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Nudol
Nudol is a phenanthrenoid of the orchids ''Eulophia nuda'', ''Eria carinata'', ''Eria stricta ''Eria'' is a genus of orchids with more than 50 species distributed in China, the Himalayas, the Indian Subcontinent, Southeast Asia, New Guinea, Polynesia, Melanesia and Micronesia. Species ''Eria'' species accepted by the Plants of the Worl ...'' and '' Maxillaria densa''.New Phenanthrene Derivatives from Maxillaria densa. Samuel Estrada, Rubén A. Toscanoand Rachel Mata, J. Nat. Prod., 1999, volume 62, issue 8, pages 1175–1178, References Phenanthrenoids {{aromatic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phenanthrenoid
Phenanthrenoids are chemical compounds formed with a phenanthrene backbone. These compounds occur naturally in plants, although they can also be synthesized. Phenanthrols Phenanthrols are any of five isomeric phenols derived from phenanthrene ( 1-phenanthrol, 2-phenanthrol, 3-phenanthrol, 4-phenanthrol, 9-phenanthrol). These molecules can be biomarkers of smoking and/or PAH worker exposure. Chemistry Under UV irradiation, stilbene and its derivatives undergo intramolecular cyclization to form dihydrophenanthrenes. Natural occurrences Phenanthrenes have been reported from flowering plants, mainly in the family Orchidaceae, and a few in the families Dioscoreaceae, Combretaceae and Betulaceae, as well as in the lower plant class Marchantiophyta (liverworts). The rhizome of ''Dioscorea communis'' contains phenanthrenes ( 7-hydroxy-2,3,4,8-tetramethoxyphenanthrene, 2,3,4-trimethoxy-7,8-methylenedioxyphenanthrene, 3-hydroxy-2,4,-dimethoxy-7,8-methylenedioxyphenanthrene, 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eria Carinata
''Cryptochilus acuminatus'', synonym ''Eria carinata'', is a species of orchid. It is native to Nepal, Bhutan, Assam, Thailand, Vietnam and peninsular Malaysia. Nudol is a phenanthrene Phenanthrene is a polycyclic aromatic hydrocarbon (PAH) with formula C14H10, consisting of three fused benzene rings. It is a colorless, crystal-like solid, but can also appear yellow. Phenanthrene is used to make dyes, plastics and pesticides, e ... of ''C. carinatus''.Nudol, a phenanthrene of the orchids Eulophia nuda, Eria carinata and Eria stricta. S Bhandari, Phytochemistry, January 1985, volume 24, issue 4, pages 801-804, References Eriinae Flora of Assam (region) Flora of Bhutan Orchids of Nepal Orchids of Thailand Orchids of Vietnam Orchids of Malaysia Plants described in 1845 {{Epidendroideae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eulophia Nuda
''Eulophia nuda'', the spectacular eulophia, is a species of corduroy orchid found in tropical and subtropical Asia to the Western Pacific. Description ''Eulophia nuda'' is a perennial herbaceous and terrestrial plant with underground tubers, with colourful reddish pink flowers. The plant has an erect inflorescence that may hold 12 to 20 flowers. Leaves are usually not visible, but appear after flowering. The elliptic to oblong or lance-shaped and tapering leaves are 125–130 cm long × 3–4 cm wide, including a 66 cm long leaf-stalk. Flowers pink. Range The species ranges from India through Thailand and Southeast Asia, Papua New Guinea, and Australia. Habitat Occurs in tropical and subtropical forests. Taxonomy About 35 synonyms are known including ''Eulophia spectabilis''. References Orchids of Australia nuda Beroidae is a family of ctenophores or comb jellies more commonly referred to as the beroids. It is the only family within the mono ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eria Stricta
''Eria'' is a genus of orchids with more than 50 species distributed in China, the Himalayas, the Indian Subcontinent, Southeast Asia, New Guinea, Polynesia, Melanesia and Micronesia. Species ''Eria'' species accepted by the Plants of the World Online as of February 2021: *''Eria albescens'' *''Eria aurantiaca'' *''Eria bancana'' *''Eria berringtoniana'' *''Eria bifalcis'' *'' Eria bigibba'' *''Eria binabayensis'' *''Eria carolettae'' *''Eria chlorantha'' *''Eria clausa'' *''Eria compressoclavata'' *''Eria convallariopsis'' *''Eria coronaria'' *''Eria curtisii'' *''Eria dayana'' *''Eria decipiens'' *''Eria floribunda'' *'' Eria gagnepainii'' *'' Eria geboana'' *'' Eria genuflexa'' *'' Eria halconensis'' *'' Eria imbricata'' *'' Eria imitans'' *'' Eria imperatifolia'' *''Eria javanica'' *'' Eria kaniensis'' *''Eria lactiflora'' *''Eria micholitziana'' *''Eria nepalensis'' *''Eria oblonga'' *''Eria odorifera'' *'' Eria pachycephala'' *'' Eria pera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maxillaria Densa
''Maxillaria densa'', the crowded maxillaria, is a species of orchid ranging from Mexico south to Nicaragua. Gymnopusin is a phenanthrenediol produced by the orchid as well as 2,5-dihydroxy-3,4-dimethoxyphenanthrene, 9,10-dihydro-2,5-dihydroxy-3,4-dimethoxyphenanthrene, 2,7-dihydroxy-3,4-dimethoxyphenanthrene (nudol Nudol is a phenanthrenoid of the orchids ''Eulophia nuda'', ''Eria carinata'', ''Eria stricta ''Eria'' is a genus of orchids with more than 50 species distributed in China, the Himalayas, the Indian Subcontinent, Southeast Asia, New Guinea, Pol ...), 9,10-dihydro-2,7-dihydroxy-3,4-dimethoxyphenanthrene, 2,5-dihydroxy-3,4,9-trimethoxyphenanthrene and 2,7-dihydroxy-3,4,9-trimethoxyphenanthrene.New Phenanthrene Derivatives from Maxillaria densa. Samuel Estrada, Rubén A. Toscano and Rachel Mata, J. Nat. Prod., 1999, volume 62, issue 8, pages 1175–1178, References External links densa Orchids of Central America Orchids of Belize Orchids of Mexic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
