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Infection of Daughter Plants by Fusarium oxysporum f. sp. fragariae through Runner Propagation of Strawberry (딸기 영양번식을 통한 Fusarium oxysporum f. sp. fragariae의 자묘 감염)

  • Nam, Myeong-Hyeon;Kang, Yang-Jae;Lee, In-Ha;Kim, Hong-Gi;Chun, Chang-Hoo
    • Horticultural Science & Technology
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    • v.29 no.3
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    • pp.273-277
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    • 2011
  • Fusarium oxysporum f. sp. fragariae (Fof), the causal agent of crown and root rot in strawberry, is the most serious soilborne disease of nursery plants in Korea. The possibility of infection by Fof through runner propagation from infected mother plants of strawberry cv. 'Kumhyang' was assessed in stolons and daughter plants hanging from raised beds. The number of daughter plants from an infected mother plant in plastic house and photosynthetic photon flux (PPF) system, 280 ${\mu}mol{\cdot}m^{-2}{\cdot}s^{-1}$ was 2.7 and 3.8 plants after 58 days, respectively. However, healthy mother plants produced 6.5 and 8.4 daughter plants, respectively. The pathogen was detected in the uppermost portion of the stolon after 58 days, but was not detected further down the stolon. After 90 days, it was detected in all portions of the stolon between mother and $1^{st}$ daughter plant and in 60% of all $1^{st}$ daughter plants. The pathogen was not detected in the corresponding portions of the non-infected controls. These results show that infected mother plants can transmit Fof to their daughter plants without passing through the soil and $1^{st}$ daughter was used as mother plant in PPF system for propagating healthy plants.

A Case of Feline Infectious Peritonitis with Intestinal Manifestation in a Cat (고양이에서 장 병변을 가진 고양이 전염성 복막염 감염 증례)

  • Oh, Hyun-Jung;Sohn, Jung-Min;Jung, Sun-Young;Kim, Bo-Eun;Ji, Seo-Yeoun;Jung, Joo-Hyun;Kim, Dae-Yong;Youn, Hwa-Young;Yoon, Junghee;Choi, Min-Cheol
    • Journal of Veterinary Clinics
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    • v.31 no.5
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    • pp.449-453
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    • 2014
  • A 2-year-old, intact male, Persian exotic cat, weighing 2 kg with a history of a palpated abdominal mass was admitted to Veterinary Medical Teaching Hospital, Seoul National University. On routine complete blood count (CBC) and serum biochemical analyses, there were anemia and 0.45 of albumin to globulin ratio. A feline infectious peritonitis (FIP) virus antibody test kit was negative. Radiography, ultrasonography and computed tomography (CT) were performed. A markedly enlarged abdominal mass was found. On cytologic examination of this mass, it was diagnosed as alimentary lymphoma or pyogranulomatous inflammation. Chemotherapeutic treatment for intestinal lymphoma was provided for several weeks, but the mass size was increased and clinical signs were not improved. The cat died six days after discontinuing chemotherapy. On postmortem examination, the definitive diagnosis was FIP. This case describes a cat with FIP in which an abdominal tumor had been suspected clinically.

An Investigation on Ascospore Flight of the Wheat Scab Fungus Caused by Gibberella zeae as a Primary Inoculum (맥류(麥類) 붉은곰팡이병(病)적미병(赤黴病)의 1차(次) 전염원(傳染源)인 자낭포자(子囊胞子)의 비산(飛散)에 관한 조사(調査))

  • Chung, Bong-Koo;Shim, Jae-Sup;Sung, Jae-Mo;Heo, No-Youl;Park, In-Sun
    • The Korean Journal of Mycology
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    • v.10 no.2
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    • pp.85-88
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    • 1982
  • In order to investigate flight number of ascospores of the wheat scab fungus as a primary inoculum, the experiment was undertaken at three localities including Suweon during the two years 1979 to 1980. Ascospore fllight of the fungus was begun at the first part of April, and amounts of flight number of ascospores were varied by different localities. It showed a tendency that large number of ascospore fllight was proportionally resulted by higher amounts of rainfall. As a result, a high positive correlation was obtained between flight number of ascospores of the fungus and amounts of rainfall.

