Kaempferol glycosides from Siparuna apiosyce.

abstract：:Five previously undescribed monoterpenoid indole alkaloids were isolated from the roots of Gelsemium elegans. Their structures with absolute configurations were elucidated by HRESIMS, X-ray diffraction, ECD spectra, and molecular modeling. 19,20-Epoxyhumantenine is a humantenine-type alkaloid with an epoxypropyl group...

journal_title：Phytochemistry

authors： Sun MX,Cui Y,Li Y,Meng WQ,Xu QQ,Zhao J,Lu JC,Xiao K

更新日期：2019-06-01 00:00:00

abstract：:A new triterpenoid, 22,29xi-epoxy-30-norhopane-13beta-ol (1) was isolated together with six known compounds viz., fern-9(11)-en-6alpha-ol. fern-9(11)-ene, fern-9(11)-en-25-oic acid, fern-9(11)-en-28-ol, filicenol-B, adiantone and oxidation product of fern-9(11)-en-6alpha-ol obtained as 6-oxofern-9(11)-ene from the who...

journal_title：Phytochemistry

authors： Reddy VL,Ravikanth V,Rao TP,Diwan PV,Venkateswarlu Y

更新日期：2001-01-01 00:00:00

abstract：:The twigs of Dorstenia prorepens furnished the digeranylated chalcone, 5,3'-(3,7-dimethyl-2,6-octadienyl)-3,4, 2',4'-tetrahydroxychalcone while Dorstenia zenkeri yielded the 3',4'-(3-hydroxy-2,2-dimethyldihydropyrano)-4,2'-dihydroxychalcone and a bichalcone. 4-Hydroxylonchocarpin was found in both plants. D. prorepens...

journal_title：Phytochemistry

authors： Abegaz BM,Ngadjui BT,Dongo E,Ngameni B,Nindi MN,Bezabih M

更新日期：2002-04-01 00:00:00

abstract：:The essential oil of aerial parts of Capillipedium parviflorum (family Poaceae) was obtained by hydrodistillation in 0.4% yield on dry weight basis. The oil was analysed by capillary GC and GC-MS techniques. Two new compounds from plant source 4-nonanol 51.7% and 4-undecanone 23.5% predominated in the essential oil an...

journal_title：Phytochemistry

authors： Mahmood U,Kaul VK,Acharya R

更新日期：2004-07-01 00:00:00

abstract：:Parasitic diseases continue to be a major worldwide health problem, and there is an urgent need for development of therapeutic drugs. This paper describes synthesis of dehydrodiferulic acid dilactone 1 and dehydrodisinapic acid dilactone 2 furofuran lignans by oxidative coupling of ferulic and sinapic acids, respectiv...

journal_title：Phytochemistry

authors： Pereira AC,Esperandim VR,Ferreira da Silva D,Magalhães LG,Lima TC,Nanayakkara DN,Cunha WR,Bastos JK,Andrade e Silva ML

更新日期：2014-11-01 00:00:00

abstract：:Toddaliopsins A-D, four novel 1,2,3-trioxygenated acridone alkaloids, have been isolated from the leaves of Toddaliopsis bremekampii. Toddaliopsins B-D are the first reported acridone alkaloids with substituted N-methyl groups, in the light of which the chemotaxonomic relationship of Toddaliopsis and Vepris is discuss...

journal_title：Phytochemistry

authors： Naidoo D,Coombes PH,Mulholland DA,Crouch NR,van den Bergh AJ

更新日期：2005-07-01 00:00:00

abstract：:Plants have developed a plethora of signals to interact with other organisms, finally building up a sophisticate language for communication. In this context, we investigated Salvia verticillata L. (Lamiaceae), with the primary goal to link secondary metabolites and actual biotic relationships. We specifically analysed...

journal_title：Phytochemistry

authors： Giuliani C,Ascrizzi R,Lupi D,Tassera G,Santagostini L,Giovanetti M,Flamini G,Fico G

