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 h逐渐升高,之后下降,PPO和PAL活性在处理后0～36 h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.3种酶活性与品种抗病性呈正相关关系.
关键词:
茄子黄萎病菌,
毒素,
酶活性
Abstract: T he effects of Verticillium dahliae toxin on POD, PALand PPO activities on the leaf from dif-ferent eggplant cultivars.The activities of POD, PALand PPO both resistant and susceptible cultivars were higher than that of the control.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 PALwas increasing within 0-36 h then decreasing gradually after treatment.As the toxin concentration of in-creasing, the activities of POD, PALand PPO increased rapidly at the beginning then decreased as well.There were a sig-nificant positive correlation between enzyme activities and disease resistance of eggplant cultivars.
Key words:
Verticillium dahliae,
Toxin ,
Enzyme activity
中图分类号:
赵明敏, 刘正坪, 胡俊. 茄子黄萎病菌毒素对茄子体内几种酶活性的影响[J]. 华北农学报, 2003, 18(2): 70-73. doi: 10.3321/j.issn:1000-7091.2003.02.019.
ZHAO Ming min, LIU Zheng ping, HU Jun. The Effects of Verticillium Dahliae Toxin on Some Enzyme Activities of Eggplant[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2003, 18(2): 70-73. doi: 10.3321/j.issn:1000-7091.2003.02.019.