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应用聚丙烯酰胺凝胶电泳法对三月红、淮枝的焦核突变株系与对照株系及另２个品种（黑叶和糯米糍）进行了过氧化物酶（ＰＥＲ）和多酚氧化酶（ＰＰＯ）同工酶分析。结果表明：大核三月红和焦核三月红的叶片及枝皮的ＰＥＲ，ＰＰＯ同工酶均有区别，而淮枝上则未见明显差异；各荔枝品种及器官一般都具有各自的特异性酶谱；同一品种的幼叶与成熟叶的同工酶谱一般不完全相同，但同一品种的嫁接小苗与成年结果树的叶片同工酶谱则没有差别。
Peroxidase (PER) and polyphenol oxidase (PPO) were detected by polyacrylamide gel electrophoresis (SDS-PAGE) Enzyme (PPO) isoenzyme analysis. The results showed that the PER and PPO isozymes of leaves and branch bark of March nuclear red and Jiao nuclear March red were different, but there was no obvious difference on Huai Zhi; the litchi varieties and organs generally had their own The isozymes of young leaves and mature leaves of the same breed were not always the same, but there were no differences in the isozymes of leaves between grafted seedlings and adult trees of the same breed.