• 한국식물병리학회:학술대회논문집
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• 한국식물병리학회 2000년도 추계 학술발표회
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• pp.64.2-64
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• 2000

• 한국식물병리학회:학술대회논문집
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• 한국식물병리학회 1999년도 임시총회 및 추계 학술발표회
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• pp.15.1-15
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• 1999

• 한국식물병리학회:학술대회논문집
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• 한국식물병리학회 1999년도 임시총회 및 추계 학술발표회
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• pp.80.2-83
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• 1999

• The Plant Pathology Journal
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• 제17권6호
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• pp.388.3-388
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• 2001

• The Plant Pathology Journal
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• 제29권2호
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• pp.182-192
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• 2013

Numerous root-associated bacteria (rhizobacteria) are known to elicit induced systemic resistance (ISR) in plants. Bacterial cell-density-dependent quorum sensing (QS) is thought to be important for ISR. Here, we investigated the role of QS in the ISR elicited by the rhizobacterium, Serratia marcescens strain 90-166, in tobacco. Since S. marcescens 90-166 produces at least three QS signals, QS-mediated ISR in strain 90-166 has been difficult to understand. Therefore, we investigated the ISR capacity of two transgenic tobacco (Nicotiana tabacum) plants that contained either bacterial acylhomoserine lactone-producing (AHL) or -degrading (AiiA) genes in conjunction with S. marcescens 90-166 to induce resistance against bacterial and viral pathogens. Root application of S. marcescens 90-166 increased ISR to the bacterial pathogens, Pectobacterium carotovorum subsp. carotovorum and Pseudomonas syringae pv. tabaci, in AHL plants and decreased ISR in AiiA plants. In contrast, ISR to Cucumber mosaic virus was reduced in AHL plants treated with S. marcescens 90-166 but enhanced in AiiA plants. Taken together, these data indicate that QS-dependent ISR is elicited by S. marcescens 90-166 in a pathogen-dependent manner. This study provides insight into QS-dependent ISR in tobacco elicited by S. marcescens 90-166.

• The Plant Pathology Journal
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• 제36권6호
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• pp.637-642
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• 2020

Fusarium wilt in tobacco caused by the fungus Fusarium oxysporum f. sp. nicotianae is a disease-management challenge worldwide, as there are few effective and environmentally benign chemical agents for its control. This challenge results in substantial losses in both the quality and yield of tobacco products. Based on an in vitro analysis of the effects of different phenylpropanoid intermediates, we found that the early intermediates trans-cinnamic acid and para-coumaric acid effectively inhibit the mycelial growth of F. oxysporum f. sp. nicotianae strain FW316F, whereas the downstream intermediates quercetin and caffeic acid exhibit no fungicidal properties. Therefore, our in vitro screen suggests that trans-cinnamic acid and para-coumaric acid are promising chemical agents and natural lead compounds for the suppression of F. oxysporum f. sp. nicotianae growth.

• 한국식물병리학회지
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• 제2권2호
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• pp.114-120
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• 1986

BY4품종의 담배를 포장에 이식하면서 이식 하루전과 40일 후에 비병원성 Pseudomonas solanacearum의 현탁액을 담배근권토양에 관주한 결과 7월 상순까지 세균성마름병 발생 속도가 지연되었으나 그 후에는 방제효과가 급속히 감소되었다. 그 결과 잎담배의 $35\%$ 증수 및 kg당 대금으로 $10\%$의 품질상승 효과를 얻을 수 있었다. 비병원성균주처리에 의한 근권상양내 병원균의 밀도증가억제는 인정되지 않았다. $^{32}P$로 표식된 비병원성균주의 담배뿌리를 통한 침입 및 식물체내 이동이 확인되었으며 비병원성균주에 전접종된 담배에 대하여 병원성균주의 침입 및 식물체내 증식이 억제되었다. 이러한 병원성균주의 식물체내 침입 및 증식억제 현상이 병진전 억제와 관련이 있는 것으로 생각되었다.

• Asian Pacific Journal of Cancer Prevention
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• 제16권1호
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• pp.333-338
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• 2015

Background: Oral health professionals are responsible in Iran for providing a brief tobacco cessation program to smoker patients. The aim of this study was to assess Iranian dental student and dentist practice, knowledge and attitudes toward smoking cessation programs. Materials and Methods: A valid and reliable self-administered questionnaire was designed and distributed to 150 dentists working in Isfahan-Iran and 60 dental students. Some questions were developed based on the expected 5A tobacco cessation protocol. Statements on attitudes focused on professional responsibility towards smoking cessation and its effectiveness. Chi-square, ANOVA, and t test were used for statistical analysis. Results: The cessation program in dental settings covers a small group of patients (18%). Some 69.1% (n=96) of dentists reported asking their patients about tobacco use, 64% (n=83) advising their patients to quit, 33.8% (n=47) assessing their patients willingness to quit and 20% (n=28) reported helping their patients in changing their behavior. A far lower percentage reported active involvement in arranging assistance for smokers to quit (4.3%, n=5). Some 22% of students and 26% of dentists disagreed that the tobacco cessation programs should be as part of dentists' professional responsibility and 70% of them were willing to follow the protocol of tobacco cessation for patients. Conclusions: Iranian dentist performance regarding tobacco cessation is weak. Dentists and students indicated their lack of knowledge as the major reason for non-adherence to the protocol. Therefore, planning to encourage dentist to follow the protocol needs continuous educational programs.

• Asian Pacific Journal of Cancer Prevention
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• 제14권4호
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• pp.2483-2486
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• 2013

Background: The aim of this study was to determine the epidemiology of tobacco smoking, toombak dipping and alcohol consumption as risk factors for cancer in the adult population of the northern state of Sudan. Materials and Methods: A cross-sectional survey from March to April 2010, covering 963 adults, was performed. Result: Only 207 had responded, and the male female prevalence was 20.8% and 0.73%. Out of 207 respondents, 29.5% had smoked tobacco in their lifetime, 38% were toombak dippers, while 14% were consumers of alcoholic beverages. Conclusions: The prevalence of toombak dipping was higher than tobacco smoking among the adult population in the northern state of Sudan. Female participation in tobacco and alcohol related studies was found to suffer from major obstacles since these habits are considered as social stigma. Appreciation of the full impact of smoking on population health will definitely make a major contribution to improvement of the poor public health situation in Sudan.

• 한국식물병리학회지
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• 제2권1호
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• pp.12-16
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• 1986

한국을 비롯한 5개국에서 잎담배로부터 8계통, 감자로부터 분리된 1계통 등 모두 9계통의 PVY에 대한 잎담배 품종별 내병성을 온실내에서 조사하였다. 조사된 품종중 Dixie Bright 244-2, McNair 30, 및 Golden Stock Penish 등의 품종은 7가지의 PVY 계통에 대해 높은 내병성 반응을 보였다. 이외 Chile 및 US-NN계통에 대해서도 감수성품종에 비해 내병성을 나타냈다. 품종별 병징의 심, 경에 따른 엽중 바이러스의 농도는 접종된 바이러스 계통과 품종에 다라 다르게 나타나 엽중 바이러스 농도에 따른 내병성 정도 구분은 할 수 없었다.