A5027722184- Plant Pathogens and Fungal Diseases
- Plant Disease Resistance and Genetics
- Mycotoxins in Agriculture and Food
- Mycorrhizal Fungi and Plant Interactions
- Yeasts and Rust Fungi Studies
- Plant-Microbe Interactions and Immunity
- Plant Pathogenic Bacteria Studies
- Ecology and Conservation Studies
- Agriculture, Soil, Plant Science
- Fungal Biology and Applications
- Fungal Plant Pathogen Control
- Plant Disease Management Techniques
- Powdery Mildew Fungal Diseases
- Plant Pathogens and Resistance
- Plant and Fungal Interactions Research
- Plant pathogens and resistance mechanisms
- Food Quality and Safety Studies
- Postharvest Quality and Shelf Life Management
- Microbial Community Ecology and Physiology
- Plant Virus Research Studies
- Plant and animal studies
- Phytochemistry and biological activities of Ficus species
- Geology and Paleoclimatology Research
- Nematode management and characterization studies
- Fern and Epiphyte Biology
Rural Development Administration
2016-2025
National Academy of Agricultural Science
2009-2024
National Institute of Agricultural Science and Technology
2007-2024
The Colletotrichum gloeosporioides species complex includes many phytopathogenic species, causing anthracnose disease on a wide range of host plants and appearing to be globally distributed. Seventy-one isolates in the from different geographic regions Korea were preserved Korean Agricultural Culture Collection (KACC). Most them had been identified based hosts morphological features, this could lead inaccurate names. Therefore, KACC re-identified using DNA sequence analyses six loci,...
Fire blight and black shoot diseases, caused by Erwinia amylovora pyrifoliae , respectively, continue to spread several areas in Korea, despite intensive efforts the government control diseases. The distribution pattern of fire is different from each other Korea. Consequently, it required investigate pathogenicity E. apple trees. disease severity was compared this study an artificial inoculation suspensions into abaxial veins leaves measuring their at varying temperatures. Furthermore,...
Colletotrichum panacicola isolates were obtained from anthracnose lesions of Korean ginseng and compared with four species in morphology, molecular phylogeny pathogenicity. Based on morphological characteristics, C. was easily distinguished gloeosporioides but not higginsianum, destructivum coccodes. A phylogenetic tree generated ribosomal DNA-internal transcribed spacer sequences revealed that is remarkably coccodes higginsianum destructivum. However, sequence analysis three combined genes...
Several postharvest diseases of table grapes (Vitis vinifera) occur during storage, and gray mold rot is a particularly severe disease because the causal agent, Botrytis cinerea, grows at temperatures as low 0°C. Other diseases, such those caused by Penicillium spp. Aspergillus spp., also often lead to deterioration in quality after harvest. The use plant essential oils thymol linalool, reduce several kinds fruits, including oranges, has received much attention European countries. However,...
Since 2009, the Korean Society of Plant Pathology has established Committee on Common Names Disease to systematically review and determine plant disease names related terminologies. The committee published 6th edition List Diseases in Korea (LPDK) 2022, list been made publicly accessible online. online database significantly enhanced user accessibility, expedited update processes, improved interoperability with other databases. As a result, 6.1 was released by LPDK 2023, detailing new added...
Biocontrol activity of five strains selected rhizo-bacteria were tested in tomato against bacterial wilt caused by Ralstonia solanacearum. After root bacterization the plants grown a perlite-hydroponic system. Upon challenge inoculation with pathogen, all rhizobacterial efficiently suppressed various rates, at maximum strain, Bacillus vallismortis strain EXTN-1. While percent infected non-bacterized control 95%, it was only 65% pre-treated It also demonstrated that movement R. solanacearum...
