【摘要】 分析了20个韭菜品种在受韭菜迟眼蕈蚊为害前后有关酶活性的变化,探讨了过氧化物酶(POD)、过氧化氢酶(CAT)及苯丙氨酸解氨酶(PAL)在韭菜抗虫中的作用。结果表明,不同韭菜品种在接虫前后,3种酶活性表现出不同程度的变化,其中POD和PAL在接虫后,酶活性都有所提高,但不同品种酶活性变化存在较大差异;CAT在接虫之后,不同品种的酶活性出现不同变化,其中汉中冬韭、竹竿青韭菜、赛松、豫韭1号和唐山紫根韭的CAT活性上升,而其他15个品种的CAT活性则下降。针对上述3种酶在20个韭菜品种中的变化状况,讨论了与抗虫性有关的问题。更多还原

【Abstract】 The article anlysized the changes of three enzymes of the 20 different Chinese chives damaged by Bradysia odoriphage Yang et Zhang,and discussied the effects of the POD、CAT and PAL during the Chinese chive’s resistance to the Bradysia odoriphage Yang et Zhang.The results showed that different Chinese chives had different changes after damaged by Bradysia odoriphage Yang et Zhang.The activity of POD and PAL increase remarkably,but the changes of cultivars are different.The activity of CAT had different changes.The activity of CAT of Hanzhong Winter leek 、Zhuganqing、Saisong、Yujiu-1 and Tangshan-Zigenjiu was increased,and the activity of CAT of the else of Chinese chives was decreased.更多还原