WANG Zhen-xing,XU Pei-lei,FAN Shu-tian,et al.Effect of Downy Mildew Infection on PSΠ Photochemical Activity in Leaves of Vitis amurensis Rupr.of ‘Zuoshanyi’ and ‘Shuangfeng’[J].Northern Horticulture,2014,38(17):16-19.
“双丰”叶片光系统Ⅱ活性的影响
- Title:
- Effect of Downy Mildew Infection on PSΠ Photochemical Activity in Leaves of Vitis amurensis Rupr.of ‘Zuoshanyi’ and ‘Shuangfeng’
- 文章编号:
- 1001-0009(2014)17-0016-04
- Keywords:
- downy mildew; Vitis amurensis Rupr.(amur grape) ; photosystem Ⅱ(PSⅡ); oxygen-evolving complex (OEC)
- 分类号:
- s663.1
- 文献标志码:
- A
- 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。
- Abstract:
- Taking Vitis amurensis Rupr.of ‘Zuoshanyi’ and ‘Shuangfeng’ annual cutting shoots as materials,activities of photosystem(PS)Ⅱ in 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 Vj?and Vi?increased 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’.
参考文献/References:
［1］李晓红,沈育杰,赵淑兰.山葡萄霜霉病发生规律及综合防治［J］.特产研究,2002(1):53-55.
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备注/Memo
第一作者简介：王振兴（1982-），男，河北邯郸人，硕士，研究实习员，现主要从事植物生理生态等研究工作。E-mail:zhenxinghd@yahoo.com.cn.