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41.

Infection Structures on the Infected Leaves of Potato Pre-inoculated with Bacterial Strains and DL-3-amino Butyric Acid after Challenge Inoculation with Phytophthora infestans

한국식물병리학회 The Plant Pathology Journal 7 Pages

한국식물병리학회 The Plant Pathology Journal 2007, 23권 3호 10 203-209 (7 pages)

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42.

Genetic Diversity of Sweet potato feathery mottle virus from Sweet Potatoes in Korea

한국식물병리학회 The Plant Pathology Journal 9 Pages

한국식물병리학회 The Plant Pathology Journal 2007, 23권 1호 3 13-21 (9 pages)

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Sweet potato feathery mottle virus (SPFMV) is one of the most prevalent viruses infecting sweet potatoes and occurs widely in sweet potato cultivating areas in Korea. To assess their genetic variation, a total of 28 samples infected with SPFMV were subjected to restriction fragment length polymorphism (RFLP) analysis using DNAs amplified by RT-PCR with specific primer sets corresponding to the coat protein (CP) region of the virus. The similarity matrix by UPGMA procedure indicated that 28...
43.

Note : Agroinfiltration-based Potato Virus X Replicons to Dissect the Requirements of Viral Infection

한국식물병리학회 The Plant Pathology Journal 5 Pages

한국식물병리학회 The Plant Pathology Journal 2006, 22권 4호 15 386-390 (5 pages)

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performed in in vitro transcription system using the bacteriophage T7 promoter. We constructed an efficient T-DNA based binary vector, pSNU1, and modified vectors carrying PVX replicons. The suitability of the construct to transiently express PVX RNA using Agrobacterium tumefaciens was tested by analysis of infectivity in plants. The expressed PVX RNA was infectous and systemically spread in three plant species including Nicotiana benthamiana, N. tabacum cv. Xanthi-nc, and Capsicum annuum cv....
44.

Bacillus vallismortis Strain EXTN-1 Mediated Systemic Resistance against Potato virus Y and X in the Field

한국식물병리학회 The Plant Pathology Journal 4 Pages

한국식물병리학회 The Plant Pathology Journal 2006, 22권 4호 10 360-363 (4 pages)

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potato as increase in yield and chlorophyll content, and plant protection against Potato Virus Y and X (PVY & PVX). EXTN-1 induced systemic resistance to the plants resulting in significant disease suppression in the field. Also the plants under treatment with EXTN-1 had higher chlorophyll content. The bacterized plants had significantly higher yields over the untreated control plants. The strain induced activation of defense genes, PR-1a and PDF 1.2 in transgenic tobacco model, which indicated...
45.

Cis-acting Elements in the 3` Region of Potato virus X are Required for HostProtein Binding

한국식물병리학회 The Plant Pathology Journal 8 Pages

한국식물병리학회 The Plant Pathology Journal 2006, 22권 2호 6 139-146 (8 pages)

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of Potato virus X (PVX) has the 74 nt 3`- nontranslated region (NTR) that is conserved among all potexviruses and contains several cis-acting elements for minus-strand and plus-strand RNA accumulation. Three stem-loop structures (SL1-SL3), especially formation of SL3 and U-rich sequence of SL2, and near upstream elements in the 3` NTR were previously demonstrated as important cis-acting elements. To investigate the binding of these cis-acting elements within 3` end with host protein, we used the...
46.

Characteristics of Potato virus Y Isolated from Paprika in Korea

한국식물병리학회 The Plant Pathology Journal 6 Pages

한국식물병리학회 The Plant Pathology Journal 2005, 21권 4호 8 349-354 (6 pages)

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Potato virus Y (PVY) based on biological, serological, cytopathological, and molecular properties. In host range studies, the paprika isolate produced the mosaic symptom on some tobacco, tomato and pepper (Capsicum annuum). A new paprika isolate also infected potato cultivars which is different biological characteristic compared to the other popular potyvirus infecting paprika, Pepper mottle virus (PepMoV). Previously reported PVY strains, PVYO and PVYN did not infect pepper and typical PepMoV...
47.

Convenient Assay of O2 - Generated on Potato Tuber Tissue Slices Treated with Fungal Elicitor by Electron Spin Resonance - No Secondary Oxidative Burst Induction by H2O2 Treatment

한국식물병리학회 The Plant Pathology Journal 5 Pages

한국식물병리학회 The Plant Pathology Journal 2005, 21권 3호 13 283-287 (5 pages)

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system responsible for the OXB was coupled with oxidation of reduced nicotinamide adenine dinucleotide phosphate (NADPH) in microsomal fraction isolated from sliced aged potato tuber slices which were treated by hyphal wall components elicitor from Phytophthora infestans (HWC). We developed new assay method for quantitative measurement of oxygen radical O2 - by using electron spin resonance (ESR) analysis during elicitorinduced OXB on the surface of plant tissues. The ESR analysis using an O2 -...
48.

Characterization of Korean Erwinia carotovora Strains from Potato and Chinese Cabbage

한국식물병리학회 The Plant Pathology Journal 6 Pages

한국식물병리학회 The Plant Pathology Journal 2004, 20권 4호 10 283-288 (6 pages)

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Four Erwinia carotovora strains isolated from potatoes showing blackleg symptoms and rotted Chinese cabbage were analysed by biochemical tests and sequence analysis of 16S rDNA and 16S-23S rRNA intergenic spacer (IGS) regions, and the data were compared to related E. carotovora strains. Based on the results of the biochemical tests and sequence analysis, 2 of the 4 strains were identified as E. carotovora subsp. carotovora (Ecc), whereas the rest strains were distinct from Ecc. The last two...
49.

Cultural and Rainfall Factors Involved in Disease Development of Fusarium Wilt of Sweet Potato

한국식물병리학회 The Plant Pathology Journal 5 Pages

한국식물병리학회 The Plant Pathology Journal 2004, 20권 2호 3 92-96 (5 pages)

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weather conditions affecting Fusarium wilt of sweet potato were investigated in major sweet potato cultivation regions in Korea. Fusarium wilt occurred mainly in reclaimed terracing lands, which are flattened and located in hilly to mountainous areas at the base of the mountain, in early seasonal cultivation regions. Disease severity was lower in reclaimed fields with natural slope. The development of Fusarium wilt in the fields was highly correlated with precipitation during planting period (r...
50.

Occurrence of Potato Powdery Scab Caused by Spongospora subterranea in Korea

한국식물병리학회 The Plant Pathology Journal 4 Pages

한국식물병리학회 The Plant Pathology Journal 2003, 19권 6호 4 284-287 (4 pages)

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Potato tubers with scab lesions were found in several regions of Gangwon province in Korea during disease surveys in 2000 and 2001. The lesions appeared as shallow scabs with torn and raised skin around the periphery of the lesion. Sometimes the lesions expanded on tuber surface and formed hollowed-out areas. The causal organism was identified as Spongospora subterranea based on morphological characteristics using light and electron microscope. Ten cultivars of potato were evaluated to select...

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