• Journal of the Korean Society of Food Science and Nutrition
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• v.39 no.9
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• pp.1249-1256
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• 2010

Forty natural plants collected in Jeju, Jeonnam-Goheung, and Gyeongbuk-Ulleung were extracted using a pressurized liquid. Extraction yields of total soluble solids and total phenolics (TP), and integral antioxidative capacity (IAC) were measured, and antimicrobial activity was tested against Streptococcus parauberis, Streptococcus iniae, Edwardsiella tarda, and Vibrio ordalii. Jipsinnamul showed the highest content of TP (174.4 mg GAE/g), followed by Mulchamnamu (116.9), Seoeonamu (113.3), and Buknamu (108.2). Percent TP/TSS was high in Jipsinnamul (72.6%), Seoeonamu (47.3%), Mulchamnamu (46.4%), Jageumu (40.2%), and Baneulkkot (40.1%), respectively. Magamok, Nadosongipul, Buknamu, Mulchamnamu, and Seoeonamu showed 5.81, 3.96, 3.63, 3.63, and 3.34 mmol ascorbic acid equivalents/g of IAC of water-soluble substances, and Seoeonamu, Magamok, Seipijilpul, Mulchamnamu, Baneulkkot, and Seomgirincho showed 8.51, 6.57, 5.68, 3.85, 3.83, and 3.69 mmol Trolox equivalents/g of IAC of lipid-soluble substances, respectively. Only nine species such as Baneulkkot, Dokhwal, Jipsinnamul, Mulchamnamu, Nadosongipul, Seipijilpul, Seoeonamu, Seomgirincho, and Sumbadi of 40 selected plants showed the antimicrobial activity against four bacteria tested. Jipsinnamul showed the strong antimicrobial activity against S. iniae, while Dokhwal, Nadosongipul, and Sumbadi against S. parauberis and S. iniae, and Mulchamnamu, Seoeonamu, and Seipijilpul against V. ordalii.

• Applied Microscopy
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• v.32 no.4
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• pp.345-360
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• 2002

Pollen morphology of four genera, 22 species of Korean Crassulaceae has been examined with light and scanning electron microscopy. The presence/absence of the aperture margo and granules was useful characters to clarify the generic boundaries, and the shapes of the streate were significant to delineate taxonomic relationships within the genus Sedum. The pollen grains of Korean Crassulaceae were small and medium in size. Hylotelephium viviparum has the smallest pollen grains, and H. viridescens the largest. The pollen grains are tricolporate, circular in polar view and were prolate to prolate-spheroidal in equatorial shape. Korean Crassulaceae species have striate grains. The close pollen morphological relationships among Hylotelephium, Meterostachys and Orostachys species were concordant to the results based on the previous molecular and morphological studies. The results of the clustering analysis using pollen characters support the segregation of Sedum sensu lato which has been proposed by the previous authors. Within the genus Sedum, S. kamtschatium is closely related to S. middendorffianum with granules on the surface of the pollen grains. Sedum polytrichoides, a member of the Sedum, was clustered to the species of the Meterostachys, Hylotelephium and Orostachys, and needs to reexamine the taxonomic status. O. malacophyllus collected at Chungdong-Jin was significantly differ from the same species from Gampo in pollen and morphological characters.

• Korean Journal of Environment and Ecology
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• v.18 no.2
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• pp.221-230
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• 2004

Flora of the Dokdo Islet, where located south-east from Ulnung Island, off the east coast of the Korean peninsula, recorded as 59 taxa; 29 families, 50 genus, 48 species, 1 sub-species, 9 varieties and 1 form. Dong-do (East islet) of Dokdo Islet, naturalized plants such as Brassica campestris subsp. napus var. nipp-oleitera and Rumex crispus are widely ranged over the islet. The naturalizedplants affects the native species and their habitats of Artemisia japonica var. macrocephala, Echinochloa crus-galli, Sedum oryzifolium, Arabis stelleri var. japonica and Sedum kamtschaticum var takesimense in the islet. The trail in Seo-do (West islet) is heavily threatened by over-all weathering processes on the rock. The native woody species in the islet are Euonymous japonicus and Lonicera insularis, and the species such as Pinus thunbergii and Hibiscus syriacus are planted in the recent past under the IRP (Islet Restoration Program) by NGO. The Specific Plants, which is designated and categorized by the Ministry of Environment, Korea, such as Lilium lancifolium, Lysimachia mauritiana and Reynoutria sachalinensis are ranged. The ecosystem of Dokdo islet is seriously threatened by invadedplant species and building works for garrison and relevant facilities. The over-all long- and short-term strategies, based on interdisciplinary and integrated approaches for habitat restoration is needed.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.4 no.4
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• pp.19-24
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• 2001

14 kinds of perennial flower sods, including 10 Korean native wild perennial flowers such as Lychnis cognata, Achillea sibirica, Sedum spectabile, Sedum takesimense etc. were made with basal sheets of nonwoven fabric or jute fabric. Growth of plants planted on bark was better than that of planted on soil of open area. The plants planted on bark also showed difference in growth rate by the kinds of used basal sheets. In general, the growth of plants was good when nonwoven fabric was used as basal sheet instead of jute fabric. When jute fabric was used as basal sheet, It was severely decayed during growth period resulting in great decreasing of root sticking capacity to basal sheet. It was shown that the procumbent plants such as Tymus quinquecostatus, Ixeris stolonifera, Sedum oryzifolium, Sedum polystichoides having lower plant height and better ground coverage ability compared with upright plants such as Sedum spectabile and Aster glehni were more suitable for floral sod production.

