利用聚丙烯酰胺垂直平板凝胶电泳技术，对紫花地丁和早开堇菜的种子、叶片及地下茎进行ＰＯＤ和ＳＯＤ同工酶分析。结果表明，紫花地丁和早开堇菜种子ＳＯＤ、ＰＯＤ同工酶谱相近，而叶部ＰＯＤ同工酶、根部ＳＯＤ和ＰＯＤ同工酶又存在明显差异，说明这两种植物亲缘关系很近，仅在遗传特性上有差别 POD and SOD isoenzymes were analyzed using polyacrylamide vertical plate gel electrophoresis on seeds, leaves and underground stems of Viola yedoensis and A. dahurica. The results showed that the isoenzymes of SOD and POD in V. violaceum and A. dahurica seeds were similar, but there were significant differences in the isozymes of POD and SOD between POD isoenzymes and roots, indicating that the genetic relationship between these two plants was very close , Only in the genetic characteristics of the difference