• Title/Summary/Keyword: leaf and stem

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Effects of Reproductive Organs on Biomass Distribution of Tilia amurensis R$_{UPR}$. (생식기관이 달피나무의 Biomass 분배에 미치는 영향)

  • 이덕수;홍성각
    • Journal of Korea Foresty Energy
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    • v.18 no.1
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    • pp.11-16
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    • 1999
  • Dry weights of leaves, stem and floral organs of 15-year-old Tilia amurensis RUPR., were measured twice on 1 June and 20 August 1995 to examine the difference in biomass production between the reproductive and vegetative twigs which are morphologically neighboring and alternative. The following results were obtained : (1) The biomass of the reproductive twigs was greater than that of the vegetative twigs in both June and August. (2) The ratio of stem to total biomass in the reproductive and the vegetative twigs was greater in August than that in June, while the ratio of leaf biomass was greater in June than that in August. The ratio of floral organ to the total biomass in the reproductive twigs was 14.6% and 27.1% in June and August, respectively. (3) The total twig biomass per leaf biomass was greater in the reproductive twigs than that in the vegetative twigs in both June and August. (4) Net assimilation rate in the floral organs showed 21% of that in the leaves in June and 37% in August.

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A Study on the Dyeing Properties of Silk Fabrics Dyed with Impatiens balsamina extract(II) (봉선화 추출액의 견직물 염색(II))

  • 김애순
    • Textile Coloration and Finishing
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    • v.16 no.3
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    • pp.1-7
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    • 2004
  • To study the dyeability(K/S value) and surface color of silk fabrics dyed with Impatiens balsamina extract, its flower, leaf and stem, was extracted by water. This paper investigated some experiments with Impatiens balsamina extract under the various dyeing conditions such as dyeing temperature, dyeing time, repetition of dyeing, dyeing pH with silk fabrics. The results obtained were as follows. 1. It was found that it $\lambdamax$. of silk fabrics dyed with Impatiens balsamina extract was 260nm and its flower, leaf, stem and flowers(white, pink, violet) had same it $\lambdamax$ at 260nm. 2. K/S value was increased when dyeing temperature, repetition of dyeing and time was higher, value of munsell of silk fabrics dyed with Impatiens balsamina extract was yellow-red. dyeing temperature, repetition of dyeing and time was higher, shifted to longer wavelength side. 3. pH added acetic acid was colored reddish yellow-red, but pH added alum was colored yellowish yellow-red in silk fabrics dyed with Impatiens balsamina extract and repetition of dyeing was increased the dye-uptake.

DNA Topoisomerase I Inhibitory Activity of Stilbenes and Oligostilbenes from Leaf and Stem of Vitis amurensis

  • Kang, Na-Na;Ha, Do Thi;Park, Chang-Sik;Myung, Pyung-Keun;Bae, Ki-Hwan
    • Natural Product Sciences
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    • v.16 no.4
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    • pp.223-227
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    • 2010
  • The DNA Topoisomerase I (DNA Topo I) inhibitory effect of ten isolated compounds (1.10) from the leaf and stem of Vitis amurensis were examined. Among them, amurensin G (5) and r-2-viniferin (7) showed high potent inhibitory activity against DNA Topo I. DNA Topo I, an important target for anticancer drugs, can cause DNA breaks and play a key role during cell proliferation, transcription and repair. Thus, the results suggest that the selected compounds (5 and 7) from Vitis amurensis have a possibility as DNA Topo I-targeting anticancer agents.

A Study on the Dyeing Properties of Silk Fabrics Dyed with Impatiens balsamina extract (봉선화 추출액을 이용한 견직물 염색)

  • 장재철;김애순
    • Textile Coloration and Finishing
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    • v.15 no.1
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    • pp.1-7
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    • 2003
  • To study the dyeability(ΔE value) and color depth of silk fabrics dyed with Impatiens balsamina extracts. its flower, leaf and stem was extracted by water. This paper investigated some experiments under the various dyeing conditions such as dyeing temperature, dyeing time, repetition of dyeing, dyeing pH with silk fabrics dyed with Impatiens balsamina extracts. The results obtained were as follows 1. It was found that $\lambda_{max}$ of silk fabrics dyed with Impatiens balsamina extract was 260nm and its flower, leaf , stem and different colored flower(white, pint violet) had same $\lambda_{max}$ at 260nm. 2. $\Delta{E}$ values were increased when dyeing temperature, repetition of dyeing and time was higher, value of munsell of silk fabrics dyed with Impatiens balsamina extract was Yellow-Red. But dyeing temperature, repetition of dyeing and time was higher, shifted to longer wavelenth side. 3. Silk fabric dyed with Impatiens balsamina extracts at acidic pH was colored reddish Yellow-Red, alkali bath colored yellowish Yellow-Red in silk fabrics dyed with Impatiens balsamina extract.

