• 제목/요약/키워드: leaf movement

검색결과 62건 처리시간 0.019초

음양이합론(陰陽離合論)을 바탕으로한 개합추(開闔樞) 이론(理論) 연구(硏究) (Study on the bolt-leaf-hanges in Three-yum and Three yang based on Treatise on the Darting and meeting of Yum and yang)

  • 하근호;권영규;김광중
    • 동의생리학회지
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    • 제14권2호통권20호
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    • pp.157-178
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    • 1999
  • In terms of the bolt-leaf-hanges in Three-yum and Three yang I referd to successive medical books and many recent literatures on the basis of Huangjenegeong Somun Treatise on the Darting and meeting of Yin and yang, thus considerd concept of successive commentators about the bolt-leaf-hanges in Three-yum and Three yang and reconstructed and systeamtically arranged the bolt-leaf-hanges's interrelationship, yum-yang's relation and movement of six chnnel, and then studied there trinciple in all the universe apply the body and the process is operated by the bolt-leaf-hanges in the trinciples followed in human make his life adaption environment. The process is operated by the bolt-leaf-hanges in Three-yum and Three yang. The trinciples followed in. Firstly, Three-yum and Three yang is not dirrerentiate by many, middle, little of yum-yanggi's different function & role. Secondly, Three-yum and Three yang is negatively related white showing that there is the bolt-leaf-hanges relationship through space of Three-yum and Three yang. Through internal relationship of Three yum channel & Three yang channel, it can be proven that Three-yum and Three yang is in negative relation and through achieving the bolt-leaf-hanges relation in dimensional concept, it can be proven that it can actually be applied to human. Thirdly, by showing Three-yum and Three yang's the bolt-leaf-hanges relation is relation between Three yum & Three yang as well as negative relation, it can be shown that Three-yum and Three yang's the bolt-leaf-hanges activity is circular, and that it maintains itself through appropriate transformation. Fourth, understanding of Three-yum and Three yang's the bolt-leaf-hanges relationship and yum-yang Concern & six channer's activity has been varied. It means that the understanding is affected by socity, philosophical & research culture of the various times. The purpose has been to systematically arrange and diagnosing Three-yum and Three yang's the bolt-leaf-hanges and thus make up a fundamental for recognition. But, further study should be carried out on medical explanation on the bolt-leaf-hanges and interpretation and operation of the bolt-leaf-hanges in O-UnYukKiron.

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동적 다엽콜리메이터의 Leaf gap이 전산화 치료계획에 미치는 영향 (The dosimetric impact on treatment planning of the Dynamic MLC leaf gap)

  • 김정미;윤인하;홍동기;백금문
    • 대한방사선치료학회지
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    • 제26권2호
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    • pp.233-238
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    • 2014
  • 목 적 : 최근 사용이 급증하고 있는 미국 베리안사의 이클립스 치료계획 시스템은 치료기에 설치되어 있는 다엽콜리메이터의 충돌 보호를 위해 존재하는 하드웨어적 제한성을 립 갭이라는 설정을 통하여 소프트웨어적으로 극복함으로써 정확한 치료계획을 구현 할 수 있도록 한다. 본 연구에서는 이클립스 치료계획 시스템에 설정되어 있는 립 갭이 치료계획에 미치는 영향을 분석하고 정확한 임상적용에 이용할 수 있도록 하고자 한다. 대상 및 방법 : 연구에 사용되어진 이클립스 치료계획 시스템의 버전은 11.0이다. 시스템에 설정되어 있는 립 갭은 각 치료기와 광자 에너지별로 측정되었다. 일반적으로 0.05~0.30 mm의 값을 가지고 있고, 다엽콜리메이터의 교정상태에 따라 다르므로 일괄되게 적용하지 않고 측정를 통하여 적용한다. 본 연구에서는 세기변조와 용적변조 치료계획을 측정된 각각의 립 갭을 적용하고, 립 갭이 달라질 때마다 치료계획의 영향을 Dmax, CI 등을 이용하여 평가하였다. 결 과 : 동일한 치료계획을 각각의 치료기에서 립 갭을 변화하며 평가하였을 때, 립 갭이 0.05 mm ~ 0.50 mm로 증가할수록 Dmax, CI 의 값이 2~5% 이상 증가하였다. 세기변조방사선치료계획과 용적변조방사선치료계획 모두 동일한 경향을 나타내었고 각 치료계획 간의 유의성은 찾아 볼 수 없었다. 결 론 : 치료기의 다엽콜리메이터의 립 갭 설정은 일반적으로 고유한 측정값을 가지고 있다. 하지만, 다엽콜리메이터의 노후, 교정, 수리 및 점검 후에 립 갭은 변할 수 있고, 이러한 값은 결국 치료계획에 영향을 미치기 때문에 반드시 확인 후 치료에 적용해야 한다. 경우에 따라선 립 갭을 초기 설정값을 유지하는 할 수 있는데, 이는 치료계획에 미치는 영향을 무시할 수 있기 때문에 바람직하지 않다.

