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水分胁迫对2种牧草幼苗脯氨酸及过氧化氢酶活性的影响
引用本文:刘建宁,赵美清,王运琦,郭璞,李宝.水分胁迫对2种牧草幼苗脯氨酸及过氧化氢酶活性的影响[J].山西农业科学,2009,37(6):27-29.
作者姓名:刘建宁  赵美清  王运琦  郭璞  李宝
作者单位:1. 山西省农业科学院畜牧兽医研究所,山西,太原,030032
2. 山西省牧草工作站,山西,太原,030001
基金项目:国家科技支撑计划,山西省国际科技合作项目,山西省攻关项目 
摘    要:采用聚乙二醇高渗溶液模拟水分胁迫方法,研究了水分胁迫对红豆草、无芒雀麦2种牧草幼苗游离脯氨酸(Pro)和过氧化氢酶(CAT)活性的影响。结果表明,在水分胁迫下,2种牧草幼苗Pro含量和CAT活性的变化均呈斜抛物线趋势,即胁迫初期缓慢上升,到达一定胁迫程度后快速下降。

关 键 词:脯氨酸  过氧化氢酶  水分胁迫  红豆草  无芒雀麦

Effects of Soil Water Stress to the Proline and Catalase Characteristics in Two Forage Species at Seedling Stage
LIU Jian-ning,ZHAO Mei-qing,WANG Yun-qi,GUO Pu,LI Bao.Effects of Soil Water Stress to the Proline and Catalase Characteristics in Two Forage Species at Seedling Stage[J].Journal of Shanxi Agricultural Sciences,2009,37(6):27-29.
Authors:LIU Jian-ning  ZHAO Mei-qing  WANG Yun-qi  GUO Pu  LI Bao
Abstract:The effects of soil water stress to the activity of dissociative proline(Pro) and catalase(CAT) in two forage varieties of sainfoin and smooth brome were studied in the use of hyperosmotic solution Polyethyleneglycol(PEG-4000,-870 kPa) to simulate soil water stress.As showed in the experiment result,the two forages at seedling stage had similar trend of variance trend under water stress-both changing in declined parabola pattern,that is,the value increases at the early stage of water stress and then declines fast after the water stress has climbed to certain degree.
Keywords:Proline  Catalase  Water stress  Sainfoin  Smooth brome
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