본 연구에서는 키다리병에 심하게 감염된 종자를 prochlornz EC와 fludioxonil FS을 혼용하여 종자소독 효과를 증진시키기 위해 혼용처리 시 병원균 균사 및 포자 억제효과를 분석하고 혼용조건을 설정 하였다. 균사생장 억제 검정에서는 단제 사용 prochloraz는 <TEX>$10{\mu}g$</TEX>/ml 처리에서 100% 억제한 반면 fludioxonil은 <TEX>$80{\mu}g$</TEX>/ml 33.3%의 억제율을 나타내었고, 두 가지 살균제의 혼용 각각 <TEX>$5{\mu}g$</TEX>/ml씩 혼용처리에서 억제하였다. 포자발아 검정의 경우 prochloraz <TEX>$40{\mu}g$</TEX>/ml 단독 81.4% 발아를 억제하였지만 prochloraz와 혼용처리에서는 99.2%의 보였다. 감염종자를 대상으로 혼용침지소독 <TEX>$125{\mu}l$</TEX>/ml와 <TEX>$50{\mu}l$</TEX>/ml 침지할 발병율이 2.1%로...
벼 키다리병은 매우 중요한 벼의 병 가운데 하나로 아시아 지역에서 넓게 발생하고 있다. 포장에서의 저항성 검정체계가 개발되어 있지만, 그 검정 결과가 환경조건에 따라 다르게 나타나는 문제점을 가지고 본 연구에서는 정확하고 빠른 키다리병 품종 검정을 위하여 기내에서 검정하는 시스템을 개발하였다. 병원균을 접종한 '남평벼', '주남벼', '추청벼', '삼천벼', '오대벼', '화신벼' 등 6개 품종의 종자를 MS배지가 10 ml 씩 담겨 있는 직경 30 mm, 길이 450 mm 시험관에 종자 3립씩 파종 후 <TEX>$25^{\circ}C$</TEX>와 <TEX>$28^{\circ}C$</TEX> 항온기에 치상하고 하루 12시간 광조건으로 배양하였다. 증상은 벼가 도장한 후에 2-3주 경과시점 부터 잎 끝이 마르기 시작하여 고사하게 된다. <TEX>$10^5$</TEX> 포자/ml 농도와 조건에서 '남평벼'는 파종후 28일째부터 마르는 증상을 보이기 35일째에 완전히 고사를 하는...
Abstract Legumes are primarily grown agriculturally for human consumption, livestock forage, silage, and as green manure. However, production has declined due to fungal pathogens. Among them, this study focused on Fusarium spp. that cause wilt in minor legumes Korea. Diseased legume plants were collected from 2020 2021, diverse genera isolated the internal tissues of plant roots stems. most dominant, accounting 71% isolates. They identified via morphological characteristics molecular...
During the period from 1999 to 2008, we surveyed major diseases incidence of rice in Korea. Leaf blast showed 0.85% diseased leaf area 2000 and then consistently decreased 0.02% by 2008. However, panicle irregularly appeared years depending on weather conditions for disease development heading milk stage rice. Diseased lesion height sheath blight had lowest (10.1%) 2001 highest (21.4%) 2007. A negative corelation ($r
The strains 17E-042, 17E-039, and NC13-171 belong to Ascomycota were isolated from soil collected Sancheong-gun Yeongam-gun, Korea. strain 17E-042 produced white mycelial colonies that developed a sienna color with round margin on potato dextrose agar (PDA), the reverse side light color. Morphologically, this was similar of Arthrinium phragmites A. hydei, but shorter conidial size newly identified (17E-042) distinct. 17E-039 macroconidia pale yellow orange-brown, elongated-ellipsoid oblong,...
Amaranth (Amaranthus spp. L) is not native to South Korea but cultivated in small scales for ornamental purposes as well leafy vegetables and pseudo cereals. In this study, a new species within the genus Fusarium was isolated from amaranth, showing stem rot symptoms farmer field Hwaseong, Korea. The disease characterized by dark-brown spots with black borders, leading withering. Phylogenetic analysis-based concatenated sequences of translation elongation factor 1-alpha (TEF1), beta-tubulin...
It is well known that environmental factors, management strategy, and genotype can affect the composition of maize seeds. For this reason, eight conventional varieties from Korea were grown over three years, 2021, 2022, 2023, in sites, Daegu, Hongcheon, Suwon South Korea, to describe natural variation seed composition. The results indicate a sizable component contents such as proximate, minerals, fatty acid among various varieties, which was more pronounced at Daegu cultivation sites...
