近年来国内外对同工酶的研究进行了大量的工作,证明同工酶普遍存在于生物界。同工酶在高等植物的不同发育阶段、不同器官、不同组织或细胞中表现出异质性和不同的代谢特点,因此,同工酶可以用为研究植物分化和发育变化的指标。除此而外,同工酶的研究也引起遗传学和育种学家的重视,尤其自采用凝胶电泳技术以来,把电泳图谱上的各个同工酶谱带看成是各自基因的直接产物,因此,同工酶可能将基因与外部性状联结起来,从而对遗传学和育种学发生多方面的作用。应用同工酶技术进行遗传基因定位、杂种优势预测和品种资源考查等方面, In recent years, a great deal of work has been done on the study of isoenzyme both at home and abroad, which proves that isozymes are ubiquitous in the biological world. Isoenzymes show heterogeneity and different metabolic characteristics in different organs, tissues and cells in different developmental stages of higher plants. Therefore, isozymes can be used as indicators to study plant differentiation and development. In addition, isoenzyme research has also attracted the attention of genetics and breeding experts, especially since the use of gel electrophoresis technology, the electrophoretic spectrum of each isozyme bands as a direct product of their genes, Therefore, isoenzymes may link genes with external traits and thus have multiple roles in genetics and breeding. The application of isoenzyme technology for genetic positioning, heterosis prediction and variety resources test and so on,