• Journal of Microbiology and Biotechnology
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• 제21권6호
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• pp.582-589
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• 2011

Bioconversion of timosaponin A-III (TA-III), one of the major steroidal saponins isolated from the rhizomes of Anemarrhenae asphodeloides Bunge (Liliaceae), was investigated in Saccharomyces cerevisiae. Five bioconversion products, denoted compounds 2-6, were obtained. Biotransformation metabolite 2 was a stereoisomer of TAIII with a specific isotype F-ring and ${\beta}$-ranged $CH_3$-21, which rarely occurs in nature. The structure of 2 was elucidated by extensive spectroscopic analysis (H-H COSY, HSQC, HMBC), as well as by high-resolution mass spectral analysis. The growth inhibitory activity of compounds 1-6 was assayed against four human cancer cell lines, HepG2, H-1299, HT-29, and HCT-116. Compounds 1 and 2 obviously inhibited the growth of the four types of cancer cells with $IC_{50}$ values being less than 19${\mu}M$. A structure-activity relationship is discussed, and the spirostane-ring F in compounds 1 and 2 appears to be the critical bioactive moiety for the cell growth inhibitory property.

• 한국자원식물학회지
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• 제6권2호
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• pp.99-124
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• 1993

Plant in chollabuk-do have investded 105 family, 442 species. 2. The order of distribution of the most family was the Compositae 43, Leguminosae Gramineae each 28, Rosaceae 17, Liliaceas 22, Labiatae 17, Ranunculaceae 12, Betulaceae 11, Violaceae 10, Polygonaceae Aspidiaceae each 9, Cruciferae${\cdot}$Caryothyllaceae${\cdot}$Celastraceae each 8, Fagaceae, Rubiaceae each 6, Ulmaceae 5. 3. Medical plants have invested 56 family, 116 species. 4. The order of the most family was the Compositae 8, Liliaceae Rosaceae${\cdot}$Umbelliferae${\cdot}$Labiatae each 6, Leguminosae${\cdot}$Rutaceae each 5, Campanulaceae${\cdot}$Ranunculaceae each 3, Simaroubaceae${\cdot}$Euphorbiaceae${\cdot}$Araliaceae each 2, Scrophulariaceae${\cdot}$Plantaginaceae each 1.

• 한국식품영양과학회지
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• 제22권3호
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• pp.313-316
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• 1993

파 지하부로부터 분리된 2종의 diosgenin 배당체의 구조를 그의 분광학적 data와 화학적 실험 등의 방법으로 결정하였다. 그 결과, 이 두화합물의 구조는 diosgenin 3-O-$\alpha$-L-rhamnopyranosyl (1$\longrightarrow$2)-[$\alpha$-L-rhamnopyranosyl (1$\longrightarrow$4)]-$\beta$-D-glucopyranoside (1, dioscin)과 diosgenin 3-O-$\alpha$-L-rhamnopyranosyl (1$\longrightarrow$4)-$\alpha$-L-rhamnopyranosyl (1$\longrightarrow$4)]- [$\alpha$-L-rhamnopyranosyl (1$\longrightarrow$2]-$\beta$-D-glucopyranoside (2, saponin P-d)로서 기지 물질이나, saponin P-d를 부분가수분해하여 얻은 prosapogenin 중 compound 4는 문헌 미기재의 물질이다.

• Journal of Plant Biology
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• 제37권2호
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• pp.141-149
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• 1994

