| 渗透胁迫对冰草保护酶系统活性的影响 |
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| 引用本文： | 罗新义,谭大海,沙伟. 渗透胁迫对冰草保护酶系统活性的影响[J]. 齐齐哈尔大学学报(自然科学版), 2005, 21(4): 94-96 |
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| 作者姓名： | 罗新义 谭大海 沙伟 |
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| 作者单位： | 黑龙江省畜牧研究所,齐齐哈尔,161041;齐齐哈尔大学生命科学与工程学院,齐齐哈尔,161006 |
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| 基金项目： | 齐齐哈尔市科技局农业攻关项目（02N06） |
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| 摘 要： | 研究了不同浓度PEG胁迫下冰草SOD、POD、CAT活性变化。结果表明：随胁迫强度的增大，保护酶活性的变化幅度增大；随着胁迫时间延长，SOD活性先下降后升高．POD活性升高，CAT活性先升高后降低，保护酶活性总体上维持较高水平。研究表明，冰草对渗透胁迫有较强的适应能力，具有较强的抗旱性。
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| 关 键 词： | 冰草 渗透胁迫 SOD POD CAT 抗旱性 |
| 文章编号： | 1007-984X(2005)04-0094-03 |
| 收稿时间： | 2005-08-30 |
| 修稿时间： | 2005-08-30 |
Effect of osmotic stress on activities of protective enzymes system in Agropyron cristatum |
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| LUO Xin-yi,TAN Da-hai,SHA Wei. Effect of osmotic stress on activities of protective enzymes system in Agropyron cristatum[J]. Journal of Qiqihar University(Natural Science Edition), 2005, 21(4): 94-96 |
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| Authors: | LUO Xin-yi TAN Da-hai SHA Wei |
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| Affiliation: | 1. Institute of Animal Science of Heilongjiang Province, Qiqihar 161041 ; 2. College of life Science and Engineering, Qiqihar University , Qiqihar 161006 |
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| Abstract: | This experiment studied the activity of SOD,POD and CAT of Agropyron cristatum under stress of different thickness of PEG. The result show that the activity of protective enzymes was increased with the raise of thickness PEG. The activity of SOD was decreased at beginning and increase later, the activity of POD was increased, and the activity of CAT was increased at beginning and decreased later. It is referred that Agropyron cristatum can resist drought strongly and take adaptive ability. |
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| Keywords: | Agropyron cristatum osmotic stress SOD POD CAT drought tolerance |
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