• Title/Summary/Keyword: Juniperus chinensis

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A Study on Selecting Barrier Trees in the Middle Temperature forest Zone of Korea (우리나라 중부지방에서의 자폐수종 선발에 관한 연구)

  • 오구균;이경재;오세원;이봉수
    • Journal of the Korean Institute of Landscape Architecture
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    • v.18 no.2
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    • pp.57-65
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    • 1990
  • To select suitable siecies for barrier trees in the middle tmperature forest zone of Korea, sprout ratio, verdi cal density ratio and impenetrability were analyzed for 41 species including 9 evergreen conifer trees which had been transplanted 18 years ago and maintained as a hedge at Pocheon - Gun, Kyonggi -Do, Korea. 1. The species with high sprout ratio of hedges were Rosa multiflora, Lonicera maackii, Chamaecyparis pisifera, Thuja occidentalis in order at the upper portion, Thuja occidentalis, Rosa multiflora, Chamaecyparis pisifera, in order oa the middle portion, and Thuja occidentals, Chamaecyparis pisigera, Rosa multiflora, Cercdiphyllum japonicum, Cornus kousa, Ulmus pumila, Robinia pseudoacacia in order at the lower portion of hedges. 2. the species with high vertical density ratio were Thuja occidentalis, Chamaecyparis pisifera, Weigela subsessilis, Acer ginnala in order. 3.The species with hight impnetrability were Thuja occidentalis, Chamaecyparis pisifera, Forsythia Koreana, Juniperus rigida, Juniperus chinensis, Pinus strobus in order. 4. the values of correlation coefficents between the sprout ratio and impenetrability are given in table 3 and positive significant correlations can be observed in conifer trees.5. The species with high suitability for tree barrier were Thuja occidontalis, Chamaecyparis pisifera, Acer ginnala, Juniperus chinensis, Rosa multiflora, Counus kousa, Cercidiphyllum japonocum, Weigela subsessilis, Cornus officinalis, Philadelphus schrenckii in order.

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A newly Recorded species of Phycitinae, Dioryctria juniperella Yamanaka (Lepidoptera, Pyralidae), Attacking to Juniperus spp. from Korea (향나무류를 가해하는 알락명나방아과의 한국미록종 1종 Dioryctria juniperella Yamanaka(나비목, 명나방과))

  • ;;H. Yamanaka
    • Korean journal of applied entomology
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    • v.36 no.2
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    • pp.134-136
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    • 1997
  • A Phycitine species, Dioryctiria juniperella Yamanaka, is reported for the first time from Korea. Larval characters is also shown with its illustration. Juniperus chinensis L., J. chinensis var. globosa H., and J. procumbens S. are known as host plants for the species in this country.

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Characteristics and Dyeability of Juniperus Chinensis Extracts (향나무 추출 색소의 특성 및 염색성)

  • Nam, Ki Yeon;Lee, Jung Soon
    • Korean Journal of Human Ecology
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    • v.21 no.5
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    • pp.989-1004
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    • 2012
  • The purpose of this study was to investigate the characteristics of the pigment and the dyeability of juniperus chinensis needles, berry, bark and heartwood extracts using distilled water, methanol, normal butanol and ethyl acetate as a solvent. Ultraviolet-visible absorption spectrum bands of the extracts were measured at around 280nm to 320nm in all the solvent extracts. The maximum absorption wavelength was able to determine tannin. All the solvent extracts except for distilled water extracts were able to confirm the presence of chlorophyll. Infrared absorption spectra (FT-IR) of all parts of the extracts showed broad absorption bands of OH due to phenolic-OH, benzene CH peak of phenol chemical structure, ether-based stretching vibration peak and the peak of flavonoid compounds that appeared in all the solvent extracts. The yield of juniper needles and heartwood in distilled water and methanol extraction were effective. Extraction of berry yields in distilled water was also effective. The yield of ethanol extraction from the bark showed better efficiency. As a result of using distilled water for the dye solution, the color of the fabrics dyed with all extracts of the needles and Y series berries generally showed light Y progression with a strong red tinge. By using a mixture of 20% ethanol and 80% distilled water for the dye solution, the color of the fabrics dyed with needles and berry extracts showed Y series dominantly. The color of the fabrics dyed with Bark and heartwood extracts were dominantly R series.

