干旱胁迫对小麦幼苗过氧化物酶同工酶的影响  

Effect of Drought Stress on Peroxidase Isoenzyme of Wheat Seedlings

作　　者：裴冬丽[1,2] 

机构地区：[1]商丘师范学院生命科学系/植物与微生物互作重点实验室,河南商丘476003 [2]河南农业大学农学院,郑州450002

出　　处：《湖北农业科学》2011年第8期1530-1532,共3页Hubei Agricultural Sciences

基　　金：河南省科技发展计划国际合作项目(084300510076);河南省科技厅基础与前沿技术项目(082300430320)

摘　　要：以河南广泛种植的4个小麦品种幼苗为材料,采用聚丙烯酰胺凝胶电泳技术,研究了经干旱处理后,4种小麦幼苗根和叶的过氧化物酶同工酶谱及酶活性的变化。结果表明,4种小麦根和叶过氧化物酶同工酶酶带分为A区、B区、C区。在干旱胁迫下,酶带数目增加,且A、B、C 3个区酶带均有不同程度的加深。干旱胁迫后,4个品种小麦幼苗根和叶中POD活性显著增强。Taking the seedlings of four wheat varieties that widely adopted in wheat production of Henan as experimental materials,the effects of drought treatment on POD activity and isozyme patterns of roots and leaves of wheat seedlings were studied by the method of PAGE.The results showed that the POD isoenzyme bands in the roots and leaves of four wheat varieties were divided into region A,region B and region C.Under the drought stress,the numbers of POD isoenzyme bands increased and the bands of three regions were strengthened.After drought treatment,POD activitys in the roots and leaves of wheat seedlings were highly increased.

关 键 词：干旱胁迫 小麦 过氧化物同工酶 

分 类 号：S512.1[农业科学—作物学] Q945.78[生物学—植物学]