• 제목/요약/키워드: pustule disease

검색결과 37건 처리시간 0.026초

Platform of Hot Pepper Defense Genomics: Isolation of Pathogen Responsive Genes in Hot Pepper (Capsicum annuum L.) Non-Host Resistance Against Soybean Pustule Pathogen (Xanthomonas axonopodis pv. glycines)

  • Lee, Sang-Hyeob;Park, Do-Il
    • The Plant Pathology Journal
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    • 제20권1호
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    • pp.46-51
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    • 2004
  • Host resistance is usually parasite-specific and is restricted to a particular pathogen races, and commonly is expressed against specific pathogen genotypes. In contrast, resistance shown by an entire plant species to a species of pathogen is known as non-host resistance. Therefore, non-host resistance is the more common and broad form of disease resistance exhibited by plants. As a first step to understand the mechanism of non-host plant defense, expressed sequence tags (EST) were generated from a hot pepper leaf cDNA library constructed from combined leaves collected at different time points after inoculation with non-host soybean pustule pathogen (Xanthomonas axonopodis pv. Glycines; Xag). To increase gene diversity, ESTs were also generated from cDNA libraries constructed from anthers and flower buds. Among a total of 10,061 ESTs, 8,525 were of sufficient quality to analyze further. Clustering analysis revealed that 55 % of all ESTs (4685) occurred only once. BLASTX analysis revealed that 74% of the ESTs had significant sequence similarity to known proteins present in the NCBI nr database. In addition, 1,265 ESTs were tentatively identified as being full-length cDNAs. Functional classification of the ESTs derived from pathogen-infected pepper leaves revealed that about 25% were disease- or defense-related genes. Furthermore, 323 (7%) ESTs were tentatively identified as being unique to hot pepper. This study represents the first analysis of sequence data from the hot pepper plant species. Although we focused on genes related to the plant defense response, our data will be useful for future comparative studies.

SSR 분자표지이용 콩 불마름병 저항성 관여 양적형질 유전자좌(QTL) 분석 (Identification of Quantitative Trait Loci Associated with Resistance to Bacterial Pustule (Xanthomonas axonopodis pv. glycines) in Soybean)

  • 서민정;강성택;문중경;이석기;김율호;정광호;윤홍태
    • 한국육종학회지
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    • 제41권4호
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    • pp.456-462
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    • 2009
  • 본 연구는 최근 우리나라에서 급격하게 발생되고 있는 콩 불마름병에 대한 저항성 중간모본을 육성하고자 할 때 marker-assisted selection에 적용할 수 있는 저항성 근접 분자표지를 개발하고자 수행하였다. 1. 불마름병에 이병성인 큰올콩과 저항성인 신팔달콩의 RIL 116 계통에 대하여 콩 불마름병 균주 8ra에 대한 저항성과 연관된 QTL을 탐색한 결과 포장에서는 연관군 B2, D2, I와 K에서, 온실에서는 연관군 D2, C1과 F에서 불마름병과 관련된 QTL이 나타났다. 2. 포장과 온실에서 공통적으로 탐색된 QTL은 연관군 D2에 위치해 있었는데 정확한 위치는 포장과 온실에서 각각 Satt135와 Satt397의 사이에서 LOD score 6.64와 3.43으로 Satt135에서 14.01 cM과 0.01 cM 떨어진 위치에서 탐색되었다.

방풍통성산(防風通聖散)에 대한 문헌적(文獻的) 고찰(考察) (The Literatural study of Bangpungtongsungsan)

  • 이우열;윤일지;오민석
    • 혜화의학회지
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    • 제14권1호
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    • pp.155-165
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    • 2005
  • I have come to conclusion as follows about Bangpungtongsungsan after literatural study. 1. Bangpungtongsungsan is the medical treatment of heat, wind and dryness. 2. Bangpungtongsungsan is used in head-wind, dizziness, both eye disease, tinnitus, both ear deafness, nasal polyp, uriticaria, sajuabi, beard and hair falling, apoplexy, paralysis of hands and feet, dull mentality, tetanus, epidemic disease characterized by swelling and redness of face, carbuncle, daepungchang, pustule, syphilis, tinea capitis and so on. 3. Bangpungtongsungsan is used in the disease of cerebral hemorrhage, hypertension, arteriosclerosis, constipation, rosacea, hemorrhoids, cutaneous disease, empyema, eye disease, diabetes, asthma, obesity, beriberi, erysipelas, baldhead, fatty heart, chronic nephritis and so on. 4. Bangpungtongsungsan fits in Taeumin who has much wetness-heat and those who have much heat or have much heat but don't give off well. And it doesn't fit in the disease of intolerance to cold and fever in the form of weakness headache, asthenia of the spleen and stomach, cold by internal disorder and so on.

