Cadinane sesquiterpenes from the mushroom Lyophyllum transforme.

abstract：:Compound-specific hydrogen and carbon isotopic compositions in n-alkanoic acids, phytol and sterols were determined for various plant classes (terrestrial C3-angiosperm; C3-gymnosperm; C4; crassulacean acid metabolism (CAM); and aquatic C3 plants) in order to investigate isotopic fractionations among various plant cla...

journal_title：Phytochemistry

authors： Chikaraishi Y,Naraoka H,Poulson SR

更新日期：2004-05-01 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：:An investigation into the antibacterial properties of Hypericum foliosum Aiton. (Guttiferae) has led to the isolation of a new bioactive acylphloroglucinol natural product which by NMR spectroscopy and mass spectrometry was characterised as 1,3,5-trihydroxy-6-[2''',3'''-epoxy-3'''-methyl-butyl]-2-[2''-methyl-butanoyl]...

journal_title：Phytochemistry

authors： Gibbons S,Moser E,Hausmann S,Stavri M,Smith E,Clennett C

更新日期：2005-06-01 00:00:00

abstract：:A structure-activity relationships study was conducted assaying 15 natural analogues and derivatives belonging to two groups of organic compounds, nonenolides and cytochalasins, for their toxicity against the composite perennial weeds Cirsium arvense and Sonchus arvensis occurring through the temperate region of world...

journal_title：Phytochemistry

authors： Berestetskiy A,Dmitriev A,Mitina G,Lisker I,Andolfi A,Evidente A

更新日期：2008-02-01 00:00:00

abstract：:The leaf essential oils of Cistus monspeliensis plants growing wild on calcareous and siliceous soils in Provence (South of France) were analysed by GC and GC-MS. Qualitative and quantitative differences are noted in the essential oil composition between the Cistus populations from the two soil types. For chemotaxonom...

journal_title：Phytochemistry

authors： Robles C,Garzino S

更新日期：2000-01-01 00:00:00

abstract：:Seven dammarane glycosides, gypenosides GC1 to GC7, together with ten known compounds, gypenosides V, XIV, XLII-XLVI, gynosaponins TN-1, -2, and gymnemaside VI, were isolated from the methanol extract of the aerial parts of Gynostemma pentaphyllum. Their structures were elucidated by both analysis of 1D and 2D NMR spe...

journal_title：Phytochemistry

authors： Kim JH,Han YN

更新日期：2011-08-01 00:00:00

abstract：:Two biflavonoids namely, 2",3"-dihydroochnaflavone and 2",3"-dihydroochnaflavone 7"-O-methyl ether, and a flavonoid glycoside, 6-gamma,gamma-dimethylallyltaxifolin 7-O-beta-D-glucoside were isolated from the leaves of Ochna integerrima. ...

journal_title：Phytochemistry

authors： Likhitwitayawuid K,Rungserichai R,Ruangrungsi N,Phadungcharoen T

更新日期：2001-02-01 00:00:00

abstract：:As a basis for future investigations of evolutionary trajectories and biosynthetic mechanisms underlying variations in glucosinolate structures, we screened members of the crucifer tribe Cardamineae by HPLC-MS/MS, isolated and identified glucosinolates by NMR, searched the literature for previous data for the tribe, a...

journal_title：Phytochemistry

authors： Olsen CE,Huang XC,Hansen CIC,Cipollini D,Ørgaard M,Matthes A,Geu-Flores F,Koch MA,Agerbirk N

更新日期：2016-12-01 00:00:00

abstract：:Two new abietane-type diterpenoid o-quinones, 7beta-methoxyabieta-8,13-diene-11,12-dione-(20,6beta)-olide (rosmaquinone A) (1) and 7alpha-methoxyabieta-8,13-diene-11,12-dione-(20,6beta)-olide (rosmaquinone B) (2), together with six known compounds were isolated from the aerial parts of Rosmarinus officinalis L. The st...

journal_title：Phytochemistry

authors： Mahmoud AA,Al-Shihry SS,Son BW

更新日期：2005-07-01 00:00:00

abstract：:Three plant proteinase inhibitors BbKI (kallikrein inhibitor) and BbCI (cruzipain inhibitor) from Bauhinia bauhinioides, and a BrTI (trypsin inhibitor) from B. rufa, were examined for other effects in Callosobruchus maculatus development; of these only BrTI affected bruchid emergence. BrTI and BbKI share 81% identitie...

journal_title：Phytochemistry

authors： Sumikawa JT,Brito MV,Macedo ML,Uchoa AF,Miranda A,Araujo AP,Silva-Lucca RA,Sampaio MU,Oliva ML

