• Journal of Korean Society of Forest Science
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• v.89 no.5
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• pp.585-590
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• 2000

The studies were carried out to know shade tolerance of the plants for the urban forest aromatic bath. The one to two year old potted seedlings were grown under the one of the five light conditions such as 100%, 50%, 30%, 10% and 2% of the full sun light intensities. Pinus densiflora S. et Z., P. sylvestriformis (Takenouchi) Chien., Thymus quinquecastatus Celak, Lonicera japonica Thunb, and Zingiber officinale Roscoe showed decreasing tendencies in height and root collar diameter growth, and dry mass production as the light intensity decreases. Exceptionally Thuja koraiensis Nakai showed the best growth in the 50% of full sun light intensity. Athyrium yokoscense (Fr. et Sab.) H. Christ showed better growth in the relative light intensity of 10 to 15% than in the in the relative light intensity of 25 to 30% in the bath green house.

• Korean Journal of Plant Resources
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• v.28 no.2
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• pp.217-234
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• 2015

The ethnobotanical study was conducted to record and conserve the traditional knowledge of botanical taxa in Jeju island, Korea from March to November, 2011. According to the survey results, derived from 1,774 sheets of 177 residents at 78 places, the ethnobotanical plants in Jeju island consisted of a total 356 taxa; 103 families, 260 genera, 312 species, 2 subspecies, 37 varieties and 5 form. The analysis of usage for 365 taxa showed that the medicinal use was the highest with 284 taxa, followed by edible with 145 taxa, ritual with 36 taxa, craft with 31 taxa and timber with 31 taxa respectively. The leaf of plant was the most useful part, followed by stem and whole plant. The most frequently mentioned taxon was Plantago asiatica (34 citations), followed by Artemisia princeps (32 citations) and Lonicera japonica (30 citations).

• Journal of Ecology and Environment
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• v.46 no.1
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• pp.62-75
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• 2022

Background: Pollinators help plants to reproduce and support economically valuable food for humans and entire ecosystems. However, declines of pollinators along with population growth and increasing agricultural activities hamper this mutual interaction. Nectar and pollen are the major reward for pollinators and flower morphology and volatiles mediate the specialized plant-pollinator interactions. Limited information is available on the volatile profiles attractive to honey bees and bumblebees. In this study we analyzed the volatile organic compounds of the flowers of 9 different plant species that are predominantly visited by honey bees and bumblebees. The chemical compositions of the volatiles were determined using a head space gas chromatography-mass spectrometry (GC-MS) method, designed to understand the plant-pollinator chemical interaction. Results: Results showed the monoterpene 1,3,6-octatriene, 3,7-dimethyl-, (E) (E-𝞫-ocimene) was the dominating compound in most flowers analyzed, e.g., in proportion of 60.3% in Lonicera japonica, 48.8% in Diospyros lotus, 38.4% Amorpha fruticosa and 23.7% in Robinia pseudoacacia. Ailanthus altissima exhibited other monoterpenes such as 3,7-dimethyl-1,6-octadien-3-ol (𝞫-linalool) (39.1%) and (5E)-3,5-dimethylocta-1,5,7-trien-3-ol (hotrienol) (32.1%) as predominant compounds. Nitrogen containing volatile organic compounds (VOCs) were occurring principally in Corydalis speciosa; 1H-pyrrole, 2,3-dimethyl- (50.0%) and pyrimidine, 2-methyl- (40.2%), and in Diospyros kaki; 1-triazene, 3,3-dimethyl-1-phenyl (40.5%). Ligustrum obtusifolium flower scent contains isopropoxycarbamic acid, ethyl ester (21.1%) and n-octane (13.4%) as major compounds. In Castanea crenata the preeminent compound is 1-phenylethanone (acetophenone) (46.7%). Conclusions: Olfactory cues are important for pollinators to locate their floral resources. Based on our results we conclude monoterpenes might be used as major chemical mediators attractive to both honey bees and bumblebees to their host flowers. However, the mode of action of these chemicals and possible synergistic effects for olfaction need further investigation.

• Korean Journal of Poultry Science
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• v.19 no.1
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• pp.27-34
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• 1992

Seventy-five commercial male day-old broiler chicks were used to investigate the effects of Oxytetracycline(OTC) and Lonicera japonica Thunberg(LJT) to be active in anti-bacteria and anti-virus on the growth rate, carcass rate and various intestinal organs sizes in broiler at 3 wk of age. Five experimental diets were formulated to have similar protein and energy levels, with OTC 0.04％ as low-level antibiotics and OTC 0.34％ as high-level antibiotics and 0.5％, 1.0％, 3.0％ level of LJT. Birds were housed randomly in 15 battery cages. Birds were 3 replicates per treatment and 5 chicks per replicate. In the body gain, 0.5％ level of LJT addition grew significantly higher than the other birds. The feed intake and feed efficiency were not significantly between other birds. The addition levels in OTC and LJT did not any consistent effect on the carcass rate. However, the chest meat percentage vs carcass volume in LJT 0.5％ treatment and the leg meat percentage vs carcass volume in DTC 0.04％ addition level were significantly higher than those of birds fed other diets. The liver weight rate was significantly higher in OTC 0.04％ level. However, the 0％ and LJT levels did not exert any consistent effect on the weights of gizzard, heart, bursa of fabricius, head and spleen of broilers. The abdominal and gizzard surrounding fat content rate was higher in bird LJT 1.0％ level than birds fed other levels.

