• 한국자원식물학회지
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• 제21권6호
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• pp.427-430
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• 2008

Here we reported two unrecorded naturalized species from Korean flora. Andropogon virginicus L. of Graminaeae and Euphorbia postrata Aiton of Euphorbiaceae are collected from Dong-gu, Ulsan-si and Sinjindo-ri, Taean-gun, Chungcheongnam-do respectively. A. virginicus L. was easily distinguishable from Themeda triandras var. japonica Makino by keel on glume, 2-4 racemes and long hairy rachis. Thus, the new Korean name, 'Na-do-sol-sae', was given. E. postrata Aiton was cleary distinguished from related taxa by hairs on only edges of fruits. The new Korean name, 'Nu-un-ttang-bin-dae' was given considering the species epithet. Descriptions, illustrations and photographs showing habitat were given.

• 생약학회지
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• 제23권4호
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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.

• 약학회지
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• 제40권2호
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• pp.170-176
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• 1996

A chemical examination of the aerial parts of Euphorbia pekinensis $R_{UPRECHT}$. (Euphorbiaceae) has led to the isolation of seven hydrolyzable tannins and ten fl avonoid glycosides. The former ones have been identified as gallic acid, methylgallate, 3-O-galloyl shikimic acid, 1,3,4,6-tetra-O-galloyl-${\beta}-_D$-glucose, 1,2,3,4,6-penta-O-galloyl-${\beta}-_D$-glucose, corilagin, geraniin and the latter ones as isoquercitrin, quercitrin, astragalin, afzelin, prunin, rutin, kaempferol-3-O-rutinoside, quercetin-3-O-(2"-O-galloyl)-${\beta}-_D$-glucoside and quercetin-3-O-(2"-O-galloyl)-${\alpha}-_L$-rhamnoside on the basis of chemical and spectroscopic evidence.

• 생약학회지
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• 제27권2호
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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.

• Archives of Pharmacal Research
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• 제28권10호
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• pp.1131-1134
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• 2005

Two new benzopyrans 6-[1'-oxo-3'(R)-hydroxy-butyl]-5,7 -dimethoxy-2,2-dimethyl-2H-1-ben-zopyran (1) and 6-[1'-oxo-3'(R)-methoxy-butyl]-5,7 -dimethoxy-2,2-dimethyl-2H-1-benzopyran (2) were isolated from the leaves of Mallotus apelta Muell.-Arg., (Euphorbiaceae). Their chemical structures were elucidated by spectroscopic analyses, especially by 1D-, 2D-NMR and MS spectra. Compound 1 was found to have strong cytotoxic effect against two human cancer cell lines as human hepatocellular carcinoma (Hep-2, $IC_{50}\;:\;0.49\;{\mu}g/mL$) and rhabdosarcoma (RD, $IC_{50}\;:\;0.54\;{\mu}g/mL$), while compound 2 showed moderate activity against Hep-2 cell line ($IC_{50}\;:\;4.22\;{\mu}g/mL$) by in vitro assay.

• 식물분류학회지
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• 제41권2호
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• pp.164-170
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• 2011

부산광역시와 제주도에서 대극과의 미기록 귀화식물 2종을 발견하였다. Euphorbia heterophylla L. (아메리카대극)은 부산광역시 동래구 안락동 수영강변 공원에서 확인되었으며, E. dentata Michx. (톱니대극)과 비교하여 원줄기 잎은 호생하며, 소총포의 선체 입구는 원형인 특징으로 구별된다. 또한 Euphorbia hirta L. (털땅빈대)은 제주특별자치도 서귀포시 예래동 예래마을에서 확인되었으며, E. hypericifolia L. (큰땅빈대)와 비교하여 삭과에 털이 있는 특징으로 구별된다.

• Biomolecules & Therapeutics
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• 제6권2호
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• pp.139-144
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• 1998

Abstract -Phyllanthus ussuriensis which belongs to Euphorbiaceae has been used as a component of Korean traditional remedy against hepatitis and jaundice. Aqueous methanolic extract of P. ussuriensis was tested for antiviral activity of hepatitis B virus (HBV) in HepG2 2.2.15 cells which were derived through transfection of cloned HBV DNA into HepG2 human hrpatoblastoma cells. P. ussuriensis extract decreased the levels of extracellular HBV virion DNA and inhibited HBV replication at concentrations ranging from 50 to 500$\mu$g/ml. Partitioning of water suspension of the extract revealed that the activity mainly resides in the EtOAc fraction. Consecutive purification of the EtOAc fraction by silica-gel column chromatography resulted in the two active anti-HBV fractions. Southern blot analysis shows that the action mechanisms or active site of the two fractions seems to be different in terms of their inhibition of HBV replication steps.

