番茄褐斑病菌毒素对抗·感番茄品种的作用  

Effect of Helminthosporium carposaprum Toxin on Physiological indexes of Resistant and Susceptible Tomato Varieties

作　　者：陆宁海[1] 郭立季 吴利民[1] 徐瑞富[1] 

机构地区：[1]河南科技学院植物保护系,河南新乡453003 [2]河南省辉县市拍石头乡政府,河南辉县453600

出　　处：《安徽农业科学》2006年第22期5905-5906,共2页Journal of Anhui Agricultural Sciences

基　　金：农业部农业种植结构调整重大技术专项(03-07-02A)子项目;河南科技学院高层次人才科研资助项目(030109)

摘　　要：研究在番茄褐斑病菌毒素作用下,番茄抗、感病品种的根数、根长、芽长及根的电导值和PAL活性变化情况。结果表明:抗、感病番茄品种的根数、根长、芽长均受到抑制,根的电导值及叶片的苯丙氨酸解氨酶(PAL)活性升高;抗病品种的根数、根长、芽长受毒素的影响较感病品种小,即感病品种对毒素敏感,且抗、感病品种的电导值间差异达显著水平;抗病品种的PAL活性增加幅度较感病品种大。Tomato plants were treated by Helminthosporium carposaprum toxin to study the change of the root number, root length, shoot length, the electrical conduction rate （ECR） of root and activity of phenylalanine ammonia lyase （PAL） in cell.The results showed that the root number, root length, shoot length decreased, the ECR of root and activity of PAL increased. The suaceptible cultivars were more sensitive to toxin than resistant varieties. There was a significant difference in ECR between the resistant and susceptible varieties. PAL activity of resistant variety was increased larger than susceptible variety.

关 键 词：番茄褐斑病菌 毒素 抗病品种 感病品种 

分 类 号：S482.28[农业科学—农药学]