Alkaloids from Cynanchum komarovii with inhibitory activity against the tobacco mosaic virus.

abstract：:From the aerial parts of Clerodendrum inerme, two new sterols (4alpha-methyl-24beta-ethyl-5alpha-cholesta-14, 25-dien-3beta-ol and 24beta-ethylcholesta-5, 9(11), 22E-trien-3beta-ol) and a new aliphatic ketone (11-pentacosanone) were isolated together with another known aliphatic ketone (6-nonacosanone) and a diterpene...

journal_title：Phytochemistry

authors： Pandey R,Verma RK,Singh SC,Gupta MM

更新日期：2003-06-01 00:00:00

abstract：:Osteoarthritis (OA) is a major disability of elderly people. Sesamin is the main compound in Sesamun indicum Linn., and it has an anti-inflammatory effect by specifically inhibiting Δ5-desaturase in polyunsaturated fatty acid biosynthesis. The chondroprotective effects of sesamin were thus studied in a porcine cartila...

journal_title：Phytochemistry

authors： Phitak T,Pothacharoen P,Settakorn J,Poompimol W,Caterson B,Kongtawelert P

更新日期：2012-08-01 00:00:00

abstract：:Uronic acid oxidase activity was found in an extract from harvested peaches that was incubated with citrus pectin at pH 8.5. The product of this reaction was identified by GC-MS analysis to be galactaric acid. The reaction was linear at 37 degrees C for up to 20 h, and the pH optimum was 8.5. The activity found in fir...

journal_title：Phytochemistry

authors： Cantu D,Greve LC,Lurie S,Labavitch JM

更新日期：2006-01-01 00:00:00

abstract：:Phenolic composition of Ambrosia artemisiifolia L. pollen and sub-pollen particles (SPP) aqueous extracts was determined, using a novel extraction procedure. Total phenolic and flavonoid content was determined, as well as the antioxidative properties of the extract. Main components of water-soluble pollen phenolics ar...

journal_title：Phytochemistry

authors： Mihajlovic L,Radosavljevic J,Burazer L,Smiljanic K,Cirkovic Velickovic T

更新日期：2015-01-01 00:00:00

abstract：:The brown-rot fungus Gloeophyllum odoratum was collected from spruce stumps in southern Finland. The volatiles in the fruiting body and fungal cultures grown in malt extract and liquid medium were investigated. Chitin, chitosan and D-(+)-glucosamine at a concentration of 450 mgl-1 medium were used as elicitors. Chitos...

journal_title：Phytochemistry

authors： Kahlos K,Kiviranta JL,Hiltunen RV

更新日期：1994-07-01 00:00:00

abstract：:Strychnos nux-vomica L. (Loganiaceae) is famous for its monomeric alkaloid content, such as strychnine, a convulsant poison. The stem bark of the tree is traditionally used to treat intermittent fever in South East Asia. In various studies, it appeared that dimeric indolo-monoterpenic alkaloids possess a promising act...

journal_title：Phytochemistry

authors： Jonville MC,Dive G,Angenot L,Bero J,Tits M,Ollivier E,Frédérich M

更新日期：2013-03-01 00:00:00

abstract：:Prenylation reactions contribute considerably to the diversity of natural products. Polyprenylated secondary metabolites include hyperforin which is both quantitatively and pharmacologically a major constituent of the medicinal plant Hypericum perforatum (St. John's wort). Cell cultures of the related species Hypericu...

journal_title：Phytochemistry

authors： Boubakir Z,Beuerle T,Liu B,Beerhues L

更新日期：2005-01-01 00:00:00

abstract：:Twenty phenolic compounds, representatives of proanthocyanidins and gallic acid/hexahydroxyldiphenic acid esters of glucose, have been assessed for their ability to inhibit binding of specific radioligands to 16 receptors. The receptors utilized were alpha 1-, alpha 2- and beta-adrenoceptors, adenosine 1, dopamine 1 a...

journal_title：Phytochemistry

authors： Zhu M,Phillipson JD,Greengrass PM,Bowery NE,Cai Y

更新日期：1997-02-01 00:00:00

abstract：:In search for new or chemo-taxonomically relevant bioactive compounds from chemically unexplored Hypericum species, four previously undescribed natural products, named peplidiforones A-D were isolated and characterized from Hypericum peplidifolium A. Rich., together with six known compounds. The structures of all comp...

journal_title：Phytochemistry

authors： Fobofou SA,Harmon CR,Lonfouo AH,Franke K,Wright SM,Wessjohann LA

更新日期：2016-04-01 00:00:00

abstract：:In this study we were mirroring suggested in vivo phenomena of lignin-hemicellulose complex formation in vitro, by cross-linking Norway spruce (Picea abies) galactoglucomannans, xylans and lignin moieties to high molecular weight complexes by laccase treatment. We were able to observe the oxidation and cross-linking o...