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콩의 품종, 파종시기 및 지역적 차이에 대한 병 발생 평가 (Evaluation of Disease Occurrence by Cultivar, Sowing Date and Locational Difference in Korean Soybean Fields)

  • 김홍조;오지연;김동관;윤홍태;정우석;홍점규;김기덕
    • 식물병연구
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    • 제16권2호
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    • pp.176-182
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    • 2010
  • 식물병발생은 농업 체계에서 다양한 요인에 의해 좌우된다. 최근의 광범위한 환경적인 기후 변화로 인하여 기후 온난화, 파종 시기와 품종의 선택 같은 농업 체계가 영향을 받고 있다. 포장에서의 점차적인 병 발생 양상은 직, 간접적인 환경 변화에 영향을 받을 수 있다. 본 연구에서, 콩 품종, 파종 시기, 재배의 지역적인 차이가 우리나라의 콩 병 발생에 미치는 영향을 조사하기 위하여 병발생 빈도를 평가하였다. '태광', '풍산', '청자3호', '새올', '다원' 품종을 5월 15일, 6월 1일, 6월 15일, 6월 30일 4 회에, 수원, 나주 두 지역에 파종하였을 때, 콩 들불병과 불마름병 등이 주요 병으로 발견되었다. 들불병이 '태광' 품종에서 주로 심각하게 발생한 반면, '다원' 품종은 불마름병에 대해 특히 감수성이었다. 들불병과 불마름병의 병 진전은 품종과 관계없이 파종 시기가 지연 될수록 감소하였다.

Sensitive and Pathovar-Specific Detection of Xanthormonas campestris pv. glycines by DNA Hybridization and Polymerase Chain Reaction Analysis

  • Changsik Oh;Sunggi Heu;Park, Yong-Chul
    • The Plant Pathology Journal
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    • 제15권1호
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    • pp.57-61
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    • 1999
  • Xanthomonas campestris pv. glycines causes bacterial pustule disease on susceptible soybean leaves and produces a bacteriocin, named glycinecinA, against most xanthomonads including Xanthomonas campestris pv. vesicatoria. One of the 5 isolated DNA regions responsible for bacteriocin production, a 1.7 kb DNA region for the glycinecinA gene, was used as a probe to detect the presence of the homolog DNA in other bacterial strains. Among 55 bacterial strains tested, only X. campestris pv. glycines showed the positive signal with glycinecinA DNA. Two oligomers, heu2 and heu4, derived from a glycinecinA DNA were used to carry out the polymerase chain reaction (PCR) analysis with chromosomal DNA from 55 different bacterial strains including 24 different strains of X. campestris pv. glycines, 9 different pathovars of xanthomonads, and other 22 bacterial strains of different genus and species. By separation of the PCR products on agarose gel, a 0.86 kb DNA fragment was specifically detected when X. campestris pv. glycines was present in the amplification assay. The 0.86 kb fragment was not amplified when DNA from other bacteria was used for the assay. Southern analysis with glycinecinA DNA showed that the PCR signal was obtained with X. campestris pv. glycines isolates from various geographic regions and soybean cultivars. Therefore, the 1.7 kb DNA region for the glycinecinA gene can be used for the pathovar-specific probe for the DNA hybridization and the primers heu2 and heu4 can be used for the pathovar-specific primers for the PCR analysis to detect X. campestris pv. glycines.

