西瓜同工酶及可溶性蛋白分析

对京欣一号西瓜的亲本及杂种一代的几种同工酶系统及可溶性蛋白进行了分析。结果表明，在种子萌发过程中，过氧化物酶、酯酶和可溶性蛋白随发育阶段或营养状况的改变而改变；而在相同萌发时期，过氧物酶工酶、酯酶同工酶、过氧化氢酶同工酶和淀粉酶同工酶在亲本及杂种间未见差异，杂种的可溶性蛋白图谱表现与母本相同，而与父本有差异。此外，对６个品种的西瓜、非洲西瓜和瓠瓜的分析结果表明，非洲西瓜和瓠瓜的过氧化物酶酶谱、酯酶

An Analysis on Isozyme and Soluble Protein in Watermelon

Certain isozyme systems and soluble proteins were analyzed for Jinghn 1 hybrid and its parent plants.The results showed that peroxidase,esterase and soluble proteins changed with the growing stages and nutrition status during seed germination. However there were no differences between the hybrid and its parents in the isoenzymes of peroxidase,esterase,catalase and amylase in the same germination period,and no differences were found in the soluble protein maps of the hybrid and its maternal parent. Analyses on 6 cultivars of watermelon, African watermelon and gourd indicated that African watermelon and gourd were obviously different to the 6 cultivars of watermelon on the maps of peroaldase and esterase. Among 6 cultivars of watermelon some differences were found in peroxidase isozyme,while no significant differences were found in esterase isozyme. Peroxidase isozyme can be used in the identification of some cultivars of watermelon.