Wx基因对灌浆期小麦叶片SOD活性的影响  

Effect of Wx Genes on SOD Activity of Wheat Leaves at Filling Stage

作　　者：孔治有[1] 张玉荣 段修安[3] 覃鹏[4] 

机构地区：[1]保山学院资源环境学院,云南保山678000 [2]玉溪市农业科学院,云南玉溪653100 [3]保山市种子管理站,云南保山678000 [4]云南农业大学农学与生物技术学院,云南昆明650201

出　　处：《河南农业科学》2015年第5期35-37,共3页Journal of Henan Agricultural Sciences

基　　金：国家自然科学基金项目(31000712)

摘　　要：为研究Wx基因对小麦叶片SOD活性的影响,对8个Wx近等基因系灌浆期旗叶和倒2叶SOD活性进行了测定和分析。结果表明:Wx-D1基因的缺失可提高植株SOD活性,而Wx-A1和Wx-B1基因的缺失则无显著影响;Wx ABD丧失了所有Wx基因,但其SOD活性却相对更高,可能是几个Wx基因之间存在互作关系;旗叶SOD活性低于同时期倒2叶,SOD活性在不利环境中可能降低。In order to examine the effects of Wx genes on SOD activity of wheat leaves at grain filling stage,the SOD activities of flag leaf and top second leaf were measured in eight Wx near-isogenic wheat lines. The results showed that the absence of Wx-D1 gene could increase the SOD activity of leaves,but the absence of Wx-A1 and Wx-B1 genes had no significant effect. Although all Wx genes were absent,the SOD activity of WxABD was relatively higher,so there might be some interaction among the Wx genes. The SOD activity of flag leaf was lower than that of top second leaf in the same period,and it might decrease in the environmental stress.

关 键 词：小麦 Wx近等基因系 SOD活性 灌浆期 

分 类 号：S512.1[农业科学—作物学]