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نخستین کنفرانس بین المللی و دهمین کنگره ملی علوم باغبانی ایران
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
Study the Reactions of Powdery Mildew (Podosphaera pannosa) in Resistant and Susceptible Rose Genotypes and Their Segregating Progeny |
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| چکیده انگلیسی مقاله |
Rose is one of the most important ornamental plant in floriculture. Powdery mildew Podosphaera pannosa (Wallr.: Fr.) de Bary is one of the most important disease in garden and greenhouse grown roses. The relation between fungal development and plant resistance was investigated microscopically on young greenhouse leaves of two rose genotypes with different levels of resistance and on 90 progeny derived from a cross between these two genotypes and also on a selective interesting progeny. Two monoconidial pathotypes of powdery mildew including R-E and R-P with differing in virulence on roses were used for studying the plant defence mechanisms. The parent plants of this population ‘Yesterday’ and R. wichurana differ in resistance towards to two monoconidial powdery mildew isolates. R. wichurana shows partial resistance to the pathotypes R-E and R-P; ‘Yesterday’ is resistant to pathotype R-E but susceptibility to R-P. Segregation for resistance to the two powdery mildew isolates was studied in the offspring by a bio-assay and by a microscopy study of specific resistance mechanisms. Microscopic observations discriminated in more detail resistance mechanisms in the rose plants at different developmental stages of the fungus. Induced plant reactions, hydrogen peroxide production and cross sections through infected leaves were examined. The variation in development of the fungus on these rose genotypes depended on the relative presence of normal or abnormal haustoria, induced cell reactions, papilla formation or physical barriers. |
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| کلیدواژه‌های انگلیسی مقاله |
disease resistance, Podosphaera pannosa, R. wichurana, segregation, powdery mildew |
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| نویسندگان مقاله |
| Hossein Hosseini Moghaddam
Plant production department, Gonbad kavous University, Fallahy street
| Erik Van Bockstaele
Ghent University – Faculty of Bioscience Engineering – Department of Plant Production
| Johan Van Huylenbroeck
Institute for Agricultural and Fisheries Research (ILVO) – Plant Sciences Unit – Applied Genetics and Breeding
| Leen Leus
Institute for Agricultural and Fisheries Research (ILVO) – Plant Sciences Unit – Applied Genetics and Breeding
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| نشانی اینترنتی |
http://www.irhc2017.org |
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| زبان مقاله منتشر شده |
fa |
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