• Korean Journal of Plant Resources
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• v.22 no.1
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• pp.13-25
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• 2009

This study was carried out to investigate the flora of Ssanggok valley, Chilsung-myeon, Geosan-gun and Chungcheongbuk-do, and the survey of period was from March, 2006 to June, 2007. The results of surveying the flora were recorded as 401 taxa; 88 families, 242 genera, 342 species, 52 varieties and 7 forma. The korean endemic plants were 8 taxa; Cephalotaxus harringtonia, Salix purpurea var. japonica, Asarum maculatum, Clematis trichotoma, Zanthoxylum schinifolium var. inermis, Lonicera subsessilis, Weigela subsessilis and Saussurea seoulensis. The endangered plant designate by the ministry of environment was Berchemia berchemiaefolia. The rare plants designated by Korea forest service were 7 taxa; Crypsinus hastatus, Asarum maculatum, Paeonia japonica, Berchemia berchemiaefolia, Viola albida, Rhododendron micranthum and Lilium distichum. In future, we will discuss a concrete conservation plan and propagation method about rare plants for conservation. The plant resources were 220 taxa of ornamental plant, 239 taxa of edible plant, 281 taxa of medicinal plant and 206 taxa of others. The naturalized plants were 13 taxa; Dactylis glmerata, Rumex crispus, Chenopodium glaucum, Robinia pseudo-acacia, Trifolium pratense, Trifolium repens, Oenothera lamarckiana, Aster subulatus, Erechtites hieracifolia, Erigeron annuus, Erigeron canadensis, Helianthus tuberosus and Taraxacum officinale. The naturalized index and Urbanized index were about 3.24% and 4.53%.

• Korean Journal of Environment and Ecology
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• v.21 no.1
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• pp.38-46
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• 2007

The vascular plants of the Moaksan provincial park area were listed as 615 taxa: 120 families, 383 genera, 542 species, 1 subspecies, 69 varieties and 3 forms. Based on the list of Korean endemic plants, 6 taxa were recorded: Cephalotaxus koreana, Carex okamotoi, Lilium amabile, Salix purpurea var. japonica, Weigela subsessilis, Aster koraiensis and based on the list of the rare plants by the Forest Research Institute, 5 taxa were recorded in the studied areas: Lilium distichum (Preservation priority order; No. 159), Tricyrtis dilatata (No. 97), Iris ensata var. spontanea (No. 197), Aristolochia contorta (No.151), Viola albida (No. 202). Specific plant species by floral region were a total of 48 taxa; Prunus yedoensis in Class V, 2 taxa, as Carex arenicola, Wistaria floribunda in Class IV, 4 taxa, Spiraea salicifolia, Thea sinensis, Asperula lasiantha, etc. in Class III, 8 taxa, as Lilium distichum, Iris ensata var. spontanea, Acer triflorum, etc. in Class II, 33 taxa, as Camptosorus sibiricus, Orixa japonica, Lonicera praeflorens, etc. in Class I. The naturalized plants in this site were 16 families, 40 genera, 48 species, 2 varieties, 50 taxa and the naturalization rate was 8.1% of all 615 taxa vascular plants. As a conservation measure, there needs to be controls on the imprudent development and excessive visitors and a detailed plan like nature the rest of the year.

• Korean Journal of Plant Resources
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• v.20 no.5
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• pp.451-460
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• 2007

This study was carried out to construct the data base for biodiversity conservation, and offer the raw data for obtaining the genetic resources. The vascular plants were summarized as 306 taxa; 79 families, 199 genera, 266 species, 35 varieties and 5 forma. The Korean endemic plants were 7 taxa; Salix caprea, S. purpurea var. japonica, Deuitzia coreana, Akebia quinata var. plyphylla, Spiraea prunifolia for. simpiciflora, Lonicera subsessilis and Weigela subsessilis. The naturalized plants were 16 taxa; Dactylis glomerata, Rumex acetocella, R. crispus, Phytolacca esculenta, Tlaspi arvense, Robinia pseudo-acacia, Trifolium repens, Ailanthus altissima, Oenothera lamarckiana, Veronica persica, Ambrosia artemisiifolia var. elatior, Erigeron annuus, Erigeron canadensis, Bidens frondosa, Taraxacum officinale and Sonchus asper. The specific plants by floristic region were 26 taxa; Chloranthus japonica, Populus davidiana, and so forth.