更新日期：2010-02-01 00:00:00

abstract：:In continuation of our phytochemical studies on Caryopteris x clandonensis (Lamiaceae), three further iridoids were isolated from the methanolic extract of the stems. Their structures were established by 1D and 2D NMR and MS analysis as a C-6 epimer of 8-O-acetylharpagide (6-epi-8-O-acetylharpagide), a derivative of h...

journal_title：Phytochemistry

authors： Hannedouche S,Stanislas E,Moulis C,Fourasté I

更新日期：2000-08-01 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：:The kaempferol derivative 3,7-di-O-methyl-4'-O-beta-[alpha rhamnosyl (1 --> 6)]-glucopyranoside (siparunoside) was isolated from the leaves of Sparuna apiosyce. Its structure was established by extensive NMR studies. The alkaloids reticuline and liriodenine were also isolated from the leaves along with the kaempferol ...

journal_title：Phytochemistry

authors： Leitão GG,Soares SS,Brito TD,Delle Monache F

更新日期：2000-11-01 00:00:00

abstract：:Six cardenolides were isolated from the anti-tumor active fraction of the 75% ethanol extract of Streptocaulon juventas (Asclepiadaceae), mainly found in southwest of China. These were named 1α, 14β-dihydroxy-5β-card-20 (22)-enolide 3-O-[O-β-D-glucopyranosyl-(1→2)-β-D-digitalopyranoside] (1), acovenosigenin A 3-O-[O-β...

journal_title：Phytochemistry

authors： Xue R,Han N,Ye C,Wang HB,Yin J

更新日期：2013-04-01 00:00:00

abstract：:The role played by molecules of the strigolactone family in stimulating the germination of seeds of parasitic weeds of the genera Striga, Orobanche and Alectra has never been clearly elucidated. The biogenesis of these unusual terpenoid lactones, originally identified in minute quantities in the root exudates of a sma...

journal_title：Phytochemistry

authors： Humphrey AJ,Beale MH

更新日期：2006-04-01 00:00:00

abstract：:The heterologous expression of cDNAs encoding the alkaloid biosynthetic enzymes, strictosidine synthase [EC 4.3.3.2] from Rauvolfia serpentina and the berberine bridge enzyme [(S)-reticuline: oxygen oxidoreductase (methylene-bridge-forming), EC 1.5.3.9] from Eschscholtzia californica, has been achieved in a cell cultu...

journal_title：Phytochemistry

authors： Kutchan TM,Bock A,Dittrich H

更新日期：1994-01-01 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：:Investigations of the stem and root bark of Myrica arborea (Myricaceae) have yielded two novel diarylheptanoids, myricarborin and 11-O-beta-D-xylopyranosylmyricanol along with the known myricanol and 5-O-beta-D-glucopyranosylmyricanol. The structures of the novel compounds were determined by spectroscopic methods. ...

journal_title：Phytochemistry

authors： Tene M,Wabo HK,Kamnaing P,Tsopmo A,Tane P,Ayafor JF,Sterner O

更新日期：2000-08-01 00:00:00

abstract：:From dengue to herpes and influenza to AIDS, the phytoestrogens that are present in many fruits and vegetables have been shown to exert anti-viral properties. Here we review the various different anti-viral mechanisms employed by phytoestrogens. ...

journal_title：Phytochemistry

authors： Martin JH,Crotty S,Warren P,Nelson PN

更新日期：2007-02-01 00:00:00

abstract：:Ten stigmastane-type steroids bearing unusual Δ28-24-hydroxy side chains, dictyopterisins A-J, including three pairs of C-24 epimers, dictyopterisins B/C, F/G, and I/J, were isolated from the brown alga Dictyopteris undulata Holmes, together with two previously reported analogues, (24S)- and (24R)-saringosterol. Their...

journal_title：Phytochemistry

authors： Feng MT,Wang T,Liu AH,Li J,Yao LG,Wang B,Guo YW,Mao SC

更新日期：2018-02-01 00:00:00

abstract：:Fibrillins (FBNs) constitute a plastid-lipid-associated protein family that plays a role in chloroplast development, lipids metabolism and stress responses in plants. Until now, FBNs have been functionally characterized in stability of thylakoid and responses to the different stress stimuli. Consequently, phylogeny, d...

journal_title：Phytochemistry

authors： Li J,Li X,Khatab AA,Xie G

更新日期：2020-07-01 00:00:00

abstract：:A catechol oxidase from lemon balm (Melissa officinalis) moCO which only catalyzes the oxidation of catechols to quinones without hydroxylating tyrosine was purified. The molecular mass of the M. officinalis enzyme of 39,370 Da was obtained by MALDI mass spectrometry and the isoelectric point was determined to be 3.4....

