| CO2激光预处理对PEG6000胁迫下小麦幼苗根中抗氧化酶活性的影响 |
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| 引用本文： | 邱宗波,朱凤荣,李金亭,郭君丽.CO2激光预处理对PEG6000胁迫下小麦幼苗根中抗氧化酶活性的影响[J].武汉植物学研究,2010,28(1):63-66. |
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| 作者姓名： | 邱宗波 朱凤荣 李金亭 郭君丽 |
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| 作者单位： | 1. 河南师范大学生命科学学院,河南新乡,453007
2. 新乡学院,河南新乡,453003 |
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| 基金项目： | 国家自然科学基金，河南省生物化学与分子生物学重点学科资助项目，河南师范大学青年科学基金 |
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| 摘 要： | 用CO2激光对小麦种子分别辐照0、1、3、5min,待其生长至12d时,用10%（W/V）PEG6000胁迫其幼苗,研究激光预处理对PEG6000水分胁迫下小麦幼苗根部脂质过氧化伤害的防护作用。结果表明,CO2激光预处理3min可使水分胁迫的小麦幼苗根部MDA、H2O2含量和O2.-产生速率显著降低（P〈0.05）,可显著提高（P〈0.05）小麦幼苗根部SOD、POD、CAT、APX活性和根长、根干重。激光预处理3min可抑制由水分胁迫引起的小麦幼苗根部脂质过氧化作用。
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| 关 键 词： | CO2激光 水分胁迫 小麦 根 抗氧化酶 |
Effects of CO_2 Laser Pretreatment on Activities of Antioxidative Enzymes in Root of Wheat Seedlings under Water Stress |
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| QIU Zong-Bo,ZHU Feng-Rong,LI Jin-Ting,GUO Jun-Li.Effects of CO_2 Laser Pretreatment on Activities of Antioxidative Enzymes in Root of Wheat Seedlings under Water Stress[J].Journal of Wuhan Botanical Research,2010,28(1):63-66. |
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| Authors: | QIU Zong-Bo ZHU Feng-Rong LI Jin-Ting GUO Jun-Li |
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| Institution: | QIU Zong-Bo1,ZHU Feng-Rong2,LI Jin-Ting1,GUO Jun-Li1(1. College of Life Science,Henan Normal University,Xinxiang,Henan 453007,China,2.Xinxiang College,Henan 453003,China) |
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| Abstract: | The objective of this experiment was to study changes of antioxidative enzymes and lipid peroxidation in root of wheat seedlings exposed to water stress,as affected by CO2 laser (wavelength 10600 nm,power density 20.1 mW/mm2) pretreatment.Wheat seed embryos were exposed to CO2 laser radiation for 0,1,3 min and 5 min,respectively,and when the seedlings were 12 days old they were treated with 10% (W/V) PEG6000 solution for 8 days.Changes in the concentration of malondialdehyde (MDA) and hydrogen peroxide (H2O... |
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| Keywords: | CO_2 laser Water stress Wheat Root Antioxidative enzymes |
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