摘要
研究了18种小麦材料接种白粉菌前后叶片SOD、POD活性变化以及与白粉病抗性的关系。结果表明,接种白粉菌后抗性不同的小麦叶片SOD活性具有相似的变化趋势,叶片SOD活性与小麦白粉病抗性呈显著正相关r=0.575;叶片POD活性与小麦白粉病抗性有显著相关,接种前(0天)r=0.675,发病中期(6天)r=0.582,发病后期(12天)r=-0.708;抗性不同的小麦材料,在接种白粉菌前后叶片POD活性还呈现出明显不同的变化趋势。利用小麦叶片SOD和POD活性及变化进行小麦白粉病抗性材料的鉴定是可行的。
Analysis on 18 wheat varieties 12 days after inoculation with Erysiphe graminis f.sp.tritici showed that all wheat varieties with different resistances to wheat powdery midew had similar changes in superoxide dismutase (SOD) activity and was positively correlated with the resistance to wheat powdery mildew (r= 0.575).Peroxidase (POD) activities at 0 and 6 days after inoculation were positively correlated with the resistance to wheat powdery midew ( r=0.675 and r=582 ),respectively,while 12 days after inoculation,POD activity was negatively correlated with resistance (r= -708 ).It is suggested that changes of SOD and POD activities might be used as an important index to identify resistant varieties.
出处
《河南职业技术师范学院学报》
2004年第4期5-8,共4页
Journal of Henan Vocation-Technical Teachers College
