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감나무 가지마름病에서 分離한 Pestalotia kaki의 2 系統
李貴宰,田吉亨,金炯武,蘇仁永,崔定植 전북대학교 농업과학기술연구소 1994 農大論文集 Vol.25 No.1
A black spot and die-back symptoms were severely occurred on the branch of young persimmon tree at Chonju and Haenam between 1991 and 1992. The Pestalotia kaki isolated from symptoms were investigated in cultural character and pathogenicity. Pestalotia kaki was isolated from the black spot and die-back symptoms. Pestalotia kaki was classified into the strain I and Ⅱ by cultural character. The color of mycelium on the PDA, the strain l was white and turned yellowish in the center, and the strain Ⅱ was white. Conidia formed concentric Bones in the strain Ⅱ, and scattered in the strain Ⅰ . Pathogenicity of the strain I and Ⅱ was simillar.
서장선,전길형,권장식,김상효,백형진,Suh, Jang-Sun,Chon, Gil-Hyong,Kwon, Jang-Sik,Kim, Sang-Hyo,Baek, Hyung-Jin Korean Society of Soil Science and Fertilizer 2003 한국토양비료학회지 Vol.36 No.4
경지이용이 토양 화학성과 미생물 군집상에 어떠한 영향이 있는지 경지 및 미경지 토양을 채취하여 토양지방산, 미생물밀도 및 미생물체량간(biomass C)의 관계를 조사하였다. 경지와 미경지 토양의 pH는 큰 차이가 없었지만, 전기전도도 (EC), 유기물, 유효인산 및 치환성 양이온 함량은 미경지 토양에 비해 경지토양에서 높았다. 훈증추출법에 의해 측정된 미생물체량과 지방산 총 함량간에는 유의한 정의 상관관계가 있었다 ($r^2=0.557$, n=18, p<0.01). 세균, 방선균, 사상균, 원생동물을 나타내는 지표성 지방산 함량은 경지토양에서 높은 경향을 보였다. We examined the relationships among community composition, microbial population, and microbial biomass to determine whether different land use leads to differences in microbial community composition. And also the relationships between soil characteristics and microbial community composition were investigated. There was no difference in pH between uncultivated and cultivated soils, but electrical conductivity, and contents of organic matter, available P and exchangeable cations were greater in the cultivated soil compared to the uncultivated soil. A linear correlation ($r^2=0.557$, n=18, p<0.01) was found between biomass-C estimated with fumigation extraction technique and total amount of fatty acids. An increase of fatty acid methyl esters (FAMEs) for bacteria, actinomycetes, fungi and protozoa was observed in cultivated soil.
農村住民의 健康管理 實踐과 이에 影響을 미치는 要因 調査硏究 : Centered on Rural Community People
이동호,전길형 전북대학교 농업과학기술연구소 1994 農大論文集 Vol.25 No.1
This investigation was attempted to help to establish the basis of the Health Education Program which would perform the health educ;3tion efficiently and bring the reforming of rural people's, health control by measuring the degree of rural peoples compliance concerning health behavior and confirming the relationship of knowledge, concern, learn of health and level of education. The subject of this investigation were made up the case of people who lived in the WanJu Gun, OkKu Gun, Chollabukdo. The tool for this study was the type of questionaire. The data were analyzed by means of percentages, Pearson Correlation Coefficient and Stepwise Multiple Regression. The result of this study are as follows. 1. The subjects reaction to the compliance of health behavior ; According to the average proportion of compliance for health behavior, subjects, compliance in the aspect Family planning Behavior is the highest 81.4% and they showed their compliance in the aspect of the Accident Prevention by 73.9% and in the aspect of Mental Health and Infecious Disease Preventive Behavior by 70.1% , they compliance in the aspect of Personal Hygiene and Daily Life Habit is the lowest 69.4%. 2. Health Knowledge : The whole mark distribution of health knowledge is ranged from the lowest 6 point to the highest 26 point, therefore point range is 20.0. 3. Health Concern: The peole of the average 4.11 point respond positively to the question about the health concern, "We think health is more important than money", when the full mark is 5 point, this is the highest rate. 4. The hypothesis test about the compliance for health behavior and the factors which effect on it 1) The first hypothesis ; "'The more knowledge of health the subjects have, the better they compliance for health behavior" was accepted(γ = 0.7822, P<0.001). 2) The second hypothesis : "'The more interest of health the subjects have, the better they compliance for health behavior" was rejected (γ = 0.0905, p <0.05) . 3) The third hypothesis : "The healthier subjects are, the better they compliance for health behavior" was accepted(γ = 0.2391, p<0.001). 4) The fourth hypothesis ; "The higher educational level, the better they compliance for health behavior" was accepted ( γ= 0.2786, p<0.001). As the above eductiona] level, health knowledge, health status abviously have effect on the compliance for health behavior. Therefore, we must group for the plan to enhance health concern through the regular and systematic health education for rural community people. Besides we must study further on, to find the factors which have effect on the comploance for health behavior and we try to make material for health education.
