摘要
以抗病油菜品种７８３和感病品种８４０３９为材料，４叶期进行１０ｍｍｏｌ／Ｌ草酸浸根处理不同时间后，对其３种酶活性进行测定。结果表明，抗病品种７８３的过氧化物酶（ＰＯＤ）、多酚氧化酶（ＰＰＯ）和超氧化物歧化酶（ＳＯＤ）活性高于感病品种８４０３９。２个品种叶片中ＰＯＤ、ＳＯＤ的活性都比各自的清水对照高，且抗病品种增加幅度大于感病品种，而ＰＰＯ活性却下降。说明这３种酶在油菜对核盘菌草酸毒素的抗性表达过程中有重要生理生化作用，在抗病育种中可能作为生理指标加以利用。
Oxalic acid is a toxin secreted by Sclerotinia sclerotiorum. The activities of three enzymes were measured at different time after 10 mmol/L oxalic acid treatment during the four leaf stages. The results showed that there were some differences in the activities of POD,PPO and S0D between the two rapeseed varieties. The activities of the three enzymes in the resistant variety 783 were higher than that of the susceptible variety 84039. The activities of POD and SOD in the two rapeseed varieties under oxalic acid treament were higer than that in their own check, and the increasing extent of the resistant variety was greater than that of the susceptible variety, but the activity of the PPO decreased. These results indicated these three enzymes played an important role in the resistant reaction to toxin oxalic acid, and they might be used as physiological criteria in rapeseed resistant breeding.
出处
《华中农业大学学报》
CAS
CSCD
北大核心
1998年第1期10-13,共4页
Journal of Huazhong Agricultural University
基金
国家自然科学基金
关键词
油菜
草酸
核盘菌
酶活性
品种抗性
rapeseed, oxalic acid, Sclerotinia sclerotiorum, the enzyme activity
