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Chemical and Biological Controls of Balloon Flower Stem Rots Caused by Rhizoctonia solani and Sclerotinia sclerotiorum
한국식물병리학회 The Plant Pathology Journal 8 Pages
한국식물병리학회 The Plant Pathology Journal 2012, 28권 2호 4 156-163 (8 pages)
Stem rots caused by Rhizoctonia solani and Sclerotinia sclerotiorum have been known as devastating diseases in balloon flower plants. Antifungal activities of four fungicides, azoxystrobin, polyoxin B, trifloxystrobin and validamycin A were evaluated in vitro, showing effective suppression with mycelial growth of the fungal isolates on PDA media. Efficacies of the four fungicides were also demonstrated in stem tissues of balloon flower plants against R. solani and S. sclerotiorum. A commercially... -
Molecular Characterization of Fusarium Graminearum Virus 2 Isolated from Fusarium graminearum Strain 98-8-60
한국식물병리학회 The Plant Pathology Journal 6 Pages
한국식물병리학회 The Plant Pathology Journal 2011, 27권 3호 11 285-290 (6 pages)
Fusarium graminearum virus 2 (FgV2) infects Fusarium graminearum strain 98-8-60 and has at least five segments of double-stranded RNAs (dsRNAs), denoted as dsRNA-1 to dsRNA-5. In this study, the genome of FgV2 was sequenced and its phylogenetic relationship with other mycoviruses was analyzed. The lengths of FgV2 dsRNAs 1-5 ranged from 2414 to 3580 base pairs (bp). The 5` and 3` untranslated regions (UTRs) are highly conserved, and each dsRNA segment had 78-105 and 84-306 bp of 5` and 3` UTRs,... -
Evaluation of the Biocontrol Potential of Some Medicinal Plant Materials Alone and in Combination with Trichoderma harzianum Against Rhizoctonia solani AG 2-1
한국식물병리학회 The Plant Pathology Journal 10 Pages
한국식물병리학회 The Plant Pathology Journal 2011, 27권 1호 11 68-77 (10 pages)
Fifty five species of medicinal plant materials were tested for their antifungal activity in vitro against Rhizoctonia solani AG 2-1 and Trichoderma harzianum to select plant species that can be used to improve the biocontrol efficacy of T. harzianum. Six species were effective against R. solani AG 2-1 but were also antagonistic to T. harzianum, except for Cinnamomum loureirii stem bark (CSB). CSB inhibited mycelial growth of R. solani AG 2-1 by 73.7% but showed an inhibitory effect on mycelial... -
Effect of Alternaria solani Exudates on Resistant and Susceptible Potato Cultivars from Two Different pathogen isolates
한국식물병리학회 The Plant Pathology Journal 6 Pages
한국식물병리학회 The Plant Pathology Journal 2011, 27권 1호 3 14-19 (6 pages)
Early blight of potato, caused by Alternaria solani, is a ubiquitous disease in many countries around the world. Our previous screening of several Iranian potato cultivars found that significant variation in resistance phenotypes exists between two cultivars: resistant ``Diamond`` and susceptible ``Granula``. Our previous analysis of five different pathogen isolates also identified varying degrees of aggressiveness regardless of the host cultivar. Here, a bioassay was used to study the role of... -
Suppression of Green and Blue Mold in Postharvest Mandarin Fruit by Treatment of Pantoea agglomerans 59-4
한국식물병리학회 The Plant Pathology Journal 7 Pages
한국식물병리학회 The Plant Pathology Journal 2010, 26권 4호 8 353-359 (7 pages)
In order to control postharvest spoilage of satsuma mandarin fruits, rhizobacteria were isolated from soil samples. The Pantoea agglomerans strain 59-4 (Pa 59-4) which suppresses the decay of mandarin fruit by green and blue mold, was tested for the control efficacy and its mode of action was investigated. Pa 59-4 inhibited infection by green and blue mold on wounded mandarins, which were artificially inoculated with a spore suspension of Penicillium digitatum and P. italicum with control... -
Suppression of Bipolaris Stem Rot on Cactus by Heat-inactivated Conidial Suspension of Bipolaris cactivora
한국식물병리학회 The Plant Pathology Journal 7 Pages
한국식물병리학회 The Plant Pathology Journal 2010, 26권 3호 4 231-237 (7 pages)
Alternaria alternata, Colletotrichum gloeosporioides, and Fusarium oxysporum, suggesting its disease-inhibitory efficacy may not be pathogen-specific. HICS significantly reduced severities of the stem rot disease on several cactus species including Hylocereus trigonus, Cereus peruvianus, Chamaecereus silvestrii and Gymnocalycium mianovichii, but not on Cereus tetragonus. Extensive wound periderms were formed in the stem tissues of inoculation and/or wounding sites on C. peruvianus treated with... -
Morphology and Molecular Characteristics of Alternaria sonchi Causing Brown Leaf Spot on Sonchus asper in Korea
Huan Luo, Myung Soo Park, Jun Myoung Yu 한국식물병리학회 식물병연구 8 Pages
한국식물병리학회 식물병연구 2021, 27권 3호 3 107-114 (8 pages)
During a disease survey on weeds and minor cultivated crops in Korea, a brown leaf spot disease was ob- served on Sonchus asper. Leaf lesions were round or irregular in shape, and grayish brown to brown with a purple margin. In severe infection, lesions enlarged and coalesced, resulting in blighting of the leaves. The isolates from these leaf lesions were identified as Alternaira sonchi based on morphological characteristics and phylogenetic analyses of Internal transcribed spacer region,... -
국내 딸기 시들음병균 Fusarium oxysporum f. sp. fragariae의 유전적 다양성, 병원성과 살균제 반응
남명현, 김현숙, 박명수, 민지영, 김흥태 한국식물병리학회 식물병연구 9 Pages
한국식물병리학회 식물병연구 2020, 26권 2호 3 79-87 (9 pages)
Fusarium oxysporum f. sp. fragariae (Fof) 에 의한 딸기 시들 음병은 국내 딸기재배에서 가장 중요한 병해 중 하나이다. 국내 발생하는 Fof의 특성을 분석하고자 시들음병균의 유전적 다양 성, 병원성과 살균제 반응을 조사하였다. 분리균은 Fo080701 를 제외한 모든 균주에서 Fof 특이적 primer에 증폭되었다. 분 리균의 nuclear ribosomal intergenic spacer region과 EF-1 α sequences 분석 결과 3개의 lineage를 형성하였다. 대부분 의 분리균은 lineage 1에 속하였으며 lineage 3에 3개 균주와 lineage 2에 1개 균주가... -
Molecular Mechanisms of Succinate Dehydrogenase Inhibitor Resistance in Phytopathogenic Fungi
Hyunkyu Sang, Hyang Burm Lee 한국식물병리학회 식물병연구 7 Pages
한국식물병리학회 식물병연구 2020, 26권 1호 1 1-7 (7 pages)
The succinate dehydrogenase inhibitor (SDHI) is a class of fungicides, which is widely and rapidly used to manage fungal pathogens in the agriculture field. Currently, fungicide resistance to SDHIs has been devel- oped in many different plant pathogenic fungi, causing diseases on crops, fruits, vegetables, and turf. Under- standing the molecular mechanisms of fungicide resistance is important for effective prevention and resis- tance management strategies. Two different mechanisms have currently...
