• 식물병연구
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• 제24권1호
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• pp.59-65
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• 2018

Pyraclostrobin은 광범위한 스펙트럼의 항진균 활성이 있는 퀴논외부저해제(Quinone outside inhibitor, QoI)로 작용하는 살균제이다. 기존 보고에 의하면 pyraclostrobin이 일부 세균병과 바이러스병에 대해 병 저항성을 유도한다고 알려져 있다. 본 연구는 pyraclostrobin 항진균제를 활용하여 고추 세균점무늬병(Xanthomonas euvesicatoria)의 예방 가능성을 검토하였다. Pyraclostrobin은 in vitro 상에서 X. euvesicatoria에 대해 항균활성이 없었지만, 고추에 pyraclostrobin 단독(방제가 69%) 또는 streptomycin과 혼합 살포(방제가 90%) 하였을 때, 고추 세균점무늬병 예방 효과를 나타냈다. Pyraclostrobin의 고추 세균점무늬병 예방 효과는 병원균 접종 1-3일전이 효과적이었다. 이상의 결과로 pyraclostrobin 살진균제를 활용하여 고추 세균점무늬병을 효과적으로 예방할 수 있을 것을 사료된다.

• International Journal of Oral Biology
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• 제48권2호
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• pp.9-18
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• 2023

The rapid detection of bacteria in the oral cavity, its species identification, and bacterial count determination are important to diagnose oral diseases caused by pathogenic bacteria. The existing clinical microbial diagnosis methods are time-consuming as they involve observing patients' samples under a microscope or culturing and confirming bacteria using polymerase chain reaction (PCR) kits, making the process complex. Therefore, it is required to analyze the development status of substances and systems that can rapidly detect and analyze pathogenic microorganisms in the oral cavity. With research advancements, a close relationship between oral and systemic diseases has been identified, making it crucial to identify the changes in the oral cavity bacterial composition. Additionally, an early and accurate diagnosis is essential for better prognosis in periodontal disease. However, most periodontal disease-causing pathogens are anaerobic bacteria, which are difficult to identify using conventional bacterial culture methods. Further, the existing PCR method takes a long time to detect and involves complicated stages. Therefore, to address these challenges, the concept of point-of-care (PoC) has emerged, leading to the study and implementation of various chair-side test methods. This study aims to investigate the different PoC diagnostic methods introduced thus far for identifying pathogenic microorganisms in the oral cavity. These are classified into three categories: 1) microbiological tests, 2) microchemical tests, and 3) genetic tests. The microbiological tests are used to determine the presence or absence of representative causative bacteria of periodontal diseases, such as A. actinomycetemcomitans, P. gingivalis, P. intermedia, and T. denticola. However, the quantitative analysis remains impossible, and detecting pathogens other than the specific ones is challenging. The microchemical tests determine the activity of inflammation or disease by measuring the levels of biomarkers present in the oral cavity. Although this diagnostic method is based on increase in the specific biomarkers proportional to inflammation or disease progression in the oral cavity, its commercialization is limited due to low sensitivity and specificity. The genetic tests are based on the concept that differences in disease vulnerability and treatment response are caused by the patient's DNA predisposition. Specifically, the IL-1 gene is used in such tests. PoC diagnostic methods developed to date serve as supplementary diagnostic methods and tools for patient education, in addition to existing diagnostic methods, although they have limitations in diagnosing oral diseases alone. Research on various PoC test methods that can analyze and manage the oral cavity bacterial composition is expected to become more active, aligning with the shift from treatment-oriented to prevention-oriented approaches in healthcare.