journal_title：Phytochemistry

authors： Rompel A,Büldt-Karentzopoulos K,Molitor C,Krebs B

更新日期：2012-09-01 00:00:00

abstract：:Vanillin (4-hydroxy-3-methoxybenzaldehyde) is an important flavour and aroma molecule, but is also of interest because of its biogenetic relationship to the phenylpropanoid pathway and to other molecules of physiological significance, notably salicylate. Recent progress towards characterisation of the biosynthesis of ...

journal_title：Phytochemistry

authors： Walton NJ,Mayer MJ,Narbad A

更新日期：2003-07-01 00:00:00

abstract：:Several glycosides were isolated, as polyacetates, from the n-BuOH fraction of the Tinospora cordifolia stems. The structures of three new norditerpene furan glycosides cordifoliside A, B and C have been established by 1D and 2D NMR spectroscopy. ...

journal_title：Phytochemistry

authors： Gangan VD,Pradhan P,Sipahimalani AT,Banerji A

更新日期：1994-10-01 00:00:00

abstract：:A new sterol with a non-conventional side chain has been isolated from the whole plant of Anoectochilus koshunensis, together with four known sterols, a megastigmane glucoside and 2'-deoxyadenosine. The structure of the new sterol was elucidated as 26-methylstigmasta-5,22,25, (27)-trien-3 beta-ol based on chemical and...

journal_title：Phytochemistry

authors： Ito A,Yasumoto K,Kasai R,Yamasaki K

更新日期：1994-08-01 00:00:00

abstract：:Callus tissue cultures induced from an axenic leaf of Eriobotrya japonica (Rosaceae) produced triterpenes in large amounts (ca. 50 mg/g dry wt). Nine triterpenes were characterized as ursolic acid, oleanolic acid, 2alpha-hydoxyursolic acid, maslinic acid, tormentic acid, 2alpha, 19alpha-dihydroxy-3-oxo-urs-12-en-28-oi...

journal_title：Phytochemistry

authors： Taniguchi S,Imayoshi Y,Kobayashi E,Takamatsu Y,Ito H,Hatano T,Sakagami H,Tokuda H,Nishino H,Sugita D,Shimura S,Yoshida T

更新日期：2002-02-01 00:00:00

abstract：:Five pregnane glycosides were isolated from Caralluma tuberculata (1-5), in addition to a known one (russelioside E, 6). The structures of the isolated compounds were elucidated by the analysis of NMR data and FAB-MS experiments. All the isolated compounds were tested for their antimalarial and antitrypanosomal activi...

journal_title：Phytochemistry

authors： Abdel-Sattar E,Harraz FM,Al-ansari SM,El-Mekkawy S,Ichino C,Kiyohara H,Ishiyama A,Otoguro K,Omura S,Yamada H

更新日期：2008-08-01 00:00:00

abstract：:Glucosinolates (GLs) present in root, seed, and leaf extracts of Pentadiplandra brazzeana Baillon were characterized and quantified according to the ISO 9167-1 method based on the HPLC analysis of desulfo-GLs. The analyses were complemented by GC-MS analyses of the isothiocyanates (ITCs) generated from GL degradation ...

journal_title：Phytochemistry

authors： De Nicola GR,Nyegue M,Montaut S,Iori R,Menut C,Tatibouët A,Rollin P,Ndoyé C,Zollo PH

更新日期：2012-01-01 00:00:00

abstract：:Withania somnifera (L.) Dunal (Solanaceae), commonly known as Ashwagandha, is one of the most valued Indian medicinal plant with several pharmaceutical and nutraceutical applications. Metabolic profiling was performed by GC-MS and NMR spectroscopy on the fruits obtained from four chemotypes of W. somnifera. A combinat...

journal_title：Phytochemistry

authors： Bhatia A,Bharti SK,Tewari SK,Sidhu OP,Roy R

更新日期：2013-09-01 00:00:00

abstract：:Bioassay-directed fractionation of an ethyl acetate extract from cultures of the fungus Malbranchea aurantiaca led to the isolation of two phytotoxic compounds, namely, 1-hydroxy-2-oxoeremophil-1(10),7(11),8(9)-trien-12(8)-olide (1) and penicillic acid (2). The structure of 1 was established by spectroscopic and X-ray...

journal_title：Phytochemistry

authors： Martínez-Luis S,González MC,Ulloa M,Mata R

更新日期：2005-05-01 00:00:00