更新日期：2018-11-01 00:00:00

abstract：:Bradyrhizobium japonicum bacteroids isolated from root nodules of soybean (Glycine max.) plants converted the gibberellin (GA) precursor [(14)C1]GA12 into several products identified by combined gas chromatography-mass spectrometry as [(14)C1]GA24, [(14)C1]GA9, [(14)C1]GA15, GA9 17-nor-16-one and unidentified products...

journal_title：Phytochemistry

authors： Méndez C,Baginsky C,Hedden P,Gong F,Carú M,Rojas MC

更新日期：2014-02-01 00:00:00

abstract：:Glucosinolates are secondary plant compounds typically found in members of the Brassicaceae and a few other plant families. Usually each plant species contains a specific subset of the ∼ 130 different glucosinolates identified to date. However, intraspecific variation in glucosinolate profiles is commonly found. Sinal...

journal_title：Phytochemistry

authors： de Graaf RM,Krosse S,Swolfs AE,te Brinke E,Prill N,Leimu R,van Galen PM,Wang Y,Aarts MG,van Dam NM

更新日期：2015-02-01 00:00:00

abstract：:Among the four cold shock domain proteins (CSDPs) identified in Arabidopsis thaliana, it has recently been shown that CSDP1 harboring seven CCHC-type zinc fingers, but not CSDP2 harboring two CCHC-type zinc fingers, function as a RNA chaperone during cold adaptation. However, the structural features relevant to this d...

journal_title：Phytochemistry

authors： Park SJ,Kwak KJ,Jung HJ,Lee HJ,Kang H

更新日期：2010-04-01 00:00:00

abstract：:The pyrrolizidine alkaloid pattern of Senecio vulgaris, infected with the obligate fungal pathogen Puccinia lagenophorae was analysed quantitatively in comparison to noninfected controls. The fungal infection did not significantly affect the plant's total PA contents and concentrations. In comparison to the controls t...

journal_title：Phytochemistry

authors： Tinney G,Theuring C,Paul N,Hartmann T

更新日期：1998-11-20 00:00:00

abstract：:The work herein presents comprehensive analyses of the cuticular wax mixtures covering the flag leaf blade and peduncle of bread wheat (Triticum aestivum) cv. Bethlehem. Overall, Gas Chromatography-Mass Spectrometry and Flame Ionization Detection revealed a wax coverage of flag leaf blades (16 μg/cm(2)) a third that o...

journal_title：Phytochemistry

authors： Racovita RC,Hen-Avivi S,Fernandez-Moreno JP,Granell A,Aharoni A,Jetter R

更新日期：2016-10-01 00:00:00

abstract：:Passiflora morifolia, which under natural conditions contains cyanohydrin glucosides linamarin, lotaustralin and epilotaustralin, converted cyclopentanecarbonitrile, 2-cyclopentenecarbonitrile and 3-methylbutanenitrile into the corresponding cyanohydrin glucosides. Turnera angustifolia, which normally produces glucosi...

journal_title：Phytochemistry

authors： Jaroszewski JW,Rasmussen AB,Rasmussen HB,Olsen CE,Jørgensen LB

更新日期：1996-06-01 00:00:00

abstract：:Four new allose-containing triterpenoid saponosides, scabriosides A, B, C and D were isolated from the roots of Scabiosa rotata. Their structures were established as 3-O-beta-D-xylopyranosyl-28-O-[beta-D-allopyranosyl (1-->6)-beta-D-glucopyranosyl]-pomolic acid, 3-O-[alpha-L-rhamnopyranosyl (1-->2)-beta-D-xylopyranosy...

journal_title：Phytochemistry

authors： Baykal T,Panayir T,Tasdemir D,Sticher O,Calis I

更新日期：1998-07-01 00:00:00

abstract：:Santolina insularis (Genn ex Fiori) Arrig. is a medicinal plant whose essential oil shows antiviral and antibacterial activities and potent and selective cytotoxic activity against the human colon carcinoma cell line. The occurrence of several chemotypes makes the taxonomic identification of S. insularis hard to achie...

