• The Journal of Internal Korean Medicine
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• v.31 no.3
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• pp.448-456
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• 2010

Objective : To summarize and make a reference number of antihyperlipidemic herbal plants worldwide. Method : We surveyed all papers of antihyperlipidemic studies using herbal plants in Pubmed database as "hyperlipidemia AND herb", "hyperlipidemia AND herbal", etc. of Default Tag "Title". The number of papers, the formation of experiments, frequency of herbal plants studies, and main studies were analyzed. Result : Total 178 studies were finally selected. The number of papers were rapidly was increased since 1998. RCT studies were most papers(39.9%). Most studies were about plant sterol or plant stanol studies(78%). 10 papers studied about Herbal plants. Crataegus pinnatifida Bunge, Salvia miltiorrhiza Bunge, Alisma orientale(Sam.) Juz. and so forth were relatively studied much. Conclusion : This study produced an overview of worldwide antihyperlipidemic plants. This result may provide a valuable information for development of Korean herbal medicine against hyperlipidemia in the future.

• The Korea Journal of Herbology
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• v.27 no.2
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• pp.17-24
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• 2012

Objective : For the purpose of investigating the herbal resources of Dokdo island, this study was designed. Method : For the first time, we searched the native plants of Dokdo island from research data. And we examined herbological books on the plants of Dokdo island. Result : The native herbaceous plants in Dokdo island were 27 family and 73 species, and the medicinal plants were 49 species among them. The woody plants in Dokdo island were 12 family and 13 species, and the medicinal plants were 10 species among them. The main medicinal parts of medicinal plants were the whole body of herbs, roots, and seeds in order. The herbal medicines with cold or cool nature were 45 species, they took the top nature of the herbal medicines. According to the properties and principal action of native herbal medicines in Dokdo island, the major parts were classified into drugs for clearing away heat, eliminating toxin, activating blood flow and removing blood stasis, urination, removing heat from the blood and stopping of bleeding. The number of native herbal medicines with small toxicity in Dokdo island were 7 species. Conclusion : For the purpose of preserving the native plants of Dokdo island, we should recognize not only medical benefits but also matters that demand special attention.

• The Journal of Korean Medicine
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• v.30 no.5
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• pp.42-49
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• 2009

Objectives: To summarize and make a reference number of herbal plant-derived antioxidant researches worldwide. Methods: We surveyed all papers of antioxidant-focused studies using plants in PubMed database as "herbal plant AND antioxidant" of Default Tag "Title". The type of materials used in the studies, formation of experiments, frequency of herbal plants studied and their actions, and main study subjects were analyzed. Results: The number of studies on herbal plant-related antioxidant effects have increased worldwide since 2000. Studies have been performed using mainly single plant and single compounds for medical disorders such as immunity, heart/blood, liver, and central nerve functions. The list of plants frequently includes SalviamiltiorrhizaBge.,GinkgobilobaL., ScutellabaicalensisGeorgi.,and so on. Most of these plants have strong effects against oxidative stress and also against free radicals and increase the activities of antioxidant enzymes. Conclusion: This study produced an overview of previous research on antioxidant-focused herbal plants. This result will provide useful information for the field of Korean traditional medicine for the development of drugs related to antioxidants.

• Korean Journal of Plant Resources
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• v.33 no.6
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• pp.682-688
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• 2020

Hemp (Cannabis sativa L.) is a dioecious plant, although monoecious plants are bred in some cultivars for fiber or seed production. Recently, hemp has received attention for medicinal use with some cannabinoids, including cannabidiol. Self-fertilization for breeding inbred lines is difficult because of dioeciousness and anemophily in hemp. This experiment was conducted to develop a self-fertilization method by forming female flowers and seeds from male plants of dioecious hemp. To induce the formation of female flowers on male plants, 500 mg L^-1 of ethephon was sprayed on plants at soon, seven and fourteen days after primordia formation. The plant ratio of female flowers formation and the number of harvested seeds were increased by ethephon treatment. Female flowers of male plants have 5 stigmas in contrast to the dual stigma of female 1plants. Male plant seeds were lighter and smaller than those from female plants. Although the germination rate was lower than that of normal seeds from female plants, the seeds from male plants germinated to grow seedlings. Thus, we suggest that hemp plants should be treated with ethephon at soon after primordia formation to induce the formation of more female flowers on the male plants.

• Journal of People, Plants, and Environment
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• v.22 no.6
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• pp.593-600
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• 2019

We identified how plants affected by the human behavior of crushing plants respond and what kind of plants responded sensitively. We investigated Lactuca sativa "Gaesebadak", Syneilesis palmata and Peucedanum japonicum as plants that humans use for edible purposes, and Achyranthes japonica and Bidens bipinnata as wild plants that stick to people's clothes and disperse seed. Plants exposed to human breathing air were compared with those exposed to human breathing air after being crushed. Methyl jasmonate (MeJA), a chemical word, was measured using Syft/MS, which detects real-time VOC, and related genes were analyzed. The amount of MeJA of Syneilesis palmata and Peucedanum japonicum as edible plants was greater than that of non-edible plants that disperse seeds using humans. The amount of MeJA ranged from 0.20 ppb to 0.35 ppb when the control group were not exposed to human breathing air. On the other hand, MeJA decreased after increasing for the first hour in human breathing air. Also, MeJA affected by human breathing after crushing plants was higher than that affected by just human breathing air. Peucedanum japonicum showed the most distinctive difference between the treatment with human breathing after crushing plants and the treatment with just human breathing. In addition, the gene activity of JAR1 and JMT increased 3 hours after the treatment with human breathing after crushing plants. Therefore, in the treatment with human breathing after crushing plants, the concentration of MeJA and the activity of related genes showed the same tendency to increase. As a result, the plant that responded sensitively to human behavior was Peucedanum japonicum. Plants released MeJA as a chemical word in the treatment with human breathing air after crushing plants.

