• Title/Summary/Keyword: Euphorbia ebracteolata

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Pharmacognostical Study on the Euphorbia ebracteolata(I) -On the Flavonoidal Constituents- (Euphorbia ebracteolata에 대한 생약학적 연구(I) -Euphorbia ebracteolata의 Flavonoid 성분-)

  • Lee, Sang-Cheol;Ahn, Beung-Tae;Park, Woong-Yang;Lee, Seung-Ho;Ro, Jai-Seup;Lee, Kyong-Soon;Ryu, Eung-Kul
    • Korean Journal of Pharmacognosy
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    • v.23 no.3
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    • pp.126-131
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    • 1992
  • Four flavonoids were isolated from the aerial parts of Euphorbia ebracteolata. On the basis of chemical and spectroscopic evidence, the structures of these compounds were established as $quercetin-3-O-{\beta}-D-glucoside$(isoquercitrin)(I), quercetin-3-O-rutinoside(rutin)(II), kaempferol-3-O-rutinoside(III) and $quercetin-3-O-(2'-O-galloyl)-{\beta}-D-glucoside$(IV) which was the main flavonoidal component in this plant. The isolation of flavonoids from E. ebracteolata is the first example.

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Phenolic Compounds from Euphorbia ebracteolata (붉은대극의 페놀성 화합물)

  • Ahn, Byung-Tae;Lee, Kyong-Soon
    • Korean Journal of Pharmacognosy
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    • v.27 no.2
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    • pp.136-141
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    • 1996
  • We have previously reported the isolation of nine hydrolisable tannins and five flavonoids from the aerial parts of Euphorbia ebracteolata. Further investigation about the same plant has led to the isolation of 5-O-caffeoyl quinic acid, kaempferol $3-O-(2'-O-galloyl-{\beta}-_D-glucoside)$ and euphorbin A.

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Taxonomic Re-examination on Euphorbia ebracteolata Hayata (희귀생약 붉은대극(Euphorbia ebracteolata Hayata)에 대한 분류학적 재검토)

  • Ahn, Byung-Tae;Kim, Jae-Gil;Ro, Jae-Seup;Yook, Chang-Soo;Lee, Kyong-Soon
    • Korean Journal of Pharmacognosy
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    • v.27 no.2
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    • pp.129-135
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    • 1996
  • Euphorbia ebracteolata Hayata is a perennial herb of Euphorbiaceae that has a cyathumal inflorescence, the glands of the involucres are rounded-cordate and reddish, stems are erect, thick and 40-50 cm high. The leaves are alternate and rather numerous. So far this plant has been known as a unreported species in Korea. However, as the result of this study, this plant was found to be widely distributed in Korea over eight habitats, i.e. Keunduk, Dokye and Kaliwangsan, Kangwon-do: Dunduksan, Kyongsangbuk-do: Okcheon, Chungcheongbuk-do: Manduksan, Baekyangsan and Naejangsan, Jeolanam-do. On the other hand, its variety, E. ebracteolata var. coreana Hurusawa which grows only in Poong-do, Kyongki-do was reviewed by comparative morphology and chemotaxonomy to be resulted in the same species, E. ebracteolata.

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Genetic variation and differentiation among populations of Euphorbia ebracteolata (Euphorbiaceae) in Korea (한국산 붉은대극(대극과) 집단의 유전적 변이와 분화)

  • Cho, Young-Woo;Park, Ki-Ryong
    • Korean Journal of Plant Taxonomy
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    • v.45 no.1
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    • pp.1-7
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    • 2015
  • Using starch gel electrophoresis, ten isozyme loci were examined in nine populations of Euphorbia ebracteolata in Korea. Populations of E. ebracteolata tend to have higher within-population levels of genetic variation (A = 2.2, P = 61.1, He = 0.165) along with low levels of genetic differentiation ($F_{ST}$ = 0.075) compared to previously reported Euphorbia species. The relatively high genetic variation in E. ebracteolata may be due to its long-lived regional distribution and to the outcrossed nature of the species. Low levels of genetic differentiation and the absence of unique alleles in E. ebracteolata populations suggest that Korean populations diverged recently. This study does not support the recognition of var. coreana and for. magna as separate taxa, and suggests that they should be combined with E. ebracteolata.