The Changes in Structural Carbohydrate on Crown Daisy and Butterbur (쑥갓과 머위의 잎과 중기의 구조탄수화물의 변화)

  • 김대진;윤수현;조영수;최미애
    • Journal of Life Science
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    • v.9 no.5
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    • pp.497-503
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    • 1999
  • Change on the structural carbohydrate(several fiberous components) was determined by vegetables(crown daisy and butterbur)-cultivated in Ulsan, Kyungnam, Korea-as its stage of maturity developed. Samples were separated into leaf and stem, which were dried at 7$0^{\circ}C$ for 24hr, and ground to pass a 1mm screen. They were subjected to moisture, crude protein, crude fat and several dietary fiber-DF(dietary fiber, include unavaible components), NDF(neutral detergent fiber), ADF(acid detergent fiber), lignin, hemicellulose, cellulose and protein corrected NDF(c-NDF), IDF(indigestible fiber, include lignin, hemicellulose and cellulose). In general, structural carbohytrate(several dietary fiber) of vegetable was affected by the growth stage. In case of crown daisy and butterbur, dietary fiber in leaf was higher than DF in stem.

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A Bioassay on Susceptivity of Selected Species to Phytotoxic Substances from Tomato Plants (토마토식물의 독성물질에 대한 타 식물의 민감도 검정)

  • 김영식
    • Journal of Plant Biology
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    • v.30 no.1
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    • pp.59-67
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    • 1987
  • To verify allelopathic effect of tomato plants a number of labovatory experiments, seed germination and seedling growth with aqueous extracts and leachates form the tomato plants, have performed. Germination percentage of the tested species was decreased by treatment with leaf, stem and root extracts as extracting time elapses. The leaf extract more inhibits the germination of the seeds than both stem and root extracts. Leachate collected from the tomato plants decreases as much as 50% of the growths in elongation as well as dry weight of seedlings of lettuce and egg plant. It is observed that with a paired-plants grown in U tube pot the tomato roots have excreted allelochemicals to inhibit the growth of the tested species and volatile substances from the tomato plants have suppressed to dry weights of lettuce, to elongation and dry weights of grapevine planted near the tomato plants.

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Pharmacognostical Studies on Ginseng Folium (인삼잎의 생약학적 연구)

  • 박종희
    • Korean Journal of Plant Resources
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    • v.8 no.2
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    • pp.127-133
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    • 1995
  • Ginseng Folium has been used to cure acute gastritis, alcoholism and anemia. The morphological and anatomical characteristics of the leaf and stem of Panax ginseng C.A. Meyer cultivated in Korea for 1 to 6 years are described. It is found that the vessels increase in number and diameter, and also the vascular bundles increase in number, as the plant becomes old. The result showed that the commercial &In Sam Ip& samples on the markets of Pusan, Kumsan, Taegu and Seoul have been derived from the leaf and stem of 4 to 6 years old P. ginseng plants, most of them being 5-6 years old.

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A Basic Study on Storage of Leaf, Stem and Root in Angelica acutiloba Kitag

  • Choi Seong-Kyu
    • Korean Journal of Plant Resources
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    • v.19 no.3
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    • pp.436-439
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    • 2006
  • This study was carried out to obtain basic information for optimum storage method of leaf, stem and root of Angelica acutiloba Radix, which is being utilized as major cultivated herbal medicine materials, root of Angelica acutiloba was stored for 3 months in different packing materials and sealing methods, such as punched packing, sealing and vacuum packing. The results are summarized as follows. The loss in weight as influenced by packing materials and sealing degree was the lowest at vacuum packing and complete sealing condition with transparent polyethylene film. The ratio of root rot during the storage period was not significantly different between polyethylene films, but it was significantly different between sealing conditions. Therefore, vacuum packing and complete sealing with polyethylene film are desirable storage condition for Angelica acutiloba Radix.

Effect of Sta-Green on Leaf and Stem Production of Angelica acutiloba

  • Choi Seong-Kyu
    • Plant Resources
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    • v.8 no.1
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    • pp.13-16
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    • 2005
  • This study was conducted to develop effective production system in greenhouse for leaves and stems of Angelica acutiloba by fertilizing of Sta-Green in pots. The results obtained are summarized as follows. Germination rate of Angelica acutiloba seeds collected in 2003 was $13\%$, while germination rate of seeds Collected in 2004 was above $91\%$. Seed germination rate and plant biomass of Angelica acutiloba collected in 2004 were higher than seed gathering in 2003. Especially, plant growth and yield of Angelica acutiloba grown in pot(The pots was filled with soil mixtures of Sta-Green and Peat Moss mixed with 45:55 ratio.) was the highest. These results indicate that leaf and stem production of Angelica acutiloba can be improved by fertilizing of Sta-Green in pots and optimizing seed collecting time in greenhouse.

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Pharmacognostical Studies on the 'Ggeong Yi Da Ri' (꿩의다리의 생약학적 연구)

  • Park, Jong-Hee;Park, Seong-Su
    • Korean Journal of Pharmacognosy
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    • v.30 no.2
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    • pp.182-191
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    • 1999
  • Korean folk medicine 'Ggeong Yi Da Ri' has been used mainly as remedies for stomach trouble, bruise and neuralgia. The botanical origin of the crude drug has not been studied pharmacognostically. To clarify the botanical origin of 'Ggeong Yi Da Ri', the morphology and anatomy of leaf and stem were examined for the Korean species of Thalictrum plants, such as T. acetaefolium, T. aquilegifolium, T. filamentosum, T. minus var. hypoleucum, T. minus var. stipellatum and T. rochebrunianum. The botanical origin of 'Ggeong Yi Da Ri' was clarified as the leaf and stem from Thalictrum aquilegifolium and T. filamentosum.

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