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Centaureidin
Centaureidin is an O-methylated flavonol. It can be isolated from '' Tanacetum microphyllum'', ''Achillea millefolium'', ''Brickellia veronicaefolia'', ''Bidens pilosa ''Bidens pilosa'' is an annual species of herbaceous flowering plant in the daisy family Asteraceae. Its many common names include hitch hikers, black-jack, beggarticks, farmer’s friends and Spanish needle, but most commonly referred to as ...'' and '' Polymnia fruticosa''. References O-methylated flavonols Flavonoids found in Asteraceae {{aromatic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polymnia Fruticosa
''Smallanthus fruticosus'' is a species of shrub in the family Asteraceae. It is native to the Andes (from Colombia to Bolivia). ''S. fruticosus'' contains the cytotoxic flavone centaureidin and the flavanone sakuranetin Sakuranetin is a flavan-on, the 7-methoxy derivative of naringenin, found in Polymnia fruticosa and rice, where it acts as a phytoalexin against spore germination of ''Pyricularia oryzae''. Glycosides Sakuranin is the 5-O-glucoside of sakuranet .... References fruticosus Flora of Ecuador Flora of Peru Flora of Colombia Flora of Bolivia {{Millerieae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
O-methylated Flavonol
The O-methylated flavonoids or methoxyflavonoids are flavonoids with methylations on hydroxyl groups (methoxy bonds). O-methylation has an effect on the solubility of flavonoids. Enzymes O-methylated flavonoids formation implies the presence of specific O-methyltransferase (OMT) enzymes which accept a variety of substrates. Those enzymes mediate the O-methylation on a specific hydroxyl group, like on 4' (example in ''Catharanthus roseus'') or 3' (example in rice) positions. Those positions can be ortho, meta, para and there can be a special 3-O-methyltransferase for the 3-OH position. Calamondin orange ('' Citrus mitis'') exhibits all of those activities. Plant enzymes * Apigenin 4'-O-methyltransferase * 8-hydroxyquercetin 8-O-methyltransferase * Isoflavone 4'-O-methyltransferase * Isoflavone 7-O-methyltransferase * Isoliquiritigenin 2'-O-methyltransferase * Isoorientin 3'-O-methyltransferase * Kaempferol 4'-O-methyltransferase * Luteolin O-methyltransferase * Methylquercet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tanacetum Microphyllum
''Tanacetum microphyllum'' is a species of flowering plant in the aster family, Asteraceae. It is endemic to the Iberian Peninsula.Abad, M. J., et al. (2003)The phytochemical and pharmacological investigations on ''Tanacetum microphyllum''.''Recent Research Developments in Life Sciences'' 1, II. 371-95. The plant has been used for centuries in Spanish traditional medicine as an anti-inflammatory and antirheumatic. Compounds isolated from extracts of the plant include santin, ermanin, centaureidin Centaureidin is an O-methylated flavonol. It can be isolated from '' Tanacetum microphyllum'', ''Achillea millefolium'', ''Brickellia veronicaefolia'', ''Bidens pilosa ''Bidens pilosa'' is an annual species of herbaceous flowering plant in t ..., and hydroxyachillin. References microphyllum Flora of Portugal Flora of Spain Plants described in 1838 Medicinal plants of Europe Endemic flora of the Iberian Peninsula {{Anthemideae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Achillea Millefolium
''Achillea millefolium'', commonly known as yarrow () or common yarrow, is a flowering plant in the family Asteraceae. Other common names include old man's pepper, devil's nettle, sanguinary, milfoil, soldier's woundwort, and thousand seal. The plant is native to temperate regions of the Northern Hemisphere in Asia, Europe, and North America. It has been introduced as a feed for livestock in New Zealand and Australia. Description ''Achillea millefolium'' is an erect, herbaceous, perennial plant that produces one to several stems in height, and has a spreading rhizomatous growth form. Leaves are evenly distributed along the stem, with the leaves near the middle and bottom of the stem being the largest. The leaves have varying degrees of hairiness (pubescence). The leaves are long, bipinnate or tripinnate, almost feathery, and arranged spirally on the stems. The leaves are cauline, and more or less clasping, being more petiolate near the base. The inflorescence has 4 to 9 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brickellia Veronicaefolia
''Brickellia veronicifolia'' is a North American species of plants in the family Asteraceae. It is widespread across much of Mexico, from Chihuahua to Oaxaca. In the United States, it very rare, found only in the Chisos Mountains inside Big Bend National Park in Texas, and also in Otero County in New Mexico. ''Brickellia veronicifolia'' is a shrub up to 90 cm (3 feet) tall. It produces large numbers of small, pale yellow or cream-colored flower heads. ''Brickellia veronicifolia'' contains high amounts of essential oils, Germacrene D, a natural insecticide and the two flavonoids brickellin and eupatolitin Eupatolitin is a chemical compound. It is an ''O''-methylated flavonol, a type of flavonoid. Eupatolitin can be found in ''Brickellia veronicaefolia'' and in ''Ipomopsis aggregata''. Glycoside Eupatolin is a eupatolitin glycoside containing a .... References External links veronicifolia Flora of Mexico Plant toxin insecticides Plants described in 1818 Flo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bidens Pilosa
''Bidens pilosa'' is an annual species of herbaceous flowering plant in the daisy family Asteraceae. Its many common names include hitch hikers, black-jack, beggarticks, farmer’s friends and Spanish needle, but most commonly referred to as cobblers pegs. It is native to the Americas but is widely distributed as an introduced species in other regions worldwide including Eurasia, Africa, Australia, South America and the Pacific Islands.''Bidens pilosa''. Pacific Island Ecosystems at Risk (PIER). USFS. Description ''Bidens pilosa'' is a branched annual of gracile |
