

【摘 要】

：

根据中国东北盐碱土壤特点,将4种盐NaCl、NaHCO3、Na2SO4和Na2CO3按不同比例混合,模拟出25种盐度和pH值各不相同的复杂盐碱条件(盐浓度为50~250mmol/L,pH值为7.12~10.46),并对向日葵苗进行盐碱混合胁迫处理,研究了向日葵超氧化物歧化酶(SOD)、过氧化氢酶(CAT)和过氧化物酶(POD)酶等抗氧化酶系统和丙二醛(MDA)的盐碱协同胁迫效应.结果表明,向日葵抗

【作 者】

：

盛艳敏 尹金植 石德成 王得利 

【出 处】

：

中国生物化学与分子生物学报

【发表日期】

：

2008年08期

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论文部分内容阅读

根据中国东北盐碱土壤特点,将4种盐NaCl、NaHCO3、Na2SO4和Na2CO3按不同比例混合,模拟出25种盐度和pH值各不相同的复杂盐碱条件(盐浓度为50~250mmol/L,pH值为7.12~10.46),并对向日葵苗进行盐碱混合胁迫处理,研究了向日葵超氧化物歧化酶(SOD)、过氧化氢酶(CAT)和过氧化物酶(POD)酶等抗氧化酶系统和丙二醛(MDA)的盐碱协同胁迫效应.结果表明,向日葵抗氧化物酶活性强弱同时与盐度和碱度密切相关,3种抗氧化物酶活性对于盐浓度的反应相似,均为其含量随着盐浓度的

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