摘要
以不同抗病性品种的茄子幼苗为试材 ,研究了茄子黄萎病菌毒素对其叶片POD ,PAL及PPO活性变化的影响。结果表明 :抗、感病品种茄子幼苗用毒素处理后 ,POD ,PAL ,PPO活性均比未处理的对照有所提高 ,且随处理时间延长 ,其活性变化呈先升高 ,后降低趋势 ,即POD活性在处理后 0～ 2 4h逐渐升高 ,之后下降 ,PPO和PAL活性在处理后 0～ 36h升高 ,而后活性下降。随毒素浓度增加 ,POD ,PAL ,PPO活性变化也呈先升高后降低趋势。
The effects of Verticillium dahliae toxin on POD,PAL and PPO act ivitie s on the leaf from different eggplant cultivars. The activities of POD, PAL and PPO both resistant and susceptible cultivars were higher than that of the contro l. As the treat time expanding ,both of them increased rapidly at the beginning then decreased: the activity of POD was increasing within 0-24 h then decreasing , and the activities of PPO and PAL was increasing within 0-36 h then decreasing gradually after treatment. As the toxin concentration of increasing, the activi ties of POD, PAL and PPO increased rapidly at the beginning then decreased as we ll. There were a significant positive correlation between enzyme activities and disease resistance of eggplant cultivars.
出处
《华北农学报》
CSCD
北大核心
2003年第2期70-73,共4页
Acta Agriculturae Boreali-Sinica
基金
内蒙古自然科学基金资助项目 ( 2 0 0 0 13 0 3 )