journal_title：Phytochemistry

authors： Gnavi G,Bertea CM,Usai M,Maffei ME

更新日期：2010-06-01 00:00:00

abstract：:The phytohormones, auxin and ethylene, together control a wide range of physiological and developmental processes in plants. The lack of knowledge regarding how the underlying signaling processes are reflected at the protein level represents a major gap in understanding phytohormone signaling, including that mediated ...

journal_title：Phytochemistry

authors： Slade WO,Ray WK,Williams PM,Winkel BS,Helm RF

更新日期：2012-12-01 00:00:00

abstract：:Four cucurbitacins, bacobitacin A-D (1-4) as well as, a known cytotoxic, cucurbitacin E (5) together with three known phenylethanoid glycosides, monnieraside I, III and plantioside B were isolated form the aerial part of Bacopa monnieri. Their structures were elucidated on the basis of extensive spectroscopic investig...

journal_title：Phytochemistry

authors： Bhandari P,Kumar N,Singh B,Kaul VK

更新日期：2007-05-01 00:00:00

abstract：:In recent years, different classes of proteins have been reported to promote toxic effects when ingested. Type-2 ribosome-inactivating proteins (RIPs) are a group of chimeric proteins built up of an A-chain with RNA N-glycosidase activity and a B-chain with lectin activity. These proteins are thought to play a role in...

journal_title：Phytochemistry

authors： Shahidi-Noghabi S,Van Damme EJ,Smagghe G

更新日期：2008-12-01 00:00:00

abstract：:Individual leaves of the three most common chemotypes of Melaleuca alternifolia were examined both quantitatively and qualitatively for volatile constituents from the emergence of the first true leaves, through to 6-week-old tenth leaf set material. The 1,8-cineole and terpinolene chemotypes were investigated and comp...

journal_title：Phytochemistry

authors： Russell MF,Southwell IA

更新日期：2003-03-01 00:00:00

abstract：:Bispecific O-methyltransferase (OMT, EC 2.1.1.68) which catalyses the meta-specific methylation of caffeic acid and 5-hydroxyferulic acid was purified to homogeneity from the developing secondary xylem of aspen (Populus tremuloides). The enzyme was purified by conventional techniques and affinity chromatography on S-a...

journal_title：Phytochemistry

authors： Bugos RC,Chiang VL,Campbell WH

更新日期：1992-05-01 00:00:00

abstract：:The biosynthetic origin of 9-phenylphenalenones and the sequence according to which their oxygen functionalities are introduced were studied using nuclear magnetic resonance (NMR) spectroscopy and high-resolution electrospray ionization mass spectrometry (HRESIMS). (13)C-labelled precursors were administered to root c...

journal_title：Phytochemistry

authors： Munde T,Maddula RK,Svatos A,Schneider B

更新日期：2011-01-01 00:00:00

abstract：:Soluble and microsomal glutathione S-transferase activities for five model xenobiotics (nitrobenzene derivatives), two pesticidal xenobiotics (atrazine and fluorodifen), and a natural substrate (cinnamic acid), were determined in 59 different plant species and four plant cell suspension cultures. These enzyme activiti...

journal_title：Phytochemistry

authors： Pflugmacher S,Schröder P,Sandermann H Jr

更新日期：2000-06-01 00:00:00

abstract：:Gynostemma pentaphyllum is a popular functional food, and it is also used as a traditional medicine in Asia. In this study, five previously undescribed triterpenes, gypensapogenin M, gypensapogenin N, gypensapogenin O, gypensapogenin P, and gypensapogenin Q, together with five known compounds were isolated from the hy...