Induction of Cell Cycle Arrest, Apoptosis, and Reducing the Expression of MCM Proteins in Human Lung Carcinoma A549 Cells by Cedrol, Isolated from Juniperus chinensis

  • Yun, Hee Jung;Jeoung, Da Jeoung;Jin, Soojung;Park, Jung-ha;Lee, Eun-Woo;Lee, Hyun-Tai;Choi, Yung Hyun;Kim, Byung Woo;Kwon, Hyun Ju
    • Journal of Microbiology and Biotechnology
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    • v.32 no.7
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    • pp.918-926
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    • 2022
  • Proteins related to DNA replication have been proposed as cancer biomarkers and targets for anticancer agents. Among them, minichromosome maintenance (MCM) proteins, often overexpressed in various cancer cells, are recognized both as notable biomarkers for cancer diagnosis and as targets for cancer treatment. Here, we investigated the activity of cedrol, a single compound isolated from Juniperus chinensis, in reducing the expression of MCM proteins in human lung carcinoma A549 cells. Remarkably, cedrol also strongly inhibited the expression of all other MCM protein family members in A549 cells. Moreover, cedrol treatment reduced cell viability in A549 cells, accompanied by cell cycle arrest at the G1 phase, and enhanced apoptosis. Taken together, this study broadens our understanding of how cedrol executes its anticancer activity while demonstrating that cedrol has potential application in the treatment of human lung cancer as an inhibitor of MCM proteins.

Anti-Metastatic Activity of Juniperus chinensis Extract by Galectin-3 Inhibition (향나무 추출물의 Galectin-3 저해에 의한 암 전이 억제 효과)

  • Lee, Keyong Ho;Rhee, Ki-Hyeong
    • The Korean Journal of Food And Nutrition
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    • v.25 no.4
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    • pp.713-718
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    • 2012
  • The purpose of this study was to examine the anti-metastatic effect of Juniperus chinensis extract by inhibition of galectin-3 expression. For this study, we carried out the experiment of galectin-3 expression assay and in vivo metastasis mouse model bearing colon 26-M3.1 lung carcinoma, and also MMP-1, MMP-2 and MMP-9 inhibitory assays relating metastasis mechanism. J. chinensis extract significantly showed the inhibitory effect of basal expression and MNNG-induced expression of galectin-3 in colon 26-M3.1 lung carcinoma at the all tested doses (5, 50 and $500{\mu}g/m{\ell}$). In case of the inhibition of MMP-1, MMP-2 and MMP-9, the weak activity was showed at the doses of 50 and $500{\mu}g/m{\ell}$ and was not detected at the dose of $5{\mu}g/m{\ell}$. However, J. chinensis extract significantly showed the anti-metastatic activity on mouse mode bearing colon 26-M3.1 lung carcinoma. Therefore, this study strongly suggests that J. chinensis is a potent inhibitor of galectin-3 expression, and holds great promise for use in inhibiting metastasis induced by elevated expression of galectin-3.

First Report on Four Novel Endophytic Fungal Species Isolated from Leaves of Juniperus chinensis var. sargentii in Korea (눈향나무의 잎에서 분리된 4종의 국내 미기록 내생균)

  • Park, Hyeok;Eom, Ahn-Heum
    • The Korean Journal of Mycology
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    • v.46 no.2
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    • pp.114-121
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    • 2018
  • We isolated endophytic fungi from the leaves of the conifer Juniperus chinensis var. sargentii inhabiting Mt. Hallasan. The fungal isolates were identified based on phylogenetic analysis using nucleotide sequences of the internal transcribed spacer region, large subunit region of ribosomal DNA, translation elongation factor, and ${\beta}$-tubulin region. In this study, we confirmed four species of unreported endophytic fungi in Korea, Allantophomopsis lycopodina, Epicoleosporium ramularioides, Kabatina juniperi, and Seiridium podocarpi. We describe their morphological characteristics and the results of the phylogenetic analysis.

