霜霉病菌侵染对山葡萄“左山一”和“双丰”叶片光系统Ⅱ活性的影响  

Effect of Downy Mildew Infection on PSⅡ Photochemical Activity in Leaves of Vitis amurensis Rupr.of ‘Zuoshanyi’ and ‘Shuangfeng’

作　　者：王振兴[1] 许培磊[1] 范书田[1] 秦红艳[1] 李晓艳[1] 刘迎雪[1] 

机构地区：[1]中国农业科学院特产研究所,吉林吉林132109

出　　处：《北方园艺》2014年第17期16-19,共4页Northern Horticulture

基　　金：吉林省科技发展计划资助项目(20100249)

摘　　要：以"左山一"和"双丰"的1年生扦插苗为试材,利用快速叶绿素荧光诱导动力学曲线分析技术,研究了山葡萄叶片被霜霉病菌侵染后的光系统活性,以深入研究霜霉病对山葡萄影响的生理机理。结果表明:山葡萄叶片感病后,随着时间的延长,相对可变荧光在J点和I点的值Vj和Vi逐渐上升,电子传递受体侧受到伤害,不同品种间对霜霉病的抗性也存在差异,"左山一"较"双丰"更抗病。Taking Vitis amurensis Rupr.of ‘Zuoshanyi’ and ‘Shuangfeng’ annual cutting shoots as materials,activities of photosystem（PS）Ⅱin leaves under downy mildew infection were studied by simultaneously analyzing chlorophyll a fluorescence transient for lucubrating the physiological mechanism of downy mildew infection effects on amur grape.The results showed that the relative variable fluorescence Vjand Viincreased gradually as downy mildew developed,the acceptor side of PSⅡ was damaged.There were cultivars differences in the response of PSⅡ activity to downy mildew,the photosynthetic apparatus of‘Zuoshanyi’cultivar was more resistant to downy mildew than that of‘Shuangfeng’.

关 键 词：霜霉病 山葡萄 光系统Ⅱ 放氧复合体 

分 类 号：S663.1[农业科学—果树学]