• Pediatric Infection and Vaccine
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• 제12권2호
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• pp.101-107
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• 2005

목 적 : 다양한 감염성 질환에서 CRP, 백혈구 수 및 중성구 분획의 차이를 알아보고자 하였다. 방 법: 1996년 1월부터 2001년 12월까지 가톨릭대학교 대전성모병원에 입원한 환아 중 세균성 질환인 세균성 수막염(19명)과 급성 신우신염(55명), 대표적인 바이러스 질환인 홍역(274명), 수두(38명), 마이코플라즈마 질환인 마이코플라즈마 폐렴(160명), 리케치아 질환인 쯔쯔가무시병(39명) 및 감염이 원인으로 여겨지는 가와사끼병(152명)으로 입원한 환아들을 대상으로 의무 기록지를 후향적으로 조사 분석하였다. 결 과 : CRP 값은 세균성 수막염($17.9{\pm}6.4mg/dL$), 가와사끼병($9.1{\pm}5.6mg/dL$), 급성 신우신염($8.1{\pm}3.3mg/dL$) 순으로 높았다. 마이코플라즈마 폐렴과 쯔쯔가무시병(타세균성 질환)이 $3.2{\pm}2.5mg/dL$, 홍역 및 수두의 바이러스성 질환에서는 $1.0{\pm}0.8mg/dL$를 보였다. 백혈구 수 및 중성구 분획에서도 세균성 질환들과 타세균성 질환 및 바이러스성 질환에서 뚜렷한 차이를 보였다. 가와사끼병의 경우 세균성 질환과 유사한 결과를 보였다. 세균성 질환 및 가와사끼병에서 CRP 값과 백혈구 수 및 호중구 분획 사이에 상관관계가 있었다(P<0.01). 결 론 : 다양한 감염 질환에서 평균 CRP 값과 백혈구 수 및 중성구 분획은 병원체에 따라 뚜렷한 차이를 보였다. 하나의 감염성 질환에서 백혈구 수와 중성구 분획은 연령에 따라 차이를 보였으며, 세균성 질환에서 CRP 값과 호중구 수와는 서로 연관이 있었다.

• 대한미생물학회지
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• 제35권5_6호
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• pp.340-342
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• 2000

• 대한수의사회지
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• 제15권4호
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• pp.183-188
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• 1979

• 한국식물병리학회:학술대회논문집
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• 한국식물병리학회 1999년도 정기총회 및 춘계 학술발표회
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• pp.7-8
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• 1999

• 대한수의사회지
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• 제15권5호
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• pp.249-252
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• 1979

• 한국어업기술학회:학술대회논문집
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• 한국어업기술학회 1996년도 수산관련공동학술대회발표요지집
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• pp.449-454
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• 1996

• 한국유기농업학회지
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• 제5권1호
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• pp.87-99
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• 1996

Cultural conditions for mass production of the antagonistic bacteria, Bacillus subtills CAP134 against pathogens causing major airborne diseases to apple tree, effect of temperature, pH, carbon and nitrogen source in the culture broth were investigated. The bacterial growth was most vigorous when the temperature and pH of the culture broth was 30~$35^{\circ}$C, and 7, respectively. As for carbon source, dextrose was best followed in order by dextrose(monosaccharides)>sucrose(disaccharides)$\geq$saccharose(di-saccharides)>starch (polysaccharides). Among different sugars, bacterial growth was favored by in the order of brown, black and white sugars, indicating that the bacterial growth might be promoted by the minor elements presented as impurities in the less purified sugars. As for nitrogen source, organic forms were better to bacterial growth than inorganic forms, that is polypeptone was best followed in order by soy sauce, soybeen milk and inoganic nitrogens. Differences in bacterial growth among different forms of inorganic nitrogen were negligible.

• 한국유기농업학회지
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• 제6권1호
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• pp.85-98
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• 1997

Cultural conditions for mass production of the antagonistic bacteria, Bacillus subtills CAP141 against pathogens causing major airborne diseases to apple trees, effects of temperature, pH, carbon and nitrogen source in the culture broth were investigated. The bacterial growth was most vigorous when the temperature and pH of the culture broth was 30~35$^{\circ}$C and 7, respectively. As for carbon source, dextrose was best followed in order by dextrose(monosaccharide) > sucrose(disaccharide) $\geq$ saccharose (market disaccharides) > starch (polysaccharieds). Among different sugars, bacterial growth was favored by in the order of brown, black and white supars, indicating that the bacterial growth might be promoted by the minor elements presented as impurities in the less purified sugars. As for nitrogen source, organic forms were better to bacterial growth than inorganic forms, that is polypeptone was best followed in order by soy sauce, soybeen milk and inorganic nitrogens. Differences in bacterial growth among different forms of inorganic nitrogen were negligible.