• 식물분류학회지
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• 제49권2호
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• pp.101-106
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• 2019

A pollen morphological study was conducted using light and scanning electron microscopy involving six species belonging to the subtribe Neoguillauminiinae. Pollen samples from the six species are tricolporate, and the colpi are surrounded by broad margo, with the widest width in the equator, narrower toward the pole, and rounded at the end. Based on the pollen morphology, pollen of the species in the subtribe Neoguillauminiinae were divided into four types: the Neoguillauminia type (T1), the C. collinus type (T2), the C. casuarinoides type (T3) and the C. paucifolius type (T4). The generic divergence between Neoguillauminia and Calycopeplus was supported by the pollen characters of the size, amb and lumina shape. In particular, the traits of rounded shape in the outline of the polar view and circular lumina, which appear only in the pollen grains of N. cleopatra, support the recognition of Neoguillauminia as a monotypic genus. Calycopeplus oligandrus and C. paucifolius had the same reticulate pattern of pollen grains, supporting Forster's hypothesis that these two species are closely related. On the other hand, the close relationship between the morphologically similar C. collinus and C. casuarinoides was not supported by the pollen characters. Within the subtribe there are two equally parsimonious hypotheses regarding the evolution of exine characters. The first consists of two changes of microreticulate through parallel evolution from the primitive reticulate exine, and the second is that the microreticulate pattern is differentiated from the reticulate state and then reversed to reticulate pollen grains.

• 식물분류학회지
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• 제43권1호
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• pp.1-11
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• 2013

대극아과(Euphorbioideae)에 속하는 20종과 클로톤아과(Crotonoideae)의 1종을 대상으로 광학현미경과 주사 및 투과전자현미경을 이용하여 화분의 형태를 조사하였다. 화분형태학적 연구결과는 대극아과의 단계통 기원을 지지할 수 없으며, Stomatocalyceae족에서 나타나는 발아구연이 뚜렷하지 않고, 연속적이고 두꺼운 내표벽의 특징 등은 Stomatocalyceae가 대극아과로부터 독립시키는 것을 제안하고 있고, 이와 같은 해석은 기존의 계통분석 결과나 해부학적 결과와도 잘 일치하고 있다. 본 연구결과에서 나타난 이 족의 화분특징은 본 족이 화분형태적으로 깨풀아과(Acalyphoideae)와 연관성이 있음을 시사하고 있다. Stomatocalyceae의 2개의 아족은 화분형태적으로 잘 구별이 되는데: Hamilcoinae는 망상 혹은 미세망상의 표벽 무늬를 갖고 있고, Stomatocalycinae은 유공상의 표면에 작은 돌기가 존재한다. 대극족(Euphorbieae)의 세 아족은 서로 다른 유형으로 분류되는데, Euphorbiinae아족은 유공상, Neoguillauminiinae아족은 미세망상, Anthosteminae아족은 망상의 표벽무늬로 분류되어 Webster의 아족 분류체계를 잘 지지한다. Hureae와 Hippomaneae족은 유공상 패턴에 밋밋한 발아구연을 갖고 있어 유사한 화분형태를 보여주고 있다. 특히 Hura crepitans종에서 보여지는 표벽의 미세돌기는 Hippomaneae족의 Excoecaria속 종들과의 가까운 유연관계를 제시해준다. 기존 연구에 의하면 발아구연을 따라 독특한 비후된 내벽을 갖는 특징은 대극과에서 Euphorbieae족에서만 나타났다. 하지만 이번 연구에 의하면 동일한 비후된 내벽이 Maprounea brasiliensis와 Hura crepitans의 발아구연에서도 발견되었다. 대극족과 위 두 종에서 나타나는 유사한 내벽의 비후는 이들 간에 매우 가까운 유연관계가 있음을 보여주는 증거로 추측된다.

• Bulletin of the Korean Chemical Society
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• 제35권5호
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• pp.1556-1558
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• 2014