Study of the Tone Variation on Juniperus chinensis L. and Populus glandulosa Uyeki by Photographs (사진상(寫眞上)에 나타난 향나무(Juniperus chinensis L.)와 수원사시나무(Populus glandulosa Uyeki)의 색조변화(色調變化)에 관(關)한 연구(硏究))

  • Kim, Kap Duk
    • Journal of Korean Society of Forest Science
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    • v.13 no.1
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    • pp.1-24
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    • 1971
  • In order to elucidate the feasibility to identify the plant species through the photographic tone this study was made. In this study the author made photographs of Juniperus chinensis L., and Populus glandulosa Uyeki, with the panchromatic film using either yellow filter or red filter in different seasons respectively. The author analyzed the value of tone variation at the level of stereoscopic view of the same photographs by using tone scale and Automatic Micro-Photo-Densitometer. The results obtained are summarized as follows: A. Tone scale reading 1. The tone of Populus glandulosa Uyeki was darker than that of Juniperus chinensis L. in a photograph. 2. Regardless of the tree species, tone of photographs obtained with yellow filter was darker than that with red filter. 3. Along the progresses of seasons, the photographic tone was changed. That is, from the spring to the summer it showed darker and than, from the summer to winter it changed lighter. 4. During winter and spring the discrimination between the both species of trees can be easily made by stereoscopic view whether there are leaves on the tree or not rather than by tone observation. 5. Regardless of tree species, variation of tone due to the age was noticed. The older trees have darker tone than the younger one. 6. It is recognized that the yearly difference depends on insolation quantities. 7. The highest reflex light-waves were in between $600m{\mu}$ and $660m{\mu}$ for both species of trees. B. Density reading 1. For the density reading, there was the same tendency as in tone scale reading. 2. The changes of peaks of the scanning curves with Populus glandulosa Uyeki is smoother and takes place in lower position than with Juniperus chinensis L. 3. The scanning curves on the 20th May was smoothest, and change of peaks increased gradually according to the season progresses. 4. In relation to the types of filter the photographs with yellow filter showed less changes of peaks then that with red filter.

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Effects of Cutting Condition on Rooting and Early Growth of a Rare Endemic Juniperus chinensis var. sargentii HENRY (삽목조건이 희귀수종 눈향나무의 발근과 초기생장에 미치는 영향)

  • Ahn, Sang-Yeol;An, Byung-Seop;Park, Soo-Jeong;Kim, Zhoo-Hyeon;Lee, Sang-Woo
    • Journal of agriculture & life science
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    • v.45 no.4
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    • pp.73-80
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    • 2011
  • This study was conducted to elucidate the best cutting condition in propagation of Juniperus chinensis var. sargentii in respect of survival rate, rooting rate, and early growth after cutting via process of cutting time, cutting media, cutting type and growth regulators. As for cutting time, rooting rate was 68.3% on April, which was higher than 39.5% on May and 32.5% on June. The best cutting media was stream sand of rooting rate 72.7%. Those of mixed soil and decomposition were 40.1% and 27.5% each. The effect of growth regulators was different according to the kind of cutting media. There was no effect on stream sand media which showed the highest rooting rate, while it was very effective on the media of decomposition of granite, which rooting rate showed the lowest. Hardwood as cutting materials showed somewhat higher survival and rooting rate compared to semi-hardwood. The cutting with hardwood condition to stream sand on April, it is regarded to be the most effective condition for Juniperus chinensis var. sargentii to increase survival and rooting rate. Therefore in this experiment it is considered that the best season cutting is April, and the most useful media and plant materials stream sand, and hardwood respectively.