Levels of genetic diversity, population genetic structure, and gene flow in Hosta yingeri, a herbaceous perennial endemic to Taehuksan, Sohuksan, and Hong Islands, were investigated. Starch gel electrophoresis was conducted on leaves for 101 plants collected from three populations. Although the distribution of thespecies is restricted in the islands, it maintains high levels of genetic variatin; 64% of polymorphic loci in at least one population (Ps), the mean number of alleles per locus (Ap) of 1.92, and the mean effective number of alleles per locus (Aep) of 1.52. Overall, mean genetic diversity (Hep=0.250) was substantially higher than mean estimate for species with very similarlife history traits (0.102). Large populaton size, the persistence of multiple generations within populations, high fecundity, predominantly outcrossing breeding system, large size of pollinator visitation areas may be explanatory factors contributing the higher level of genetic diversity maintained within populations. Analysis of fixation indices showed an overall slight excess of heterozygotes (mean FIS=-0.066) relative to Hardy-Weinberg expectations, which may in part be due to the near self-incompatible breeding system in the species. Significant differences in allele frequencies among populaitns were found for 14 out of 16 polymorphic loci (P<0.05). Slightly more than 80% of the total variation in the species was common to all populations (GST=0.198). As expected, indirect estimate of the number of migrants per generation (Nm=0.45, calculated from mean GST) and nine private alleles found in the three populations indicate that gene movement among three isolated island populations was low.

• Journal of Plant Biology
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• 제39권2호
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• pp.149-159
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• 1996

The order of Rhododendro-Quercetalia mongolicae representing temperate oak forests in Korea was characterized in terms of presence of taxa of different rank. 140 releves were analysed for percentage contribution of each species, genera and families in syntaxa under consideration as well as extracton of diagnostic genera and families for syntaxa by an ordination technique. The Rhododendro-Quercetalia is characterized by high diversity of tree and shrub species contributing 40% of the total floristic composition as well as by a high contribution of the genus Rhododendron and the absence of the genus Fagus, characteristic of the QuercoFagetea sensu lato. The character families for the Rhododendron and Quercus include Liliaceae and Compositae, whereas Acer, Carex, Viola, Rhododendron and Quercus are the most common among genera. Rhododendron and Quercus are regarded as the transgressive cheractergenera, whereas the families of Pinaceae and Ericaceae are considered companions (in sense of the terminology of the Braun-Blanquet syntaxonomy) for the order. Family appeared to be an inadequate rank for diagnoses of alliances and suballiances. On the other hand, genus was found to be the most effective rank in differentiating the alliances and suballiances. The Lindero-Quercenion shares the same character-genera with the order Rhododendro-Quercetalia. Character genera of the suballiances Callicarpo-quercenion are Carpinus, Styrax, Smilax and Callicarpa, and those of the Pino-Quercion list Euonymus, Saussurea and Tilia.

• 한국자원식물학회지
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• 제1권1호
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• pp.53-71
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• 1988

전남지역의 명산중의 하나인 백운산 지역에 분포되어 있는 한약자원 식물을 수집 및 분류하여 약용작물로 재배하기 위한 기초자료로 활용하고자 이 지역의 한약자원 식물의 분포를 조사한 결과는 다음과 같았다. 1. 백운산에 분포되어 잇는 약용자원은 60과 250종으로 분류되었다. 2. 분포수종중 과본류는 161 종 목본류 89종이 분포되어 있었다. 3.과본류는 사삼, 도라지, 쑥, 엉겅퀴, 질경이, 차조기, 쇠무릎, 반하, 하수오, 결명자, 용담초, 맥문동, 하고초, 둥글레, 참마, 칡 등이 많이 분포되어 있었고, 목본류로는 굴피나무, 가래나무, 호두나무, 후피향나무, 모란, 이팝나무, 쥐똥나무, 누리장나무, 고로쇠나무, 비자나무, 삼나모, 때죽나무, 모과나무 등이 한약재료로 많이 사용되는 것들이었다.