• Korean Journal of Environment and Ecology
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• v.24 no.3
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• pp.264-278
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• 2010

This study was carried out to describe the basic materials of the flora and vegetation for the conservation and management of the Dokdo ecosystem. The vegetation types were investigated by physionomy. 53 taxa of vascular plants were found, including 29 families, 48 genera, 49 species, 1subspecies, and 3 varieties. Among the investigated 53 taxa, it was recorded as follows: 2 Korean endemic plants included Sedum kamtschaticum var. takesimense M.Park and Campanula takesimana Nakai and 6 naturalized plants included Brassica juncea (L.) Czern., Sonchus oleraceus L., Bromus catharticus Vahl, Lepidium virginicumL., Chenopodium album L., and Ipomoea purpurea Roth. In particular, common morning glory (Ipomoea purpurea Roth) was reported for the first time in this survey of Dokdo. Based on physionomy, the main plant communities of Dokdo Island were Aster spathulifolius-Sedum oryzifolium community, Aster spathulifolius-Artemisia Japonica subsp. littoricola community, Fallopia sachalinensis-Cyrtomium falcatum community, Echinochloa crusgalli community, Echinochloa crusgalli var. oryzicola community. The debates have been continuing about a mis-identification of plants. To avoid this debate and manage naturalized and cultivated plants, taxonomist surveys and continual monitoring for the Island are required.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.54 no.4
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• pp.552-560
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• 2021

This study investigated anti-inflammatory and antibacterial activities of Sedum takesimense ethanolic extract, and 3 isolated compounds. To confirm anti-inflammatory and anti-acne activities, a nitric oxide (NO) inhibition assay, pro-inflammatory factor (TNF-α, IL-1β, and IL-8) inhibition assays, and minimum inhibitory concentration (MIC) tests were performed. The 3 isolated compounds were identified as 4,6-di-O-galloylarbutin (OGA), 2,4,6-tri-O-galloyl-glucose (OGG), and 1,2,4,6-tetra-O-galloyl-β-glucose (TOGG). The ethanolic extract and isolated compounds (OGA, OGG, TOGG) effectively inhibited production of NO and pro-inflammatory cytokines (TNF-α, IL-1β, and IL-8). Furthermore, OGG and TOGG exhibited MIC values toward Cutibacterium acnes of 12.5 ㎍/mL and 3.2 ㎍/mL, respectively. These results suggest that S. takesimense extract exerts an anti-inflammatory effect on LPS-induced RAW264.7 cells, and an antibacterial efficacy against C. acnes.

• Korean Journal of Environmental Biology
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• v.39 no.2
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• pp.245-257
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• 2021

Ulleungdo, a volcanic island, has different climate, soil, and topography characteristics from inland of the Korean Peninsula. Its agriculture also exhibits distinctive features. This study focused on floristic compositions and characteristics of crop lands in Ulleungdo. Flora surveys were conducted for 37 areas three times, one in May of 2016, one in July of 2020, and one in August of 2020. Results showed that vascular plants of crop lands in Ulleungdo included 186 taxa of 53 families, 132 genera, 160 species, 14 varieties, five subspecies, and five hybrids. Asteraceae had the most diverse species (33 taxa), followed by Poaceae (25 taxa), Fabaceae (12 taxa), Polygonaceae (11 taxa), and Liliaceae (nine taxa). The biological type of crop lands in Ulleungdo island was determined to be Th-R₅-D₄-e type. Rare plants were found for nine taxa: Athyrium acutipinnulum Kodama ex Nakai, Sedum takasimense Nakai, Rubus takesimensis Nakai, Dystaenia takesimana (Nakai) Kitag., Ligustrum foliosum Nakai, Aster pseudoglehni Y.Lim, Cirsium nipponicum (Maxim.) Makino, Lilium hansonii Leichtlin ex D.D.T.Moore, and Polygonatum robustum (Korsh.) Nakai. In addition, 45 taxa contained naturalized plants of 13 families, 33 genera, 44 species, and one variety. Urbanization and naturalization indices were 13.9%, and 24.2%, respectively.

• Korean Journal of Medicinal Crop Science
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• v.24 no.3
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• pp.228-236
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• 2016

Background: Sedum takesimense Nakai has been used as folk medicine in Korea. The present study aimed to determine the biological activity of S. takesimense by investigating the anti-inflammatory effects of S. takesimense water extract (SKLC) on the lipopolysaccharide-induced inflammatory response in RAW 264.7 cells. Methods and Results: Cytotoxicity of SKLC on RAW 264.7 cells was determinded by performing MTS assay was found to have no cytotoxic effect on RAW 264.7 cells at a concentration range of $62-500{\mu}g/m{\ell}$. Further, pretreatment of SKLC inhibited lipopolysaccharide-induced nitric oxide (NO) production in a dose-dependent manner. To determined the inhibitory mechanisms of SKLC on inflammatory mediators, we assessed the inducible nitric oxide synthase (iNOS) and cyclooxygnease-2 (COX-2) pathways. The activities of these pathways were decreased in a dose-dependent manner by SKLC. The production of tumor necrosis factor-${\alpha}$ (TNF-${\alpha}$), interleukin $(IL)-1{\beta}$, and IL-6 were also reduced. Conclusions: These results suggest that the down regulation of iNOS, COX-2, TNF-${\alpha}$, IL-$1{\beta}$, and IL-6 expression by SKLC are mediated by the down regulation of nuclear factor-${\kappa}B$ (NF-${\kappa}B$) activity, a transcription factor necessary for pro-inflammatory mediators. This might be the mechanism underlying the anti-inflammatory effects of SKLC.