호남지방에 발병되는 땅콩바이러스의 분리, 동정 및 종자전염
소인영,정성수,전길형,So, In-Young,Cheong, Seong-Soo,Chon, Kil-Hyong 한국현미경학회 1992 Applied microscopy Vol.22 No.1
Viral disease incidence in the peanut fields at Iri, Kochang, Iksan and Puan in Chonbuk province was 0.93% on July and 8.46% on August in 1991. The causal pathogen was identified as peanut stripe virus (PStV) by the results of host plant reaction, immunological assay and observation of virus particles. Seed transmission rates of collected seeds from diseased plants ranged from 12.9 to 14.8% at peanut fields. PStV transmission was higher in small than in large seeds. Seed transmission of PStV was correlated with the age of the plant when inoculated; infection of young plants resulted in more seed transmission than did infection of old plants. Seed transmission of PStV was correlated with pod formation stages when inoculated at the 45th day after sowing; formed seeds for 2 weeks after inoculation resulted in more seed transmission than did formed seeds after 4 weeks. In seed transmission, this causal virus was moved to embryo and cotyledon through gynophore, pod, and funicle from leaves.
신경전달물질 방출 저해제 FS390이 신경세포와 PC12 세포의 돌기신장에 미치는 영향
최민규(Min-Kyu Choi),전길형(Gil Hyoung Chon),이윤식(Yun-Sik Lee) 대한해부학회 2006 Anatomy & Cell Biology Vol.39 No.2
PC12세포에 tritium-label된 norepinephrine ([3H]-NE)을 incorporation시킨 후에 60mM의 고농도의 K+의 자극에 의해서 탈분극후에 방출되는 [3H]-NE의 량을 scintillation countering하여 정량하는 탐색계에서, [3H]-NE의 방출을 효과적으로 저해하는 FS390를 방선균 유래의 대사산물로부터 얻었다. FS390은 또한 PC12세포와 rat cortical neurons에서 동일한 고농도의 K+의 자극에 의한 탈분극 후에 유도되는 신경전달물질로서 ATP의 방출과 몰모트의 neutrophils에서 분비되는 glucrunidase의 조절성분비에서도 유의한 저해 효과를 나타냈다. 이들 결과로부터 신경세포에서의 신경전달물질의 방출기구와 neutrophils에서 분비되는 glucrunidase의 조절성분비에 대해서는 FS390이 각각의 단계에 작용하는 공통의 작용기구를 나타내고 있다고 사료된다. 본 연구에서 FS390의 신경전달물질의 방출에 대한 영향을 해석하기 위하여 신경돌기의 신장에 미치는 영향을 검토한 결과, 신경돌기의 신장을 저해하는 결과를 얻었다. 이 결과로부터 신경전달물질을 효과적으로 저해하는 생리활성물질, FS390이 돌기신장에 미치는 유의한 억제효과로부터 이 물질의 신경전달물질의 방출기구에 대한 중요한 역할이 사료된다. FS390, a novel microbial metabolite from Streptomyces spp. was identified as a small molecular substance and shown a inhibition activities for the release of neurotransmitter from rat hippocampal neuron and PC12 cells. FS390 is an inhibitor of trifiated norepinephrine ([3H]-NE) release in high K+ buffer solution containing ionomycin, indicating that FS390 inhibits neurotransmitter release after the influx of Ca2+ ions. When examined the effect of FS390 on β-glucuronidase release from guinea pig neurophils, FS390 inhibited β-glucuronidas release: when treated with 5 μg/mL of FS390, which was not induced cellular cytotoxicity. The fact that the β-glucuronidase release in neutrophil and norepinephrine release in neuron was inhibited suggests the similarity in the locations and the mechanisms of FS390 action targets. When treated with 5 μg/mL of FS390, [3H]-NE release and neurite extension for both rat hippocampal neurons and PC12 cells were prevented. These observations of FS390 functioning as an inhibitor of neurotransmitter release suggest that FS390 has an important role in synaptic transmission in neuron.