• 한국자원식물학회지
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• 제1권1호
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• pp.23-32
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• 1988

전남지역에서 3대 명산중의 하나인 모후산 지역에 분포되어 있는 한약자원식물을 수집 및 분류하여 약용작물로 재배하기 위한 기초자료로 활용하고자 이 지역의 한약자원 식물의 분류를 조사한 결과는 다음과 같았다. $\bullet$ 모후산에 분포되어 있는 한약자원 식물은 58과 230종으로 분류되었다. $\bullet$ 분류수종중 초본류는 질경이, 차조기, 쇠무릎, 우엉, 사삼, 반하, 하수오, 결명자, 용담초, 맥문동, 하고초, 산삼, 도라지, 둥글레, 참마, 칡, 대계등 17종과 대본류는 인동초, 참으아리, 방기, 목퉁, 엄나무, 구기자, 산수유, 밤나무, 매화, 인진호, 희첨, 지유, 초오등 13종이 한약재료로 많이 사용되는 것들이었다.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2018년도 추계학술대회
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• pp.63-63
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• 2018

Ethnobotanical knowledge on native plants is critical on the conservation and management of biological resources. We investigated traditional knowledge of ethnobotanical uses in the Mt. Gayasan National Park area. Interviews were carried out to 189 residents at 176 places, and verified species and usage information was categorized by taxonomic groups, usage, and used parts. The ethnobotanical species of the regions consisted of a total of 275 taxa in 91 families including 105 cultivars. Sunflower family (Asteraceae) is the most widely used family with 30 taxa (7 cultivars). Rose family (Rosaceae, 25 taxa with 11 cultivars), Bean family (Fabaceae, 15 taxa with 11 cultivars), Grass family (Poaceae, 15 taxa with 10 cultivars), and Lily family (Liliaceae, 14 taxa with 4 cultivars) followed. About 50 taxa belong to the Approved Species for Delivering Overseas designated by Korea Ministry of Environment, and six Korean endemic taxa have been traditionally valuable in the regions. Many cultivated species have been utilized for various purposes accompanied local and native plants. The main usage of the plants are edible (175 taxa) and medicinal (168 taxa). Leaves are most commonly used parts (105 taxa), followed by stems (93 taxa), fruits (73 taxa), roots (55 taxa), and wholes (54 taxa). The study does not only provides examples of traditional uses of native plants, but also facilitates conservation of natural resources and sustainable developments of ethnobotanical knowledge for the contemporary human society.

• 식물분류학회지
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• 제46권3호
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• pp.306-313
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• 2016

전북 진안군 금강변에서 비비추속의 신변종인 금강비비추(Hosta clausa Nakai var. geumgangensis M. Kim & H. Jo)를 새로이 발견하여 기재하였다. 금강비비추는 근경에 기는 줄기가 있고, 종주선이 화경에 없으며, 약은 자색이라는 점에서 비비추 H. clausa var. normalis나 참비비추 H. clausa var. clausa와 유사하다. 그러나 금강비비추는 개방화이고, 종자 결실을 하지 않으며, 엽병이 녹색이며, 암술과 수술의 길이가 비슷하고, 화피 협통부는 길이가 짧다. 반면에, 비비추는 개방화이고, 종자 결실을 하며, 엽병은 자색 반점이 있으며, 암술은 수술보다 길고, 화피 협통부는 길이가 길다. 또한 참비비추는 꽃의 화피가 전혀 열리지 않는 폐쇄화이고 종자를 맺지 못한다.

• 생약학회지
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• 제48권4호
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• pp.314-319
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• 2017

To evaluate the longevity property of Allium hookeri (Liliaceae) leaves, this study was performed. Ethanol extract of A. hookeri was successively partitioned as methylene chloride, ethyl acetate, n-butanol and $H_2O$ soluble fractions, and lifespan-extending effects of the fractions were checked using Caenorhabditis elegans model system. The most active ethyl acetate-soluble fraction elevated heat stress tolerance, and increased expression of stress resistance protein. Further studies were performed to investigate several aging-related factors such as reproduction, food intake, growth and movement of C. elegans. The results revealed that there were no significant changes in aging-related factors including reproduction and food intake, however, ethyl acetate-soluble fraction treatment led to up-regulation of locomotory ability and growth of aged worms, suggesting ethyl acetate-soluble fraction affected healthspan as well as lifespan of nematode.