Ginsenoside profiles and related gene expression during foliation in Panax ginseng Meyer

  • Kim, Yu-Jin;Jeon, Ji-Na;Jang, Moon-Gi;Oh, Ji Yeon;Kwon, Woo-Saeng;Jung, Seok-Kyu;Yang, Deok-Chun
    • Journal of Ginseng Research
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    • 제38권1호
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    • pp.66-72
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    • 2014
  • Panax ginseng is one of the most important medicinal plants in Asia. Triterpene saponins, known as ginsenosides, are the major pharmacological compounds in P. ginseng. The present study was conducted to evaluate the changes in ginsenoside composition according to the foliation stage of P. ginseng cultured in a hydroponic system. Among the three tested growth stages (closed, intermediate, and opened), the highest amount of total ginsenoside in the main and fine roots was in the intermediate stage. In the leaves, the highest amount of total ginsenoside was in the opened stage. The total ginsenoside content of the ginseng leaf was markedly increased in the transition from the closed to intermediate stage, and increased more slowly from the intermediate to opened leaf stage, suggesting active biosynthesis of ginsenosides in the leaf. Conversely, the total ginsenoside content of the main and fine roots decreased from the intermediate to opened leaf stage. This suggests movement of ginsenosides during foliation from the root to the leaf, or vice versa. The difference in the composition of ginsenosides between the leaf and root in each stage of foliation suggests that the ginsenoside profile is affected by foliation stage, and this profile differs in each organ of the plant. These results suggest that protopanaxadiol- and protopanaxatriol(PPT)-type ginsenosides are produced according to growth stage to meet different needs in the growth and defense of ginseng. The higher content of PPT-type ginsenosides in leaves could be related to the positive correlation between light and PPT-type ginsenosides.

한발조건이 콩식물체의 엽운동, 광합성능, 증산량, 수량 및 관련 형질에 미치는 영향 (Effects of Water Stress on Leaf Orientation, Apparent Photosynthetic Rate, Transpiration Rate, Yield and Its Related Traits in Soybean Plants)

  • 천종은;김진호
    • 한국작물학회지
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    • 제37권4호
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    • pp.313-319
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    • 1992
  • 토양수분 부족이 콩식물체의 엽운동, 광합성능, 증산량, 수량 및 관련 형질에 미치는 영향을 조사하기 위해서, '단엽콩', '방사콩', '보광콩', '무한콩'을 비닐하우스 내에 폿트 재배에서 2주간 단수처리하여 실험을 하였다. 1. 광합성능은 광량(0.887$^{**}$ ), 기공전도율(0.788$^{**}$ ) 및 엽온(0.744$^{**}$)과 고도의 유의적인 정 상관이 있었다. 2. 1일중 광량과 온도가 증가함에 따라 콩의 복엽중 중앙의 소엽은 측렬의 소엽에 비해 더 빨리 엽운동이 시작되고 광합성능이 높은 반면에 수광량, 엽온은 다소 낮았다. 3. 한발구에 비해 관수구의 광량은 358 umole $m^{-2}$ $s^{-1}$, 기공전도율은 0.2 mole $m^{-2}$ $s^{-1}$, 엽온은 9$^{\circ}C$, 증산량 3.7 mole $m^{-2}$ , 광합성능은 8.5 $CO_2$, $\mu$mole $m^{-2}$ $s^{-1}$이 각각 높았다. 4. 관수구에 비해 한발구의 수량 및 관련 형질이 다양하게 감소되었다 ; 개체당 건물중 8%, 개체당 근류중 7%, 근중 14%, 간장 3%, 분지수 7%, 경태 8%, 개체당 협수 17%, 개체당 립중 17%가 각각 감소되었다.