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콩 불마름병 저항성 및 감수성 품종을 이용한 rxp 유전자 근접 분자표지 개발 (Development of Molecular Markers Conferring Bacterial Leaf Pustule Resistance Gene, rxp, using Resistant and Susceptible Cultivars in Soybean)

  • 양기웅;이영훈;고종민;전명기;이병원;김현태;윤홍태;정찬식;백인열
    • 한국육종학회지
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    • 제43권4호
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    • pp.282-287
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    • 2011
  • 본 연구는 최근 콩 재배에서 심각한 병으로 대두된 콩 불마름병에 대한 저항성 유전자인 rxp 근접분자표지를 개발하고자 수행하였다. 콩 불마름병은 국내에서 전국적으로 발생하는 심각한 세균병으로 이에 관련하여 세균병 접종을 이용한 저항성 품종과 감수성 품종에 대한 연구가 많이 진행되고 있지만 정확한 유전자의 염기서열이 밝혀져 있지 않고 있다. 본 연구는 콩 불마름병에 저항성 품종 8개체와 감수성 품종 8개체를 이용하여 rxp 유전자 근접분자표지를 확인하기 위하여 수행하였다. 콩 불마름병 저항성 유전자로 알려진 rxp 유전자는 chromosome 17의 Satt486과 Satt372 사이에 있다고 알려져 있으며, 최근 연구결과로 chromosome 17의 7.27-7.30 Mbp 사이에 있다. 연구진은 chromosome 17의 6.6-7.3 Mbp 사이에 random으로 분자표지를 제작하여 저항성과 감수성 품종에서 다형성을 알아보았다. 실험결과로 콩 불마름병관련 근접분자표지 3점을 개발하였고, Rxp17-700 분자표지는 흥미로운 rxp 근접분자표지 임을 확인하였다. 이러한 콩 불마름병 저항성관련 근접분자표지는 앞으로 저항성 품종을 선발하는데 도움이 될 것이다.

Antimicrobial Activities of Hydroxybiphenyl Derivatives

  • Bae, Ki-Hwan;Koo, Sung-Hyen;Seo, Won-Jun
    • 생약학회지
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    • 제17권1호
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    • pp.85-90
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    • 1986
  • It has been elucidated that magnolol and honokiol, isolated from the stem bark of Magnolia obovata, had potent antibacterial activity against a cariogenic bacterium Streptococcus mutans. They also show a significant antibacterial activity against Bacillus anthracis, which causes malignant pustule and woolsorter disease in human. Some hydroxybiphenyl derivatives are synthesized from starting materials, phenylphenols and biphenols by means of Claisen's rearrangement and Elb's method to develop more potent antibacterial chemicals and to investigate the structure-activity relationships. The introduction of allyl groups to the aromatic rings of starting materials shows increase of antibacterial activities, but the number and positions of them do not effect their activities. Furthermore, the introduction of hydroxy group to aromatic rings also increases the activity.

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콩에 발생하는 주요 병원세균의 동시검출을 위한 다중 PCR 방법 (Multiplex PCR Assay for the Simultaneous Detection of Major Pathogenic Bacteria in Soybean)

  • 이영훈;김남구;윤영남;임승택;김현태;윤홍태;백인열;이영기
    • 한국작물학회지
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    • 제58권2호
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    • pp.142-148
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    • 2013
  • 국내 콩에서 발생하는 세균병해인 불마름병, 들불병, 세균점무늬병, 세균갈색점무늬병의 다중 진단을 위한 PCR 방법을 요약하면 다음과 같다. 1. 콩에 발생하는 각각의 세균들은 서로 다른 박테리오신(bacteriocin) 이나 파이토톡신(phytotoxin)을 생산하는데 이와 관련한 유전자를 목적으로 하여 진단프라이머를 설계하였다. 2. 불마름병은 glycinecin A, 들불병은 tabtoxin, 세균점무늬병은 coronatine과 세균갈색점무늬병은 syringopeptin을 목적유전자로 하여 다중 진단프라이머 조합을 설계하였다. 3. 1차 선발로 각각의 균주에 대한 단일 진단 프라이머를 선발하였으며, 여기선 선발된 21개의 프라이머들을 조합하여 4종 다중진단프라이머 선발을 위한 2차 선발에 이용하였다. 최종적으로 280 bp의 불마름병, 355 bp의 세균갈색점무늬병, 563 bp의 들불병과 815 bp의 세균점무늬병으로 구성된 다중진단 프라이머 조합이 개발되었다. 4. 선발된 4종 다중 진단 프라이머 조합의 경우 다른 세균들과의 비특이적 반응이 있는지 확인하기 위한 3차 선발을 거쳐 그 특이성을 검증하였다.

