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过氧化物酶同工酶在各植物种和品种之间存在着明显的差异,同工酶区带数随着物种和品种而变,不论在常温或低温下,一般抗冷性强的比抗冷性弱的多出1～6条区带。低温处理后水稻、黄瓜、龙舌兰麻各品种均可观察到显著的变化,除皮带麻低温处理后同工酶区带减少,某些区带活性减弱外,其余各品种均出现1～3条新的同工酶区带,越耐冷的品系区带活性越大。酯酶同工酶在低温下,除水稻的珍珠矮酶谱的区带数不变,皮带麻某些同工酶区带减少外,其余品种有些出现了新的同工酶区带,有些区带则增强了活性。试验结果表明植物过氧化物酶的活性和同工酶区带数明显地受温度所影响,而酯酶受低温影响相对比较稳定。过氧化物酶和酯酶同工酶区带的数目及其相对活性的改变似乎与植物的抗冷力有关,亦即植物对不良温度抵抗力的水平与植物酶系统的合成和它的功能活性的改变有关。
Peroxidase isoenzyme in each species and there is a significant difference between varieties, isozyme zone number with the species and variety of change, whether at room temperature or low temperature, the general resistance to cold than the specific resistance Cold weak more 1 to 6 zones. After low temperature treatment, significant changes were observed in all varieties of rice, cucumber and agave, with the decrease of isozymes and the decrease of isozymes in some zones except for the low temperature treatment of leprosy, while the others showed 1 ~ 3 The new isoenzyme zone, the more cold the more active strain zone. Esterase isozymes at low temperature, in addition to the pearl paddy zymogram of the same number of bands unchanged, some of the isozyme belt hemp band to reduce the rest of the varieties of some new isoenzyme zone, and some areas Bands enhance activity. The results showed that the activity of plant peroxidase and the number of isoenzyme bands were significantly affected by temperature, while the esterase was relatively stable under the influence of low temperature. The changes in the number of peroxidase and esterase isoenzymes and their relative activities appear to be related to the cold tolerance of plants, ie the level of plant resistance to adverse temperature resistance and the synthesis of the plant enzyme system and its functional activity Related to the change.