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Movement of Zucchini yellow mosaic vims Involved in Symptom Severity on Zucchini Squash

  • Park, Seung-Kook;Yoon, Ju-Yeon;Park, Sun-Hee;Ryu, Ki-Hyun
    • The Plant Pathology Journal
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    • 제19권4호
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    • pp.217-220
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    • 2003
  • Zucchini squash (Cucurbita pepo cv. Black Beauty) plants infected with A strain of Zucchini yellow mosaic virus (ZYMV-A) isolated from a hollyhock plant showed systemically severe mosaic symptom, similar to previously established Cu strain of ZYMV. However, initial symptom of squash infected by ZYMV-A strain was generally more severe than those infected by ZYMV-Cu. Using leaf-detachment assay, examination of kinetics of accumulation of the coat protein (CP) in systemic loaves of squash plants showed that CPs of ZYMV-A appeared earlier than those of ZYMV-Cu. However, both ZYMV-A and ZYMV-Cu showed similar kinetics of CP accumulation 7 days post-inoculation. These results indicate that different rates and initial severity of systemic symptom development were due to differences in the rate of movement rather than vims replication.

PERFORMANCE OF THE GOAT FED GRASS, SHRUB AND TREE FODDERS DURING THE DRY SEASON IN BALI, INDONESIA

  • Sukanten, I.W.;Nitis, I.M.;Uchida, S.;Putra, S.;Lana, K.
    • Asian-Australasian Journal of Animal Sciences
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    • 제9권4호
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    • pp.381-387
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    • 1996
  • An experiment was carried out for 12 weeks to study the feeding behaviour, growth and carcass characteristics of cross-bred goats. Nine bucks with an average live weight of $18.02{\pm}0.9kg$ were allocated in a completely randomized block design arrangement, consisting of three feeding regimes and three blocks. The feeding regimes consisted of 100% natural grass (Treatment A), 100% gliricidia leaf (Treatment B) and 100% ficus leaf (Treatment C). Frequency of turning-over and sniffing the feed and duration and frequency of ruminating, defaecating, and urination of goats in treatment B were longer, while duration of masticating and jaw movement of chewing one bolus was shorter than those of goats in treatments C and A (p < 0.05). Furthermore, goats in treatment B gained more live weight, consumed more feed, consumed less water and was more efficient in utilizing the feed than goats in treatments C or A (p < 0.05). The dressing percentage, carcass length and carcass fat of goats in treatment B were higher and their bone percentages were lower than those in treatments C and A (p < 0.05). There is an indication that feeding gliricidia and ficus leaves during the dry season could not only increase the body weight and improve carcass quality of the goat but also save water for household needs.

아까시나무 황화현상 발생임분의 토양 이화학적 특성 (Soil Physiochemical Properties in Leaf-yellowing Black Locust (Robinia Pseudo-acacia L.) Stands)

  • 이승우;변재경;지동훈;권영대
    • 한국토양비료학회지
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    • 제42권6호
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    • pp.409-414
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    • 2009
  • 아까시나무는 척박지에서 적응력이 뛰어나 과거 산림녹화와 사방조림 등에 많이 이용된 수종이다. 그러나 2000년 이후 황화현상이 국지적으로 빈번히 발생해 오다가 2006년에는 전국적으로 확산된 바 있다. 따라서 본 연구는 경기도 오산시 3개 지역에서 아까시나무의 황화현상 피해지와 미피해지 내에서 산림토양의 물리화학적 특성을 조사, 분석하여 그 관계성을 파악하고자 수행되었다. 조사지 일대 토양은 사방지토양, 갈색건조산림토양 및 갈색약건산림토양이 주를 이루었다. 피해지의 유효토심(16cm)과 전토심(25cm)은 미피해지(30cm, 56cm)에 비해 현저히 낮게 나타났다. 또한 미피해지에 비해 피해지 토양에서 고상률은 높은 반면 기상률은 낮고, 가비중도 높은 결과를 보여 근계부내 공기와 수분 이동성의 상대적 저하를 반영하였다. 또한 전체 조사지가 산성도가 매우 높은 강산성 토양이지만 피해지의 토양산도는 평균 pH 4.42로 미피해지의 pH 4.54보다 다소 낮았으며, 토양 내 유효인산, 칼슘, 마그네슘 함량과 염기포화율의 결과 역시 피해지에서 낮게 나타났다. 이러한 미피해지에 비해 열악한 황화현상 피해지의 토양 물리화학적 성질은 양분과 수분에 대한 보유 및 공급능력의 상대적 저하로 아까시나무 임분이 다른 환경 스트레스에 보다 민감하게 반응할 수 있음을 반영한다.