journal_title：Phytochemistry

authors： Oinonen P,Zhang L,Lawoko M,Henriksson G

更新日期：2015-03-01 00:00:00

abstract：:Nine oxygenated guaiane-type sesquiterpenes and three isopimarane diterpenes were isolated from the culture broth of an endophytic fungus, Xylaria sp. YM 311647, obtained from Azadirachta indica. The structures of these compounds were elucidated by interpretation of spectroscopic data. The absolute configurations of t...

journal_title：Phytochemistry

authors： Wu SH,He J,Li XN,Huang R,Song F,Chen YW,Miao CP

更新日期：2014-09-01 00:00:00

abstract：:Acylamidohydrolases from higher plants have not been characterized or cloned so far. AtAMI1 is the first member of this enzyme family from a higher plant and was identified in the genome of Arabidopsis thaliana based on sequence homology with the catalytic-domain sequence of bacterial acylamidohydrolases, particularly...

journal_title：Phytochemistry

authors： Pollmann S,Neu D,Weiler EW

更新日期：2003-02-01 00:00:00

abstract：:The effect of light exposure on the steroidal glycoalkaloid content of Solanum phureja tubers has been investigated and compared with that in domesticated potato (Solanum tuberosum) tubers. The results indicated that the increase in the concentration of solanidine-based glycoalkaloids, alpha-solanine and alpha-chaconi...

journal_title：Phytochemistry

authors： Griffiths DW,Bain H,Deighton N,Robertson GW,Finlay M,Dale B

更新日期：2000-04-01 00:00:00

abstract：:A method is described for the enrichment of odd very-long-chain polyunsaturated fatty acids (VLCPUFAs) by means of RP-HPLC and argentation TLC from total fatty acids of the dinoflagellate A. carterae and their identification as picolinyl esters by means of microbore liquid chromatography-mass spectrometry with atmosph...

journal_title：Phytochemistry

authors： Rezanka T,Nedbalová L,Sigler K

更新日期：2008-11-01 00:00:00

abstract：:Investigation of a hairy root culture of Tripterygium wilfordii var. regelii transformed with Agrobacterium rhizogenes resulted in the isolation of new diterpenoid and sesquiterpenoid together with known triterpenoids. These structures were determined by spectroscopic analyses. ...

journal_title：Phytochemistry

authors： Nakano K,Yoshida C,Furukawa W,Takaishi Y,Shishido K

更新日期：1998-11-20 00:00:00

abstract：:From a water extract of whole plants of Sesamum indicum, two new, and six known phenylethanoid glycosides, and three new triglycosides which had the same sugar sequence were isolated. The structures of the new compounds were elucidated from chemical and spectroscopic evidence. ...

journal_title：Phytochemistry

authors： Suzuki N,Miyase T,Ueno A

更新日期：1993-10-01 00:00:00

abstract：:A bioassay-guided fractionation of Agave offoyana leaves led to the isolation of five steroidal saponins (1-5) along with six known saponins (6-11). The compounds were identified as (25R)-spirost-5-en-2α,3β-diol-12-one 3-O-{α-l-rhamnopyranosyl-(1→3)-O-β-d-glucopyranosyl-(1→2)-O-[β-d-xylopyranosyl-(1→3)]-O-β-d-glucopyr...

journal_title：Phytochemistry

authors： Pérez AJ,Simonet AM,Calle JM,Pecio Ł,Guerra JO,Stochmal A,Macías FA

更新日期：2014-09-01 00:00:00

abstract：:The enzymatic glucose cleavage of palicoside revealed the biosynthetic pathway to akagerine, whereas the conversion of dolichantoside led to a new quaternary heteroyohimbine alkaloid named N(b)-methyl-21-beta-hydroxy-mayumbine. The hypothetical models of reactions occurring after the conversion of both substrates are ...

journal_title：Phytochemistry

authors： Brandt V,Tits M,Penelle J,Frédérich M,Angenot L

更新日期：2001-07-01 00:00:00

abstract：:A rare 16β-H steroidal alkaloid saponin (1), an avenacoside-type saponin (2), two steroidal saponins (4, 5), one revised-structure steroidal saponin (3) and six known compounds (6-11) were isolated from aerial parts of Solanum surattense Burm. f. Their structures were established on the basis of physical data, as well...

journal_title：Phytochemistry

authors： Lu Y,Luo J,Kong L

更新日期：2011-05-01 00:00:00

abstract：:A truncated history of the contribution of plants to medicine is given with reference to some of the less well known ancestors of the Harborne family. Six of the top 20 prescriptions dispensed in 1996 were natural products and the clinical use of drugs such as artemisinin, etoposide and taxol has once more focussed at...

journal_title：Phytochemistry

authors： Phillipson JD

更新日期：2001-02-01 00:00:00

abstract：:Non-targeted LC-MS metabolomics on fruit of three wild and domesticated apple species (Malus sylvestris, M. sieversii and M. domestica) showed that two crab apple (M. sylvestris) accessions were distinguished by high concentrations of an ascorbic acid glycoside (AAG). This was partly purified, but key NMR signals were...