journal_title：Phytochemistry

authors： Zhang X,Shi G,Sun Y,Wu X,Zhao Y

更新日期：2017-12-01 00:00:00

abstract：:Two sulfur-containing compounds, (S)-2-amino-5-((R)-1-carboxy-2-((E)-3-(4-hydroxy-3-methoxyphenyl)allylthio)ethyl-amino)-5-oxopentanoic acid (1) and (S)-2-amino-5-((R)-1-(carboxymethylamino)-3-((E)-3-(4-hydroxyphenyl)allylthio)-1-oxopropan-2-ylamino)-5-oxopentanoic acid (2), and one 1H-pyrrole-2-carboxylic acid deriva...

journal_title：Phytochemistry

authors： Zheng ZP,Ma J,Cheng KW,Chao J,Zhu Q,Chang RC,Zhao M,Lin ZX,Wang M

更新日期：2010-12-01 00:00:00

abstract：:Three undescribed aporphine alkaloids laurodionine B (1), illigerine A (2), and N-formyl-laurolitsine (3) were isolated from the methanolic extracts of the Chinese medicinal plant, Illigera aromatica, together with three known analogues (4-6). The chemical structures of 1-6 were identified by spectroscopic methods inc...

journal_title：Phytochemistry

authors： Ge YC,Zhang HJ,Wang KW,Fan XF

更新日期：2018-10-01 00:00:00

abstract：:We reported previously that a recombinant salicylic acid (SA) glucosyltransferase1 (AtSGT1) from Arabidopsis thaliana catalyzes the formation of both SA 2-O-beta-D-glucoside (SAG) and the glucose ester of SA (SGE). Here, transgenic Arabidopsis plants overexpressing AtSGT1 have been constructed, and their phenotypes an...

journal_title：Phytochemistry

authors： Song JT,Koo YJ,Seo HS,Kim MC,Choi YD,Kim JH

更新日期：2008-03-01 00:00:00

abstract：:Evidence is presented for the presence of xylogalacturonan (XGA) in Arabidopsis thaliana. This evidence was obtained by extraction of pectin from the seeds, root, stem, young leaves and mature leaves of A. thaliana, followed by treatment of these pectin extracts with xylogalacturonan hydrolase (XGH). Upon enzymatic tr...

journal_title：Phytochemistry

authors： Zandleven J,Sørensen SO,Harholt J,Beldman G,Schols HA,Scheller HV,Voragen AJ

更新日期：2007-04-01 00:00:00

abstract：:The secondary metabolite contents and genetic profiles of six Hypericum species (H. barbatum Jacq., H. hirsutum L., H. linarioides Bosse, H. maculatum Crantz, H. rumeliacum Boiss. and H. tetrapterum Fries), collected from different locations in Serbia, have been analyzed. Methanol extracts of the aerial parts of the p...

journal_title：Phytochemistry

authors： Smelcerovic A,Verma V,Spiteller M,Ahmad SM,Puri SC,Qazi GN

更新日期：2006-01-01 00:00:00

abstract：:Procyanidins are plant secondary metabolites widely consumed and known to have various physiological functions, but their bioavailability and mechanism of action are still unclear especially for larger oligomers. One of the reasons is scarce information about the detailed structure of oligomeric procyanidins. As for a...

journal_title：Phytochemistry

authors： Nakashima S,Oda C,Masuda S,Tagashira M,Kanda T

更新日期：2012-11-01 00:00:00

abstract：:The patterns of secondary metabolites in leaves of yeast invertase-transgenic tobacco plants (Nicotiana tabacum L. cv. Samsun NN) were analyzed. Plants expressing cytosolic yeast-derived invertase (cytInv) or apoplastic (cell wall associated) yeast invertase (cwInv) showed a characteristic phytochemical phenotype comp...

journal_title：Phytochemistry

authors： Baumert A,Mock HP,Schmidt J,Herbers K,Sonnewald U,Strack D

更新日期：2001-03-01 00:00:00