The Use of a Tobacco mosaic virus-Based Expression Vector System in Chrysanthemum

  • Park, Minju;Baek, Eseul;Yoon, Ju-Yeon;Palukaitis, Peter
    • The Plant Pathology Journal
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    • 제33권4호
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    • pp.429-433
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    • 2017
  • Chrysanthemums (Chrysanthemum morifolium) are susceptible to tobacco mosaic virus (TMV). TMV-based expression vectors have been used in high-throughput experiments for production of foreign protein in plants and also expressing green fluorescent protein (GFP) to allow visualization of TMV movement. Here, we used TMV expressing the GFP to examine the infection of chrysanthemum by a TMV-based expression vector. Viral replication, movement and GFP expression by TMV-GFP were verified in upper leaves of chrysanthemums up to 73 days post inoculation (dpi) by RT-PCR. Neither wild-type TMV nor TMV-GFP induced symptoms. GFP fluorescence was seen in the larger veins of the inoculated leaf, in the stem above the inoculation site and in petioles of upper leaves, although there was no consistent detection of GFP fluorescence in the lamina of upper leaves under UV. Thus, a TMV-based expression vector can infect chrysanthemum and can be used for the in vivo study of gene functions.

소맥엽신의 기공운동과 환경조건과의 관계 III. 토양수분 및 도복이 소맥엽신의 기공개도에 미치는 영향 (Stomatal Movement and Related Environmental Factors to Stomata in the Wheat III. Effect of Soil Water Potential and Lodging on the Stomatal Aperture in Wheat)

  • 남윤일;하용웅;박무언
    • 한국작물학회지
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    • 제30권1호
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    • pp.33-38
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    • 1985
  • 토양수분, 질소시비량 및 도복의 발생 유무가 소맥엽신의 기공개도에 미치는 영향을 알고져 소맥 조광 품종을 공시하여 침윤법으로 개화기에 기공개도의 일중변화를 조사하였던바 그 결과는 다음과 같다. 1. 기공이 폐공되는 시각은 토양수분 Potential이 낮을수록 빨라졌으며 폐공되는 정도도 컸었다. 2. 기공개도는 하위엽이 상위엽에 비하여 작았고 토양수분 Potential 이 낮을수록 기공개도의 감소정도는 더욱 컸다. 3. 도복된 맥체의 기공개도는 정상 맥체에 비하여 작았는데 그 경향은 토양수분 정도 및 측정시각에 관계없이 동일하였다. 4. 질소 보비구는 소비구에 비하여 기공개도가 큰 일중변화를 하였는데 도복구나 건조구에서도 같은 경향이었다. 5. 도복후 일수가 경과함에 따라 기공개도는 크게 감소하였는데 도복후 6 일에는 무도복구에 비하여 50%이하의 개도를 보였으며 그 감소정도는 하위엽이 더욱 컸으며 일중에서는 오후에 현저하였다.

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Comparative Analyses of Tomato yellow leaf curl virus C4 Protein-Interacting Host Proteins in Healthy and Infected Tomato Tissues

  • Kim, Namgyu;Kim, Jinnyun;Bang, Bongjun;Kim, Inyoung;Lee, Hyun-Hee;Park, Jungwook;Seo, Young-Su
    • The Plant Pathology Journal
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    • 제32권5호
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    • pp.377-387
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    • 2016
  • Tomato yellow leaf curl virus (TYLCV), a member of the genus Begomovirus, is one of the most important viruses of cultivated tomatoes worldwide, mainly causing yellowing and curling of leaves with stunting in plants. TYLCV causes severe problems in sub-tropical and tropical countries, as well as in Korea. However, the mechanism of TYLCV infection remains unclear, although the function of each viral component has been identified. TYLCV C4 codes for a small protein involved in various cellular functions, including symptom determination, gene silencing, viral movement, and induction of the plant defense response. In this study, through yeast-two hybrid screenings, we identified TYLCV C4-interacting host proteins from both healthy and symptom-exhibiting tomato tissues, to determine the role of TYLCV C4 proteins in the infection processes. Comparative analyses of 28 proteins from healthy tissues and 36 from infected tissues showing interactions with TYLCV C4 indicated that TYLCV C4 mainly interacts with host proteins involved in translation, ubiquitination, and plant defense, and most interacting proteins differed between the two tissues but belong to similar molecular functional categories. Four proteins-two ribosomal proteins, S-adenosyl-L-homocysteine hydrolase, and 14-3-3 family protein-were detected in both tissues. Furthermore, the identified proteins in symptom-exhibiting tissues showed greater involvement in plant defenses. Some are key regulators, such as receptor-like kinases and pathogenesis-related proteins, of plant defenses. Thus, TYLCV C4 may contribute to the suppression of host defense during TYLCV infection and be involved in ubiquitination for viral infection.