journal_title：Phytochemistry

authors： Richardson AT,Cho J,McGhie TK,Larsen DS,Schaffer RJ,Espley RV,Perry NB

更新日期：2020-05-01 00:00:00

abstract：:A method for the global analysis of yeast intracellular metabolites, based on electrospray mass spectrometry (ES-MS), has been developed. This has involved the optimization of methods for quenching metabolism in Saccharomyces cerevisiae and extracting the metabolites for analysis by positive-ion electrospray mass spec...

journal_title：Phytochemistry

authors： Castrillo JI,Hayes A,Mohammed S,Gaskell SJ,Oliver SG

更新日期：2003-03-01 00:00:00

abstract：:Ten flavonoid compounds were isolated from the dried leaves of Polygonum hydropiper L. (Laksa leaves), and identified as 3-O-alpha-L-rhamnopyranosyloxy-3',4',5,7-tetrahydroxyflavone; 3-O-beta-D-glucopyranosyloxy-4',5,7-trihydroxyflavone; 6-hydroxyapigenin; 6"-O-(3,4,5-trihydroxybenzoyl) 3-O-beta-D-glucopyranosyloxy-3'...

journal_title：Phytochemistry

authors： Peng ZF,Strack D,Baumert A,Subramaniam R,Goh NK,Chia TF,Tan SN,Chia LS

更新日期：2003-01-01 00:00:00

abstract：:Preparative-scale fermentation of papaveraldine (1), the known benzylisoquinoline alkaloid, with Mucor ramannianus 1839 (sih) has resulted in a stereoselective reduction of the ketone group and the isolation of S-papaverinol (2) and S-papaverinol N-oxide (3). The structure elucidation of both metabolites was based pri...

journal_title：Phytochemistry

authors： El Sayed KA

更新日期：2000-03-01 00:00:00

abstract：:Phenylacetic acid derivatives, methyl 2-acetyl-3,5-dihydroxyphenylacetate (1) and methyl 2-acetyl-5-hydroxy-3-methoxyphenylacetate (3); curvulin or ethyl 2-acetyl-3,5-dihydroxyphenylacetate (4), a known metabolite of Curvularia siddiqui, and 4-epiradicinol (5) have been isolated from the culture mycelia of Curvularia ...

journal_title：Phytochemistry

authors： Varma GB,Fatope MO,Marwah RG,Deadman ME,Al-Rawahi FK

更新日期：2006-09-01 00:00:00

abstract：:In Central America aerial parts of the Asteraceae Milleria quinqueflora are used in traditional medicine as a remedy for skin infections. Reinvestigation of this plant afforded thirteen sesquiterpene lactones (Sls), three of them are new. All isolated Sls were studied for their anti-inflammatory activity using the tra...

journal_title：Phytochemistry

authors： Castro V,Rüngeler P,Murillo R,Hernandez E,Mora G,Pahl HL,Merfort I

更新日期：2000-01-01 00:00:00

abstract：:Seeds of 57 species of the genus Trifolium have been studied for the occurrence and concentration of soyasapogenol B glycosides and flavonoids. It was shown that all tested species contained soyasaponin I and in some species astragaloside VIII and/or 22-O-glucoside and 22-O-diglucoside of soyasaponin I were also prese...

journal_title：Phytochemistry

authors： Oleszek W,Stochmal A

更新日期：2002-09-01 00:00:00

abstract：:A new anthraquinone glycoside, emodin-6-O-beta-D-glucopyranoside, and a new simple halogenated flavan-3-ol, 6-chlorocatechin, have been isolated from the roots of Rumex patientia L. together with seven known phenolic compounds. Their structures were elucidated on the basis of spectroscopic methods. Cytotoxic effects a...

journal_title：Phytochemistry

authors： Demirezer LO,Kuruüzüm-Uz A,Bergere I,Schiewe HJ,Zeeck A

更新日期：2001-12-01 00:00:00

abstract：:Stem bark of Hippocratea excelsa afforded six pentacyclic triterpenes, five oleanane and one ursane types. They were identified as 11beta,21beta-dihydroxy-olean-12-ene-3-one (2), 3alpha,11alpha,21beta-trihydroxy-olean-12-ene (3), 3alpha,21beta-dihydroxy-11alpha-methoxy-olean-12-ene (4), 3alpha,21beta-dihydroxy-olean-9...

journal_title：Phytochemistry

authors： Cáceres-Castillo D,Mena-Rejón GJ,Cedillo-Rivera R,Quijano L

更新日期：2008-02-01 00:00:00

abstract：:A novel minor triterpenoid saponin mimusin (3-O-[beta-D-glucopyranosyl- (1-->6)-beta-D-glucopyranosyl]-2 beta,3 beta,6 beta,23-tetrahydroxyolean- 12-en-28-oic acid 28-O-alpha-L-rhamnopyranosyl-(1-->3)-beta-D-xylopyranosyl-(1-->4)-alpha- L- rhamnopyranosyl-(1-->2)-alpha-L-arabinopyranoside was isolated from the seeds o...

journal_title：Phytochemistry

authors： Sahu NP,Koike K,Jia Z,Nikaido T

更新日期：1997-03-01 00:00:00