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Control Efficacy of Phloretin Isolated from Apple Fruits Against Several Plant Diseases
한국식물병리학회 The Plant Pathology Journal 6 Pages
한국식물병리학회 The Plant Pathology Journal 2010, 26권 3호 13 280-285 (6 pages)
In the course of a searching natural antifungal compounds from plant sources, we found that the methanol extract (3,000 μg/ml) of Malus domestica fruits had potential of control against rice blast (Magnaporthe grisea) and tomato late blight (Phytophthora infestans). Under bioassay-guided purification, we isolated phloretin, a phenolic compound, with in vivo antifungal activity against M. grisea. By 1-day protective application of phloretin (500 μg/ml), the compound strongly inhibited the... -
Evaluation on Red Pepper Germplasm lines (Capsicum spp.) for Resistance to Anthracnose Caused by Colletotrichum acutaum
한국식물병리학회 The Plant Pathology Journal 7 Pages
한국식물병리학회 The Plant Pathology Journal 2010, 26권 3호 12 273-279 (7 pages)
of pepper, one hundred seventy three accessions of tested pepper were found infected with C. acutatum. Out of the 173 accessions, eighty five accessions were susceptible to anthracnose with dark brown to black lesions and slowly increased in size at 21 days after inoculation. Only thirty six accessions showed resistance against C. acutatum. On mature fruits of pepper, one hundred ninety eight accessions were infected with C. acutatum at 21 days after inoculation. Twenty one accessions showed a... -
Isolation and Morphological Characterization of Monilinia sp. KV-27 Associated with Apple Anthracnose of Fuji Apples in Korea
한국식물병리학회 The Plant Pathology Journal 4 Pages
한국식물병리학회 The Plant Pathology Journal 2010, 26권 2호 12 185-188 (4 pages)
days. The fungal cultures on PDA were used for morphological observation and identification of the fungus. Conidiophores were produced on the gray to whitish sporodochial structures scattered on PDA plates. These conidiophores gave rise to chains of conidia, which were branched and easily detached in water. These structures were dark brown to black and consisted of hyphal masses. Conidia produced on PDA plates were hyline or light colored, lemon shaped or ellipsoidal (10-13×8.5-11 μm) in size. -
Phenotypic and Genotypic Analysis of Rice Lesion Mimic Mutants
한국식물병리학회 The Plant Pathology Journal 11 Pages
한국식물병리학회 The Plant Pathology Journal 2010, 26권 2호 9 159-169 (11 pages)
Lesion mimic mutant (LMM) plants display spontaneous necrotic lesions on their leaves without any pathogenic infection. Specific rice LMMs designated as spotted leaf (spl) including spl1, spl3, spl4, spl5 and spl6 are genetically known as lesion resembling disease (lrd) mutant. The inheritance patterns in the F1 and F2 progenies of these mutants are controlled by recessive genetic factors. Lesion development in the rice LMMs were controlled by both development stages and environmental factors.... -
A Short-chain Dehydrogenase/reductase Gene is Required for Infection-related Development and Pathogenicity in Magnaporthe oryzae
한국식물병리학회 The Plant Pathology Journal 9 Pages
한국식물병리학회 The Plant Pathology Journal 2010, 26권 1호 2 8-16 (9 pages)
role in M. oryzae development. To understand the roles of MoSDR1, the deletion mutant ΔMosdr1 for the gene was obtained via homology-dependent gene replacement. As expected, ΔMosdr1 was nonpathogenic; moreover, the mutant displayed pleiotropic defects in conidiation, conidial germination, appressorium formation, penetration, and growth inside host tissues. These results suggest that MoSDR1 functions as a key metabolic enzyme in the regulation of development and pathogenicity in M. oryzae. -
Evaluation of a Fungal Strain, Myrothecium roridum F0252, as a Bioherbicide Agent
한국식물병리학회 The Plant Pathology Journal 8 Pages
한국식물병리학회 The Plant Pathology Journal 2008, 24권 4호 12 453-460 (8 pages)
effect of M. roridum F0252 on germination of ladino clover and white clover (Trifolium repens L.) seeds, spore solution of the fungus was employed in two concentrations, 6.5×106 and 2.5× 107 spores per mL and then inoculated to the seeds. The fungal spores inhibited the seed germination, infected the seedlings, and caused an abnormal withering and inhibition of seedling growth. In addition, when the herbicidal activity of crude ethyl acetate extract from the liquid culture was assessed on a... -
Survey of Fungicide Resistance for Chemical Control of Botrytis cinerea on Paprika
한국식물병리학회 The Plant Pathology Journal 6 Pages
한국식물병리학회 The Plant Pathology Journal 2008, 24권 4호 11 447-452 (6 pages)
Four hundred and sixty six isolates of B. cinerea were obtained from infected leaves, stems and fruits of paprika grown in greenhouses or plastic film houses in Gangwon province, Korea, between August and November in 2006 and 2007. These isolates were classified into five representative phenotypes of resistant (R) and sensitive (S) reactions as SSR, SRR, RSS, RRS and RSR according to the responses of isolates against benzimidazole, dicarboximide and N-phenylcarbamate fungicide in order. The... -
ABA Increases Susceptibility of Pepper Fruits to Infection of Anthracnose by Collectotrichum acutatum
한국식물병리학회 The Plant Pathology Journal 7 Pages
한국식물병리학회 The Plant Pathology Journal 2008, 24권 4호 5 400-406 (7 pages)
To examine the relationship between plant hormones and the development of pepper anthracnose, we investigated the effects of several plant hormones on the progression of disease symptoms. Of the five plant hormones examined, abscisic acid (ABA) increased the lesion length and disease incidence on detached fruits of Capsicum annuum cv. Nokkwang. The simultaneous application of ABA with inoculation of Colletotrichum acutatum JC24 resulted in increased lesion length, depending the concentration of... -
Ecological Factors Influencing Severity of Cashew Fusarium Wilt Disease in Tanzania
Stanslaus A. Lilai, Fortunus A. Kapinga, Wilson A. Nene, William V. Mbasa, Donatha D. Tibuhwa 한국식물병리학회 식물병연구 12 Pages
한국식물병리학회 식물병연구 2021, 27권 2호 1 49-60 (12 pages)
Cashew (Anacardium occidentale L.) is an important cash crop in Tanzania as a source of income to cashew growers and provides foreign exchange for the country. Despite its significance, the crop is threatened by fast spreading disease known as cashew Fusarium wilt caused by Fusarium oxysporum. Field assessment and laboratory tests were conducted to determine incidences of the disease, severity, ecological factors that influence them and explored the pathogen host specificity in six cashew... -
Alternaria Spots in Tomato Leaves Differently Delayed by Four Plant Essential Oil Vapours
Jeum Kyu Hong, Yeon Sook Jo, Dong Hyun Ryoo, Ji Hwan Jung, Hyun Ji Kwon, Young Hee Lee, Seog Won Chang, Chang-Jin Park 한국식물병리학회 식물병연구 10 Pages
한국식물병리학회 식물병연구 2018, 24권 4호 6 292-301 (10 pages)
in vitro conidial germination of A. alternata in dose-dependent manners, and cinnamon oil vapour was most effective to suppress the conidial germination. The four plant essential oils showed similar antifungal activities against the in vitro mycelial growth of A. alternata in dosedependent manners, but low doses of thyme oil vapour slightly increased in vitro mycelial growth of A. alternata. Necrotic lesions on the A. alternata-inoculated tomato leaves were reduced differently depending on kinds...