• Korean Journal of Environmental Biology
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• v.38 no.4
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• pp.603-610
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• 2020

The problem of increased resistance to pesticides is caused by the management of Bemisia tabaci, which depends almost entirely on pesticides, and to solve this problem, we investigated the host preference of B. tabaci among herbal plants to develop a possible attractant for alternative control methods. Experiments were conducted in greenhouse tomatoes at the National Institute of Horticultural Science and Herbal Science in Wanju-gun. Major herbal plants such as lemon balm, chocolate mint, rose geranium, and apple geranium were installed 50cm from the ground and 30cm from the top of the tomatoes, then the density of B. tabaci was investigated. As a result of examining the density of B. tabaci by the location of the herbal plants, it was found that the lemon balm location showed the highest B. tabaci density while rose geranium and apple geranium were rather avoided. These results are expected to be helpful in the development of alternative B. tabaci control methods using herbal plants including attractants, repellents, and trap plants.

• Korean Journal of Agricultural Science
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• v.49 no.1
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• pp.121-128
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• 2022

Fusarium wilt disease caused by Fusarium species is a major problem affecting cultivated cucurbit plants worldwide. Fusarium species are well-known soil-borne pathogenic fungi that cause Fusarium wilt disease in several cucurbit plants. In this study, we aimed to identify and classify pathogenic Fusarium species from cultivated Korean cucurbit plants, specifically watermelon and cucumber. Thirty-six Fusarium isolates from different regions of Korea were obtained from the National Institute of Horticulture and Herbal Science Germplasm collection. Each isolate was morphologically and molecularly identified using an internal transcribed spacer of ribosomal DNA, elongation factor-1α, and the beta-tubulin gene marker sequence. Fusarium species that infect the cucurbit plant family could be divided into three groups: Fusarium oxysporum (F. oxysporum), Fusarium solani (F. solani), and Fusarium equiseti (F. equieti). Among the 36 isolates examined, six were non-pathogenic (F. equiseti: 15-127, F. oxysporum: 14-129, 17-557, 17-559, 18-369, F. solani: 12-155), whereas 30 isolates were pathogenic. Five of the F. solani isolates (11-117, 14-130, 17-554, 17-555, 17-556) were found to be highly pathogenic to both watermelon and cucumber plants, posing a great threat to cucurbit production in Korea. The identification of several isolates of F. equiseti and F. oxysporum, which are both highly pathogenic to bottle gourd, may indicate waning resistance to Fusarium species infection.

• Korean Journal of Medicinal Crop Science
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• v.20 no.6
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• pp.421-433
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• 2012

This study was carried out to survey the vascular plants in 6 regions including around Hopo-Bridge of Yangsan region at waterfronts of Nakdong river, Korea. Distributed plants were surveyed from April to November, 2011. The vascular plants in 6 regions (around Mulgeum-chuisujang, Mulgeum-station, Jeungsan-ri, Hopo-bridge, Kumoh-bridge and lower part of Yangsan-stream) were total 135 taxa of 3 divisions, 4 classes, 37 orders, 66 families, 116 genera, 114 species, 2 subspecies and 19 varieties. The most number of species is Campanulales of 14.1% in Dicotyledoneae of 81.5% among total species. Regional distribution of species is mainly around Mulgeum-chuisujang and Jeungsan-ri as 61% among total species, and other regions is in 24 ~ 44%. Ecologically, there were herbaceous plants 75% and woody plants 25%, and 9 species of aquatic plants in herbaceous plants. Medicinal (herbal) plants included in KP (The Korean Pharmacopoeia) and KHP (The Korean Herbal Pharmacopoeia) were 56 species including Platycodon grandiflorum (Jacq.) A. De Candolle, Peucedanum japonicum Thunberg and etc., and folk herb plants were 14 species including Metaplexis japonica Makino, Commelina communis Linn$\acute{e}$ and etc. among total 135 species.

• Journal of People, Plants, and Environment
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• v.22 no.6
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• pp.551-561
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• 2019

This study was conducted to find out differences in the removal efficiency of particulate matter (PM) depending on the type of plants and the morphological characteristics of leaves. A total of 12 plants were used, with three plants selected for each type of leaves (big leaf, small leaf, compound leaf, needle leaf). We measured the removed amount of PM10 and PM2.5, the structure of the abaxial leaf surface, and the weight of the wax layer of each plant. Plants with the high removal efficiency of PM included Pachira aquatica Aubl., Ardisia crenata, and Dieffenbachia 'Marianne', and plants with the low removal efficiency included Nandina domestica Thunb, Schefflera arboricola, and Quercus dentata. The abaxial leaf surface having a high removal efficiency of PM had many large wrinkles, and the abaxial leaf surface having a medium removal efficiency was flat and smooth. On the other hand, there were many fine hairs on the abaxial leaf surface with a low removal efficiency. According to the plant leaf type, the PM10 removal efficiency of plants with needle leaves was about three times higher than that of other plants. In particular, the wax layer of conifers weighed 6-24 times higher than those of other plants. The stomata of conifers were evenly distributed on the adaxial and abaxial leaf surfaces; however, the stomata of Sciadopitys verticillata appeared in the form of papillae unlike general stomata. Therefore, the removal efficiency of PM varied depending on the macro-, and micro-morphological characteristics of plant leaves such as the structure of the abaxial leaf surface, and the weight of the wax layer. Based on this research, selecting plants that are effective in reducing PM in consideration of the plant type and leaf characteristics will improve indoor air quality and decrease exposure of PM to human body.

• 한국약용작물학회:학술대회논문집
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• 2012.05a
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• pp.137-138
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• 2012