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Optimal extraction conditions of Chaetomorpha torta by ethanol concentration and inhibitory effect on pro-inflammatory cytokines (에탄올 농도별 꼬불염주말의 최적추출조건 및 전염증성 사이토카인 억제 효과)

  • Jin Eui Song;Tae Hyun Shin
    • The Journal of the Convergence on Culture Technology
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    • v.10 no.4
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    • pp.41-46
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    • 2024
  • In this study, we sought to confirm the potential of the Chaetomorpha torta extract as a raw material for cosmetics. Accordingly, we sought to find the optimal extraction conditions for Chaetomorpha torta by ethanol concentration and to check whether it has an anti-inflammatory effect by confirming the inhibitory effect of pro-inflammatory cytokines (TNF-α, IL-1β, IL-6). The main contents of the experiment results are as follows. First, when DPPH radical scavenging ability and polyphenol yield were used as the criteria for optimal extraction conditions of Chaetomorpha torta, 70% concentration ethanol extract was most suitable. Second, as a result of cytotoxicity evaluation using Raw 264.7, no cytotoxicity was observed at concentrations below 100 ㎍/mL. Third, as a result of measuring the inhibitory effect of pro-inflammatory cytokines TNF-α, IL-1β, and IL-6 in LPS-induced Raw 264.7 cells, the production of all cytokines decreased in proportion to the concentration, and 100 ㎍/mL It was confirmed that the concentrations were 73.76±2.6%, 84.8±2.42%, and 91.91±0.47%, respectively, showing excellent anti-inflammatory properties. According to these research results, it appears that the extract of the Chaetomorpha torta can be valuable as a raw material for cosmetics with anti-inflammatory properties, and if research on antioxidant, antibacterial, and anti-inflammatory activities related to green algae is conducted more actively, marine resources can be used as useful basic data. It is believed that it will be.

Transmissible Gastroenteritis of Pigs in South Eastern Korea in 1992~3 : Prevalence and Factors Associated With Infection (영남지방에서 1992~3년에 유행한 돼지 전염성 위장염의 역학적 특성)

  • Kim Bong-Hwan;cho Kwang-Hyun;Kwon Hae-Byung
    • Journal of the korean veterinary medical association
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    • v.33 no.2
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    • pp.90-100
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    • 1997
  • Outbreaks of transmissible gastroenteritis(TGE) in 52 farrow-to-finish farms in southeastern part of Korea(Youngnam district) were investigated during the period from November, 1992 to April 1993. The disease invariably occurred in so called epizootic for

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건강과 자연농업-제211호

  • Korea Organic Farming Association
    • THE HEALTH and ORGANIC FARMING
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    • no.211
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    • pp.1-12
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    • 2005
  • 유기농업 연수회 유치 요청쇄도/유기재배에서의 윤작/맛 좋은 쌀 생산방법/쌀겨를 이용한 제초효과/유기농업의 기초/음주와 정신 건강/겨울철 실내건조 해결법/친환경농업 직불금 예산을 늘리자/우리아이들을 위해 학교급식은 유기농산물로 해야/농림부 친환경농업육성법 개정안 주요골자/친환경유기농산물 소비.유통의 활성화 방안/순환농업의 지역별 유형/국제기준에 의한 유기농산물 생산기술/토양전염성 병해/미생물 자재에 대한 올바른 이해/유기재배 쌀과 일반재배 쌀의 품질 특성 연구

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건강을 지키는 현장-건강교육의 핵심은 자신의 소중함을 께닫는 것