《상한론(傷寒論)》, 《김궤요략(金匱要略)》의 피부증상(皮膚症狀) 및 질환(疾患)에 대한 연구(硏究) (A Study on the Skin Disease of Sanghanron 《傷寒論》 and Geumgweyoryak 《金匱要略》)

  • 강나루;한정민;고우신;윤화정
    • 한방안이비인후피부과학회지
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    • 제25권1호
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    • pp.55-74
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    • 2012
  • Objective : The purpose of this study is to investigate the skin disease in Sanghanron"傷寒論" and Geumgweyoryak"金匱要略". Methods : We conducted a study on the original text paragraphs of Sanghanron and Geumgweyoryak containing the skin disease and analysis of Woo, Oh, Sung, Zhang, etc. We drew a parallel between skin disease from Sanghanron and Geumgweyoryak and matching diagnoses from western medicine. Results : The results were as follows. 1. In Sanghanron and Geumgweyoryak pruritus was related to psychogenic pruritus and similar to skin disease caused by decrease of sweating, dry skin in cholinergic urticaria, atopic dermatitis and eczema, etc. in western medicine. 2. In Geumgweyoryak ichthyosis was caused by woman's disease, after menopause, chronic disease and malnutrition and related to winter itch and xerotic eczema in western medicine. 3. In Sanghanron Goose bumps, keratosis follicularis, acute and chronic urticaria and cold urticaria were occurred because of poorly managed fever care and side effect of antibiotic. 4. In Geumgweyoryak red face was similar to face flushing and side effects, which is after drug and laser treatment on face, in western medicine. 5. In Geumgweyoryak urticaria was, in a broad sense, skin disease with pruritus and secondary infection resulted from scratch. Skin diseases with pruritus are similar to urticaria, dermatitis herpetiformis, lichen planus, atopic dermatitis, contact dermatitis, psoriasis, nummular eczema, lichen simplex chronicus, prurigo nodularis, neurodermatitis and internal disease with pruritus in western medicine. 6. In Geumgweyoryak spots in the skin were caused by fever and similar to allergic purpura and SLE symptom in western medicine. 7. In Geumgweyoryak bullous disease with yellowish discharge was similar to eczema, pustule, atopic eczema, etc. in western medicine. 8. In Geumgweyoryak repeated inflammation of oral cavity, genitals, eyes and skin was similar to Behcet's disease in western medicine. 9. In Sanghanron and Geumgweyoryak boil was similar to abscess and acute lymphadenitis in western medicine caused by oily foods and infections. 10. In Geumgweyoryak swelling and boil were occurred in a poor health. Damage from metalic material could cause a convulsion and was similar to tetanus in western medicine. Conclusion : We analyzed the original text paragraphs of Sanghanron and Geumgweyoryak and explanations about skin disease. As a results, we found out etiology, pathogenesis, treatments of the skin disease in Sanghanron and Geumgweyoryak. Further we compared with western medicine to develop better understanding of the skin disease.

콩 불마름병균의 생장 조건이 박테리오신인 glycinecin의 생성에 미치는 영향 (Influence of Growth Conditions for the Production of Bacteriocin, Glycinecin, Produced by Xanthmonas campestris pv. glycines 8ra)

  • Woo Jung;Sunggi Heu;Cho, Yong-Sup
    • 한국식물병리학회지
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    • 제14권5호
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    • pp.376-381
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    • 1998
  • Xanthomonas campestris pv. glycines 8ra causes bacterial pustule disease on susceptible soybean leaves and produces a bacteriocin, named glycinecin, against related bacteria such as Xanthomonas campestris pv. vesicatoria. The antimicrobial activity of the glycinecin was effective to most tested Xanthomonas species. X. c. pv. glycines 8ra was able to produce the glycinecin in liquid media as well as solid media. Maximal productivity of glycinecin was obtained at 3$0^{\circ}C$ in the early stationary phase of growth of the X. c. pv. glycines 8ra. The production of glycinecin was not dependent on the initial inoculum level but on cell density. Glycinecin was very sensitive to proteolytic enzymes such as trypsin and proteinase K but resistant to DNase and RNase. The culture supernatant of X. c. pv. glycines 8ra retained some of its antimicrobial activity after 15 min at 6$0^{\circ}C$. It is stable at wide range of pH. The glycinecin showed the bactericidal activity after the adsorption of the glycinecin to the sensitive bacterial cell.

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