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以芍药种子为试材,测定其萌发过程中抗氧化酶活性的动态变化,分析探究芍药种子萌发过程中抗氧化酶活性变化规律。结果表明:超氧化物歧化酶(SOD)活性和过氧化物酶(POD)活性与种子萌发呈负相关,过氧化氢酶(CAT)活性与萌发呈正相关且处于缓慢上升状态。在吸胀12h左右时芍药种子开始萌发,且SOD活性较POD活性、CAT活性更早发挥作用。
The peony seeds were used as test materials to measure the dynamic changes of antioxidant enzyme activities during the germination process. The changes of antioxidant enzyme activities in the process of seed germination of Paeonia lactiflora were investigated. The results showed that the activities of superoxide dismutase (SOD) and peroxidase (POD) were negatively correlated with the seed germination. The activity of catalase (CAT) was positively correlated with the germination and slowly increased. Peony seeds began to germinate at about 12h of imbibition, and SOD activity played a role earlier than POD activity and CAT activity.