In June 2010, an internal fruit rot of sweet pepper (Capsicum annuum L.) was found in a commercial greenhouse Ilsan City, Korea. Disease incidence reached approximately 5% 30 tons harvested peppers. Affected fruits commonly did not show external symptoms. However, when the cut open, and pinkish gray mycelium were observed on seeds inner surface fruit. Discolored soft patches, browning, necrosis outer some fruits. Fragments (5 × 5 mm2) affected tissues sterilized with 1% NaOCl for s then...
2005년은 전년에 비해 기온이 낮았고 강수량이 적었다. 벼 흰잎마름병, 세균성벼알마름병, 깨씨무늬병, 이삭도열병, 배나무 겹무늬병 등이 2004년에 증가하였다. 특히 깨씨무늬병은 4배 이상 병 발생이 이삭도열병이 전년 0.7%에서 2005년 2%로 증가된 것은 출수기 동안 평균기온은 높았고 강수일수, 강수량 및 습도가 높아 잎도열병균이 이삭으로의 전파를 촉진한 것으로 추정되었다. 기타 조사된 병들은 감소 혹은 유사한 수준이었다. 잎도열병, 시설참외 시들음증상, 흰가루병 노균병은 크게 감소되었다. In 2005, average temperature was lower, and rainfall less than those of previous year. The diseases rice, barley, pepper, chinese melon, apple oriental pear were surveyed. Bacterial blight, bacterial grain rot,...
Stem canker symptoms were observed in a rape field Muan, Korea during disease survey May 2006. A total of 15 isolates Phoma sp. obtained from the infected stems plant. All identified as Leptosphaeria biglobosa based on their morphological and cultural characteristics. The Korean L. assigned to 'brassicae' among six subclades complex entire ITS sequences rDNA. Pathogenicity fungal was confirmed leaves by artificial inoculation. This is first report that causes stem Korea.
2006년부터 2007년까지 벼키다리병균을 수집하여 25개 균주의 prochloraz와 benomyl + thiram에 대한 약제저항성을 검정하였다. 공시한 균주 중, 대부분의 균주가 감수성이었으나 prochloraz에 약제저항성 균주는 6개로 조사되었고, 대해서는 3개 저항성을 나타내었다. 이 중 CF245, CF249, CF337은 공시약제 모두에 대해 저항성이었다. 감수성 균주간 교배 및 감수성, 저항성 교배를 통해 얻어진 후대균주를 분리하여 온도별 균사 생장율과 약제에 반응을 조사하였다. 생장은 교배(CF202 <TEX>$\times$</TEX> CF232)에서는 모균주와 비슷하였으나, 감수성과 교배(CF179 CF337)에서는 모균주에 비해 후대균주의 균사생장이 빠른 것으로 나타났다. 공시약제에 반응은 따라 다른 양상을 Prochloraz의 경우, 감수성균주인 CF202 CF232의 후대균주에서 저항성의 분포비율이 86 : 14로 나타났고, 균주인 CF179...
Twenty-five isolates of Fusarium fujikuroi acquired from rice seeds and plants evidencing symptoms Bakanae disease were evaluated to determine their mating types characterize the formation sexual state.The via multiplex PCR with diagnostic primers mating-type (MAT) region: GFmat1a, GFmat1b, GFmat2c, GFmat2d.Among 25 isolates, 11 identified as MAT-1 (male), 14 MAT-2 (female).Four three mated cultured evaluate optimal culture conditions for production states.Among four tested media, 10% V8...
More than a year has passed after the 6th edition of ‘List Plant Diseases in Korea (LPDK)’ was published April 2022. The 6.1st (2023) List made by correcting errors found list and adding new diseases reported edition. There were 397 corrections from edition, most which simple spelling or minor issues. However, 12 deleted due to duplication unclear literature proof, 2 had their diseases’ common names changed. We added 158 that before 2021 but not included After all, 146 6,534 resulting total...
Mulberry (Morus alba L.) is native to China, and has long beenwidely cultivated feed the silkworms. Recently, it being used asa material for medical applications health food in Korea. In July2009, leaf spot disease severely occurred some local varieties ofmulberry grown Suwon, Among different surveyed,a variety, Hasusang, was found be highly susceptible diseasewhere incidence reached nearly 90 percent. The usuallyoccurred on leaves close ground gradually progressed toupper leaves. symptoms...