Pharmacognostical Study on Euphorbia ebracteolata(II) -On the chemical study of the tannins and related compounds- (Euphorbia ebracteolata에 대한 생약학적 연구(II) -Tannin 및 관련화합물에 관한 화학적 연구-)

  • Ahan, Beung-Tae;Lee, Sang-Cheol;Park, Woong-Yang;Lee, Seung-Ho;Ro, Jai-Seup;Lee, Kyong-Soon;Ryu, Eung-Kul
    • Korean Journal of Pharmacognosy
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    • v.23 no.4
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    • pp.211-217
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    • 1992
  • Seven hydrolysable tannins and two related compounds have been isolated from the acetone-water(4 : 1) soluble portion of the aerial parts of Euphorbia ebracteolata(Euphorbiaceae). Seven hydrolysable tannins have been determined as 3-O-galloyl-shikimic acid, 1, 3, 4, 6-tetra-O- and $1,\;2,\;3,\;4,\;6-penta-O-galloyl-{\beta}-D-glucose$, corilagin, tercatain, punicafolin and geraniin and two related compounds determinedasgallicacidandellagicacidonthebasisof spectral data and physico-chemical evidence.

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Environment and Ecological Characteristics in Euphorbia ebracteolata Hayata Flora (붉은대극의 자생지 환경과 생태적 특성)

  • Ahn, Byung-Tae;Kim, Jae-Gil;Ro, Jai-Seup;Park, In-Keun;Lee, Kyong-Soon
    • Korean Journal of Medicinal Crop Science
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    • v.5 no.1
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    • pp.28-35
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    • 1997
  • Biosystematic study on Euphorbia ebracteolata Hayata was carried out by comparing ecology and morphology between wild and cultivated ones. As the result of this study, cultivation method about this medicinal plant was established, and ecologically, the shape of leaf or root of this plant appeared to be dependent on ecological environment while the hair of ovary and the involucel were considered to be fixed characters. From the investigation of natural conditions of habitats, this plant was considered to be a facultive sciofytes and a day neutral plant.

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Cytotaxonomic study of Korean Euphorbia L. (Euphorbiaceae) (한국산 대극속(Euphorbia L., Euphorbiaceae)의 세포분류학적 연구)

  • Chung, Gyu Young;Oh, Byoung-Un;Park, Ki-Ryong;Kim, Joo-Hwan;Kim, Mi Suk;Nam, Gi-Heum;Jang, Chang-Gee
    • Korean Journal of Plant Taxonomy
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    • v.33 no.3
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    • pp.279-293
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    • 2003
  • Somatic chromosomes about 13 taxa of Korean Euphorbia L. was investigated to estimate its taxonomic significance. Somatic chromosome numbers of treated taxa were 2n= 12, 20, 22, 28, 40, 42, 56, therefore basic chromosome numbers of those were x=6, 7, 10, 11. The chromosome numbers of E. pallasii Turcz. (2n=20), E. hylonoma Hand.-Mazz (2n=20.), E. fauriei H. L$\acute{e}$v. & Vaniot ex H. L$\acute{e}$v (2n=28) and E. jolkini Boiss. (2n=28) were determined for the first time in this study. The chromosome numbers of four taxa were same as previous ones; E. sieboldiana Moor. & Decne. (2n=20), E. ebracteolata Hayata (2n=20), E. humifusa Willd. ex Schlecht. (2n=22). But those of six taxa were different; E. esula L (2n= 16, 20, 60, 64 vs 2n=20), E. helioscopia L. (2n=12, 42 vs 2n=42), E. lucorum Rupr. (2n=28, 40 vs 2n=56), E. pekinensis Rupr. in Maxim. (2n=24 vs 2n=28, 56), E. maculata L. (2n=28, 42 vs 2n=12), E. supina Raf. (n=7 vs 2n=40). E. ebracteolata, E. pallasii and E. hylonoma were distingushcd from the other taxa by the chromosome numbers, size and satellites, E. maculata, E. humifusa, E. supina had the different basic and somatic chromosome numbers in spite of the similar morphological. anatomical and palynological chracters. The chromosomal character of Korean Euphorbia was supported the Ma and Hu's systems, and as above results, it was found to be a good character in delimiting above sections and estimating relationships for some species.

