Hypersensitivity of plum genotypes to plum pox virus

被引:0
|
作者
Kegler, H
Grüntzig, M
Fuchs, E
Rankovic, M
Ehrig, F
机构
[1] Univ Halle Wittenberg, Inst Pflanzenzuchtung & Pflanzenschutz, D-06108 Halle, Germany
[2] Agr Res Inst SERBIA, Fruit & Grape Ctr Cacak, YU-32000 Cacak, Yugoslavia
[3] Bundesanstalt Zuchtungsforsch Kulturpflanzen Qued, Inst Resistenzforsch & Pathogendiagnost Aschersle, D-06449 Aschersleben, Germany
关键词
hypersensitive response; plum genotypes; plum pox virus; strains and isolates;
D O I
暂无
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
The hypersensitive response (HR) of plum hybrid K4 as an active defence mechanism is directed against certain plum pox virus (PPV) strains;isolates of the type CG but not against type DI. There is no clear correlation between the HR of K4 and serological differences of the PPV strains D, M and C, respectively. A total of lit genotypes out of 21 progenies of K4 reacted necrotically and were proved to be either hypersensitive and field resistant or highly sensitive and not field resistant. The HR can be connected with a complete or with an incomplete virus localization in K4 and some of its progenies. The remaining genotypes were more or less sensitive and tolerant, respectively, Growth of buds from PPV-CG-infected plum cultivars on K4 differed in the degree of systemic virus invasion in the plant as a trait of quantitative virus resistance, The percentage of growing buds correlated with the level of quantitative PPV resistance.
引用
收藏
页码:213 / 218
页数:6
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