• Korean journal of applied entomology
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• v.52 no.3
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• pp.185-191
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• 2013

The damage of citrus by Scirtothrips dorsalis Hood appears to have increased since 2007 in Jeju, although the characteristics of seasonal abundance are not clear. This study was conducted to investigate the relationship between host plants and the seasonal abundance of S. dorsalis, observing plants distributed around citrus orchards. The host plants of S. dorsalis surrounding citrus orchards were determined to include 32 families, 54 species: 39 woody plant species and 15 herbaceous plant species. The host plants which related to the occurrence of 1st generation of S. dorsalis were Lonicera japonica, Clematis apiifolia, Hedera rhombea, and Viburnum awabuki. The occurrence of 1st generation S. dorsalis was estimated to be due to overwintered female adults having laid eggs into those plants from late March to early April, and the new adults having emerged from late April to late May. The host plants which were associated with fruit damage of citrus were Mallotus japonicus, and Camellia japonica, as well as creeping plants such as Clematis apiifolia, Paederia scandens and Cayratia japonica. The adult phase density of S. dorsalis caught on yellow-color sticky traps placed on the citrus trees on the edge of the citrus orchard. S. dorsalis were predominantly 3rd generation from late of June to early of July, and 6th generation from late of August to early of September, and their numbers were directly related to the degree of damage caused to the citrus fruit. The density of S. dorsalis depended on the number of new growing shoots of host plants, which indicated that the immigration of adults of S. dorsalis to the citrus was based in the suitability of host plants surrounding the orchards.

• Journal of Practical Agriculture & Fisheries Research
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• v.24 no.4
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• pp.18-29
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• 2022

Five species of plants (Clerodendrum trichotomum Thunb., Angelica dahurica (Fisch. ex Hoffm.) Benth. & Hook. f. ex Franch. & Sav., Caryopteris incana (Thunb. ex Houtt.) Miq., Lonicera japonica Thunb., and Parasenecio auriculatus var. matsumurana Nakai) native to the clean area of Mt. Jiri were selected. The collection period was from May to September 2021, and the five species plants were collected in their native habitats with flowers in full bloom. The collected plants were extracted with 70% EtOH, and 17 kinds of polyphenol components were analyzed. Next, flowers, leaves, stems, and roots were separated from plants, extracted with 70% EtOH for each part and experiments were conducted on DPPH, ABTS, total polyphenols, and total flavonoids. The results are as follows. 1. It was found that there were a total of 8 kinds of polyphenols contained in 5 species of plants that are native to Mt. Jiri. Among the polyphenol components, chlorogenic acid was contained in 4 species of plants, and caffeic acid was contained in 2 species of plants. 2. As a result, the DPPH radical scavenging activity was the best in the stem of P. auriculata and the C. trichotomum was good regardless of the specific part. It was found that the activity-scavenging activity was good in the flowers of A. dahurica and the leaves of L. japonica. 3. The highest ABTS radical scavenging activity was C. trichotomum Thunb., whose EC₅₀ value was 38.73~66.28ppm. Next, the leaves and stems of L. japonica Thunb., A. dahurica and P. auriculata, and the leaves and stems of C. incana appeared in that order. 4. The highest total polyphenol content was 154.83mg GAE/g in the leaves of C. trichotomum, followed by about 130mg GAE/g in the flowers of C. trichotomum and P. auriculata. The lowest was 26.27mg GAE/g in the stems of A. dahurica.

• Journal of the Korean Society of Food Science and Nutrition
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• v.44 no.4
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• pp.497-505
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• 2015

Traditional herbs, such as Lonicera japonica, Arctii Fructus, and Scutellariae Radix have been used as traditional drug due to their anti-inflammatory and anti-oxidant activities. The aim of this study was to investigate the anti-inflammatory effects of extract mixture (YG-1) in a model of lipopolysaccharide (LPS)-induced acute inflammation in both macrophage (RAW 264.7) cells and Sprague-Dawley rats. YG-1 did not show specific cellular toxicity in RAW 264.7 cells until a concentration of $100{\mu}g/mL$. YG-1 reduced various markers related to inflammation such as IL-$1{\beta}$, COX-2, and iNOS caused by LPS in RAW 264.7 cells. Consistent with these results, YG-1 exerted significant anti-inflammatory effects in an acute inflammation rat model. Acute fever and high concentration of IL-$1{\beta}$ in serum induced by LPS were significantly reduced by YG-1. These results were similar to flubiprofen, a commercial anti-inflammatory and anti-febrile drug. Therefore, these results indicate that YG-1 has beneficial effects on LPS-induced acute inflammation and suggest that YG-1 can serve as an effective anti-inflammatory and anti-febrile drug.