Distribution of High Mountain Plants and Species Vulnerability Against Climate Change (한반도 주요 산정의 식물종 분포와 기후변화 취약종)

  • Kong, Woo-Seok;Kim, Kunok;Lee, Slegee;Park, Heena;Cho, Soo-Hyun
    • Journal of Environmental Impact Assessment
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    • v.23 no.2
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    • pp.119-136
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    • 2014
  • This work aims to select the potentially vulnerable plant species against climate change at alpine and subalpine belts of Mts. Sorak, Jiri, and Halla, from central, southern, southern insular high mountains of the Korean Peninsula, respectively. The selection of global warming related vulnerable plants were performed by adapting various criteria, such as flora, endemicity, rarity, floristically specific and valuable species, species composition at mountain summits, horizontal and vertical ranges of individual species, and their distributional pattern in the Korean Peninsula. Line and quadrat field surveys along the major trails from all directions at height above 1,500 meters above sea level of Mts, Sorak, Jiri and Halla were conducted each year during spring, summer, and autumn from 2010 to 2011. Based upon above mentioned eight criteria, high level of climate change related potentially vulnerable arboral plants, such as Rhododendron aureum, Taxus caespitosa, Pinus pumila, Oplopanax elatus, Vaccinium uliginosum, and Thuja koraiensis are noticed from at subalpine belt of Mt. Sorak. Species of Abies koreana, Rhododendron tschonoskii, Oplopanax elatus, Taxus cuspidata, Picea jezoensis, and Juniperus chinensis var. sargentii belong to climate change concerned vulnerable species at subalpine belt of Mt. Jiri. High level of climate change related species vulnerability is found at alpine and subalpine belts of Mt. Halla from Diapensia lapponica var. obovata, Salix blinii, Empetrum nigrum var. japonicum, Vaccinium uliginosum, Juniperus chinensis var. sargentii, Taxus cuspidata, Rhamnus taquetii, Abies koreana, Hugeria japonica, Prunus buergeriana, and Berberis amurensis var. quelpartensis. Countermeasures to save the global warming vulnerable plants in situ are required.

Studies on the Present Status of Evergreen Ground-Cover Plants in Winter of Seoul (서울시내 동절기 상록성 지피식물식재 현황에 관한 조사연구)

  • 이정석;방광자;곽병화
    • Journal of the Korean Institute of Landscape Architecture
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    • v.19 no.3
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    • pp.1-15
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    • 1991
  • The current status of evergreen ground-cover plants as of in the winter months in 50 places selected at random in Seoul was assessed to see how they are at the present, and the following matters of evergreen ground-cover plants were observed to be common aspect of them today during the year of 1989 and 1990 and in winter of Seoul. 1. Ground-cover area in 50 different places of Seoul was 36% of the green area, and the evergreen ground-cover area was 3% of total ground-cover area. As the result, most of ground cover plants founded to be zoysia grasses. 2. Total number of evergreen ground-cover plants species was 24, and the species most frequently found were Juniperus chinensis and horizontalis, Buxus koreana, Liriope platyphylla var. nana. Taxus cuspidats, Rhododendron lateritium, Pleioblastus pygmaea, Poa pratensis in that order of the number of plasces assessed, and sere Poa pratensis, Agrostis tennuis, Liriope platyphylla, Buxus koreana, Juniperus chinensis and horizontalis, Taxus cuspidata. var. nana, Rhododendron lateritium in the order of area planted. 3. Woody plants included 9 species and occupied 16% in the area, also introduced plants included 14 species and occupied 79% in the area. As introduced evergreen grasses occupied, almost of evergreen ground-cover herbs, planting of evergreen ground-cover herbs and native plants are thought to be desirable. 4. Flowering plants of 16 species were found to be 16% of the total evergreen ground-cover area. 5. The ratio of topographical difference, such as plain versus slope for planting site, was 82 and 18% respectively, and sunny versus shady and intermediate places were 72, 15 and 13% respectively. 6. Although appearance of plants was generally fair, poor and drying plants were assessed 33% for the number of places planted, and 11% for the area. It seems to be necessary to manage those plants to their growth characteristics, and desiable to introduce various plant species adaptable to the winter climate of Seoul and grow for the winter landscaping purpose. 7. The poor use and lack of evergreen ground-cover plants are regarded to be deficient in the valus and reconization of them, particularly in the landscaping works. It is therefore considered important to bring out pertinent measures against these inadequate situations.

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