• 식물분류학회지
• /
• 제50권2호
• /
• pp.120-147
• /
• 2020

Solenostomataceae are revised for the Korean Peninsula. In total, 27 species in four genera (Metasolenostoma, Plectocolea, Protosolenostoma, Solenostoma) are recorded, the occurrence of 24 of which is confirmed. Each confirmed species is provided with an ecological overview, and a list of specimens examined and illustrations based on materials from Korea. Solenostoma jirisanense sp. nov. is described.

• Natural Product Sciences
• /
• 제6권1호
• /
• pp.44-48
• /
• 2000

Tiliacora racemosa Colebr. belongs to the family Menispermaceae, the biggest storehouse of diphenylbisbenzylisoquinoline (DBBI) alkaloids. Exhaustive chemical processing of the root of T. racemosa by the application of modern separation techniques yielded a DBBI alkaloid which was identified as tiliacorine using sophisticated spectroscopic methods $(UV,\;IR,\;^1H-NMR,\;Mass)$. Tiliacorine possesses neuromuscular blocking activity. It produces a dose dependent hypotensive effect in rats and cats, and this effect is blocked by atropine.

• Natural Product Sciences
• /
• 제6권3호
• /
• pp.126-130
• /
• 2000

Tiliacora racemosa Colebr. belonging to the family Menispermaceae, is the biggest storehouse of diphenyl bisbenzylisoquinoline (DBBI) alkaloids. Exhaustive chemical processing of the root of T. racemosa by the application of modern separation techniques yielded a DBBI alkaloid which was identified as tiliacorine using sophisticated spectroscopic methods (UV, IR, $^1H-NMR$, MS). Haematological study with tiliacorine proved that there was no abnormal haematological results in comparison with the normal values. Chronic toxicity study with tiliacorine revealed that the alkaloid is devoid of any hepatotoxic and nephrotoxic action.

• Natural Product Sciences
• /
• 제7권3호
• /
• pp.83-86
• /
• 2001

Two new bisbenzylisoquinoline alkaloids tiliacosine (1) and tiliasine (2) were isolated from the leaves of Tiliacora racemosa Colebr.. The structures of these alkaloids were established on the basis of spectral evidence and by the correlation of their $^1H-NMR$ spectral data with those of the congeners N-methyltiliamosine (3), tiliamosine (4) and tiliacorine (5).

• Natural Product Sciences
• /
• 제5권3호
• /
• pp.142-147
• /
• 1999

Tiliacora racemosa Colebr. belonging to the family Menispermaceae is the biggest store-house of diphenyl bisbenzylisoquinoline (DBBI) alkaloids. Exhaustive chemical processing of the root of T. racemosa by the application of modern separation techniques yielded a DBBI alkaloid which was identified as tiliacorine using sophisticated spectroscopic methods (UV, IR, $1^H-NMR$, Mass). Tiliacorine potentiated the sleeping time induced by standard hypnotics viz. chlorpromazine (CPZ), pentobarbitone (PB) and diazepam (DZ) in a dose dependent manner. Tiliacorine potentiated the analgesic action of standard analgesic agents viz., morphine and meperidine. It was also found to possess anti convulsive activity in the strychnine induced convulsion model.

• 생약학회지
• /
• 제33권1호통권128호
• /
• pp.18-20
• /
• 2002

Assay-guided fractionation of the methanol extract of the leaves of Albizzia julibrissin has furnished quercitrin (1) and afzelin (2) as the scavengers of DPPH radical. Quercitrin and afzelin showed scavenging activity of DPPH free radical with the $IC_{50}$ values of 17.3 and 71.5 ${\mu}M$, respectively.

• 식물분류학회지
• /
• 제38권4호
• /
• pp.531-537
• /
• 2008

한국의 중부지방에서 발견한 현호색속 (Corydalis) Corydalis절에 속하는 미기록 식물, 수염현호색 [Corydalis caudata (Lam.) Pers.]을 채집하여 기재 및 도해하였다. 수염현호색은 수염 모양의 꽃받침, 위쪽을 향해 굽은 거, 가지가 다수 분지되는 특징 등에서 현호색속의 다른 종들과 쉽게 구분이 된다. 수염 모양의 꽃받침 특징을 살려 수염현호색으로 명명하였다.

• 식물분류학회지
• /
• 제49권4호
• /
• pp.294-299
• /
• 2019

Allium ulleungense (subg. Anguinum, Amaryllidaceae), from Ulleungdo Island, Korea, is described as a new species. It is clearly distinguished from its close relatives, A. microdictyon and A. ochotense, by its broader leaves and larger whitish perianth and by its diploid chromosome number, which is 2n = 2x = 16. The lengths of the chromosomes range from 11.3 to 15.75 ㎛. Molecular phylogenetic analyses using nuclear and chloroplast markers also clearly indicate that A. ulleungense is genetically distinct from other species of the subg. Anguinum.

• Plant Resources
• /
• 제7권3호
• /
• pp.222-225
• /
• 2004

In Japan, propagation of cyclamen is mainly from seedlings. However, seeds are expensive and germination is slow and non..uniform. Therefore, to achieve genetically uniform propagation, multiplication must be vegetative. The rooted tuberous stems without shoots as sources of explants were cultured on the media containing BA and sucrose. After 30 days cultivation, tuberous roots were produced from the root ends attached to a tuberous stem and its capability was dependent on the type of media. The highest percentage of tuberous root formation was observed in Culture on the medium of 1/3 MS containing 0.05mgL$^{-1}$ NAA, 0.5mg L$^{-1}$ BA and 5% sucrose. Growth rates of the tuberous roots were greatly influenced by the cutting positions of a root in explants. The highest growth of was observed if small amount of root end was cut at initiation of tissue culture.

• Journal of Species Research
• /
• 제2권1호
• /
• pp.69-77
• /
• 2013

One newly recorded species, Dryopteris namegatae, sect. Hirtipedes, was collected in forests in Jeju-do. Dryopteris namegatae (vernacular name: 'Tam-ra-top-ji-ne-go-sa-ri') was distinguished from other Korean congeners of sect. Hirtipedes of the genus Dryopteris by having stiff black scales on stipe and rachis, less narrowed base of lamina, and adaxial surface of pinna immersed along veins. Dryopteris hangchowensis ('Gak-si-top-ji-ne-go-sa-ri', new local name), recorded without any comments and description, was reexamined with similar taxa and was distinguished by smaller plants, brilliant leaves, many prominent fimbriate blackish scales on stipe and rachis, long-pointed apex of lamina and pinna, halfway-lobed pinna, and narrowest pinna. Descriptions and illustrations of the two species and their photographs in the habitat are provided along with a key to the species of sect. Hirtipedes of Dryopteris in Korea.