Genetic and morphological divergence of Euphorbia esula and E. maackii in Korea (Euphorbiaceae) (한국산 흰대극(Euphorbia esula)과 섬흰대극(E. maackii)의 유전적, 형태적 분화)

  • Jung, Han-Jin;Park, Ki-Ryong
    • Korean Journal of Plant Taxonomy
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    • v.42 no.4
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    • pp.267-274
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    • 2012
  • To understand morphological and genetic differentiation between Euphorbia esula and E. maackii we examined 12 morphological characters and 11 isozyme loci from 14 populations of two species. Species of E. esula complex (A = 1.63, P = 44.83, $H_e$ = 0.198) in Korea maintain nearly as high as the genetic diversity reported in East Asian E. jolkinii and E. fauriei while lower than those of E. ebracteolata and E. pekinensis in Korea. Although the ranges of most morphological character variation of the two species overlap, E. esula and E. maackii were well recognized by the combination of the morphological traits, and the result of UPGMA phenogram supports the two distinct species inhibited in Korea. However, isozyme data do not support the recognition of E. esula and E. maackii. The discordance between morphological and allozyme data should be explained by the recent divergence or gene flow via introgressive hybridization between two species.

Relationships of Korean Euphorbia L.(Euphorbiaceae) based on pollen morphology (화분 형태에 의한 한국산 대극속(Euphorbia L., Euphorbiaceae) 식물의 분류학적 유연관계)

  • Oh, Byoung-Un;Kim, Young-Su;Chung, Gyu-Young;Kim, Mi-Kyoung;Park, Ki-Ryong;Kim, Joo-Hwan;Park, Seon-Joo
    • Korean Journal of Plant Taxonomy
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    • v.32 no.3
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    • pp.339-362
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    • 2002
  • Pollen morphology of 13 species of Korean Euphorbia was re-examined by means of LM and SEM. Taxonomic evaluation of palynological characters and relationships among taxa were also discussed based on the analysis of polar length, equatorial diameter, aperture size and exine thickness. Korean Euphorbia species were classified into three groups based on the mean size of polar length (P) and equatorial diameter (E) as follows:Group 1. sect. Tulocarpa and Tithymalus of subgenus Esula; $(P){\times}(E)=(54.88-67.17{\mu}m){\times}(44.30-64.75{\mu}m)$, Group 2. sect. Esula and Helioscpiae of subgenus Esula; $(P){\times}(E)=(39.98-47.24{\mu}m){\times}(36.07-38.83{\mu}m)$, Group 3. sect. Chamaesyce and Hypericifoliae of subgenus Chamaesyce; $(P){\times}(E)=(30.32-32.51{\mu}m){\times}(21.71-26.23{\mu}m)$. Various features of surface sculpturing were also grouped into 8 types by the characteristics of perporation size and distance of perporations as well as connection state of it. Pollen size and surface sculpturing were comparatively available in the levels of subgenus and section. Especially subgenus Chamaesyce was distinctly different from subgenus Esula by having compactly distributed perporations on exine surface as well as its small size of pollen grains. Because of the great variations in pollen size and the occurrence of various types of surface sculpturing according to the local poulations of each species, it was evaluated that they were unsuitable in classifying each species of Euphorbia. But such cases, that is, E. hylonoma being more familiar with E. ebracteolata than E. Pallasii, and E. pekinensis and E. fauriei as well as E. pallasii being strongly related with each other based on the similarity of surface sculpturing, reflected its usefulness in the classification of some Euphorbia species.