  • KOREA ASSOCIATION OF HEALTH PROMOTION
    • 건강소식
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    • v.15 no.3 s.148
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    • pp.2-5
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    • 1991
  • 현대의 질병을 우리는 비전염성 만성질환, 즉 성인병이라 일컫는다. 이 질병은 평소의 생활에 주의하지 않으면 누구라도 걸릴 수 있고 한번 걸리면 쉽게 치료되지 않는다는 특성을 안고 있다. 따라서 이 질병의 관리를 위해서는 모든 사람들이 올바른 생활습관을 가지도록 하는 보건교육이 그 기초가 되어야 한다. 그러나 안타깝게도 현재 우리나라의 보건교육은 체계상으로나 자료의 측변에서 미흡한 점이 많고, 더욱 문제가 되는 것은 보건교육의 필요성을 절감하고 실천하는 보건단체가 많지 않다는 점이다. 이러한 상황 속에서, 이미 몇 년 전부터 ‘국민건강운동’을 제창하고 국민 보건교육에 나섰던 경기 제11지구의료보험조합은 여러 가지 측면에서 모범적인 결과를 가져왔다.

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레지오넬라균을 잡는

  • 한국환경기술인연합회
    • Environmental engineer
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    • s.167
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    • pp.58-61
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    • 2000
  • 하절기 외기 온도 상승에 따라 에어컨의 사용이 급증하게 되며, 특히 건물등의 공기조화장치의 가동이 활발하게 이루어지고 있다. 최근 사회문제로 대두되고 있는 레지오넬라균에 의한 질병은 공기조화기와 밀접한 관계가 있으며, 따라서 이 질병에 대한 이해와 적절한 방지가 무엇보다 중요하다. 레지오넬라는 물과 박테리아가 결합된 상태로 분무상태로 공기에 의해 전염된다. 레지오넬라가 검출되는 인공적인 시설물로는 공조, 산업용 cooling tower, $20^{\circ}C$에서 $45^{\circ}C$ 범외내의 온수 분무를 생산하는 기타의 시스템등에서 발생된다. 이에 (주)한수는 최근 레지오넬라균 및 미생물의 살균처리가 가능한 "레비오켐"을 개발,시판하고 있다.

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Efficiency Evaluation of Self Removal Type Clean Isolator (자가이동형 청정격리기의 성능평가에 환한 연구)

  • 엽무종;김윤신;이철민;장기석
    • Proceedings of the Korea Air Pollution Research Association Conference
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    • 2002.11a
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    • pp.421-422
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    • 2002
  • 병원은 환자가 모여 치료를 받는 곳이지만 이곳에 모인 대부분의 환자 중 맡은 사람이 감염증을 갖고 있거나 다른 환자에 대해 전염원이 될 가능성이 있으며 병에 대한 감수성이 높다(홍영이, 1983). 즉, 백혈병 및 암 환자들이 (특히, 골수암) 수술실에서 수술을 마치고 무균실로 옮기는 과정이나 골수이식을 받을 경우 병원 내에서 이동할 때 저항력이 없는 상태에서 외부 병원균으로부터 신체 내에 감염을 막을 방법이 현재로서는 전혀 없다(산업자원부 2002). (중략)

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Trichophyton Verrucosum Infection in a Camel and its Handler (사슴과 그 취급자에 있어서 Trichophyton verrucosum 감염 1예)

  • 팔마헨드라;이창우
    • Journal of Veterinary Clinics
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    • v.17 no.1
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    • pp.293-294
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    • 2000
  • 6개월령의 숫 낙타와 29세의 남성 낙타 관리인에서 발생한 Trichophyton verrucosum에 의한 진균감염증에 대해 보고하였다. 이 감염증은 피부 병변으로부터 KOH 기술에 의해 균 요소를 증명하고, 또한 감염된 피부의 소파물로부터 Trichophyton verrucosum을 분리하여 확진하였다. 낙타에서는 안면에 국한하여 병변이 발생하고, 관리인에서는 손에 발생하였다. 화학요법으로서 낙타에게는 2% 옥도정기를 사용하고, 관리인에게는 2% miconazole 연고를 사용하였다. 이 보고는 인도에 사는 단봉낙타로부터 Trichophyton verrucosum이 직접 사람에게 전염된 최초의 보고로 생각된다. 이 보고에서 단봉낙타의 피부염 감별진단에 Trichophyton verrucosum도 고려해야 한다는 사실을 제시하였다.

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