不同品种猕猴桃的蔗糖酶及α-淀粉酶活性与抗溃疡病的关系  

Invertase and α-Amylase Activities and Their Relationship with Bacterial Canker (Pseudomonas syringae pv. actinidae) in Kiwifruit of Different Cultivars

作　　者：李淼[1] 檀根甲[1] 李瑶[2] 承河元[1] 邱坤[1] 韩翔[1] 

机构地区：[1]安徽农业大学植物保护学院,合肥230036 [2]安徽农业大学园艺学院,合肥230036

出　　处：《植物生理学通讯》2005年第2期148-152,共5页Plant Physiology Communications

基　　金：安徽省重点科研项目;安徽省教育厅自然科学研究项目(95-农-18)。

摘　　要：抗病品种猕猴桃的枝条和叶片中蔗糖酶活性始终低于感病品种。自然发病后,感、抗病品种枝条与叶片中蔗糖酶活性都呈上升趋势,但感病品种比抗病品种酶活性上升得更快,增幅较大,抗病品种蔗糖酶活性增幅不明显。α-淀粉酶活性的变化规律基本上与蔗糖酶一致。抗感病品种均有3条α-淀粉酶同工酶谱带。自然感病后,抗病品种枝条及叶片的酶带增加不明显,仅多1条极弱的酶带;感病品种没有明显变化。Invertase and α-amylase activities in the annual twig and foliage of resistant cultivars of kiwifruit (Actinidia chinensis) were lower than those of susceptible cultivars before infection. After infection, invertase and α-amylase activities in the annual twig and foliage all increased, but the increment of invertase and α- amylase activities in susceptible cultivars was higher than that in resistant cultivars. Three distinct bands of α- amylase isozyme appeared in both resistant and susceptible cultivars pre-infection, and after natural infection, only one light band in resistant cultivars was obtained, and no changes in susceptible cultivars were recorded.

关 键 词：Α-淀粉酶活性 猕猴桃 抗溃疡病 蔗糖酶活性 抗病品种 同工酶谱带 抗感病品种 上升趋势 变化规律 自然感病 叶片 枝条 增幅 酶带 发病 

分 类 号：S436.63[农业科学—农业昆虫与害虫防治]