Flavonol glycosides from Calotropis gigantea.

abstract：:The dicarboxylic acid malate has long been thought to play important roles in plant physiology. In addition to being a major photosynthate in C4 and CAM plants and an intermediate of the tricarboxylic acid cycle it has been proposed to play essential roles in pH regulation and important roles in pathogen response, as ...

journal_title：Phytochemistry

authors： Fernie AR,Martinoia E

更新日期：2009-05-01 00:00:00

abstract：:Eight pairs of meroterpenoid enantiomers and four achiral meroterpenoids were isolated from Rhododendron anthopogonoides Maxim. Seventeen of them, named (+)-/(-)-anthoponoids A-G, (+)-daurichromene D, and anthoponoids H and I, are undescribed compounds with structural diversity. Their structures were characterized her...

journal_title：Phytochemistry

authors： Shi Q,Li TT,Wu YM,Sun XY,Lei C,Li JY,Hou AJ

更新日期：2020-12-01 00:00:00

abstract：:A novel pyradine-derivative was isolated from the mushroom Albatrellus confluens. This compound promoted melanin synthesis by B16 melanoma cells. ...

journal_title：Phytochemistry

authors： Kawagishi H,Tanaka A,Sugiyama K,Mori H,Sakamoto H,Ishiguro Y,Kobayashi K,Uramato M

更新日期：1996-05-01 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：:An activity-guided separation for inhibitors of rat platelet 12-lipoxygenase led to the isolation of two compounds, 4-O-feruloyl-5-O-caffeoylquinic acid (IC50; 5.5 microM) and methyl 4-O-feruloyl-5-O-caffeoylquinate (IC50; 1.9 microM) from the peel of Ponkan fruit (Citrus reticulata). The complete structure of each ph...

journal_title：Phytochemistry

authors： Nogata Y,Sekiya K,Ohta H,Kusumoto K,Ishizu T

更新日期：2001-04-01 00:00:00

abstract：:Benzoxazinoids are secondary metabolites that are effective in defence and allelopathy. They are synthesised in two subfamilies of the Poaceae and sporadically found in single species of the dicots. The biosynthesis is fully elucidated in maize; here the genes encoding the enzymes of the pathway are in physical proxim...

journal_title：Phytochemistry

authors： Frey M,Schullehner K,Dick R,Fiesselmann A,Gierl A

更新日期：2009-10-01 00:00:00

abstract：:During the search for new protein tyrosine phosphatase (PTP) 1B inhibitors, EtOH extracts from the aerial parts of Lantana camara L. (lantana) collected at Manado (Indonesia) and two subtropical islands in Japan (Ishigaki and Iriomote Islands, Okinawa) exhibited potent inhibitory activities against PTP1B in an enzyme ...

journal_title：Phytochemistry

authors： Abdjul DB,Yamazaki H,Maarisit W,Rotinsulu H,Wewengkang DS,Sumilat DA,Kapojos MM,Losung F,Ukai K,Namikoshi M

更新日期：2017-12-01 00:00:00

abstract：:Two new triterpenoid glycosides, quinovic acid-3 beta-O-beta-D- glucopyranosyl-(1-->4)-alpha-L-rhamnopyranoside and quinovic acid-3 beta-O-beta-D-glucopyranosyl-(1-->3)-beta-D-fucopyranoside (named rubelloside A and B, respectively), were isolated from roots of Adina rubella. Their structures were elucidated by spectr...

journal_title：Phytochemistry

authors： Fang SY,He ZS,Gao JH,Wang P

更新日期：1995-07-01 00:00:00

abstract：:Aglaia argentea leaves yielded three new cycloartanes: argenteanones A and B, and argenteanol. The first two possess cytotoxic activity against KB cells (IC50 7.5 micrograms ml-1 and 6.5 micrograms ml-1 respectively). Structural elucidation was done by two-dimensional NMR spectroscopy. ...

journal_title：Phytochemistry

authors： Omobuwajo OR,Martin MT,Perromat G,Sevenet T,Awang K,Païs M

更新日期：1996-03-01 00:00:00

abstract：:Cinnamyl alcohol dehydrogenase (CAD) (EC 1.1.1.195) from a dicot, Aralia cordata, was purified to homogeneity and its properties were characterized. The enzyme shows a preference for cinnamyl alcohols and cinnamyl aldehydes as substrates. The M(r) is estimated at 72,000. The enzyme is composed of two heterogeneous sub...

journal_title：Phytochemistry

authors： Hibino T,Shibata D,Umezawa T,Higuchi T

更新日期：1993-02-01 00:00:00

abstract：:The genuine major benzylisoquinoline alkaloid occurring in the traditional medicinal plant greater celandine (Chelidonium majus L.) is 13,14-dihydrocoptisine and not - as described previously - coptisine. Structure of 13,14-dihydrocoptisine was elucidated. The discrepancy between the alkaloid pattern of the living pla...

journal_title：Phytochemistry

authors： Paulsen J,Yahyazadeh M,Hänsel S,Kleinwächter M,Ibrom K,Selmar D

更新日期：2015-03-01 00:00:00

abstract：:The genome of Brachypodium distachyon, also known as purple false brome, was fully sequenced in 2008 largely in response to the demand for a model plant for temperate grasses. A comparative study of the primary cell walls of seedlings of B. distachyon, Hordeum vulgare and Triticum aestivum was carried out. The cell wa...

journal_title：Phytochemistry

authors： Christensen U,Alonso-Simon A,Scheller HV,Willats WG,Harholt J

更新日期：2010-01-01 00:00:00

abstract：:Root fluorescence is a phenomenon in which roots of seedlings fluoresce when irradiated with ultraviolet (UV) light. Soybean (Glycine max) and rye grass (Elymus glaucus) are the only plant species that have been reported to exhibit this occurrence in germinating seedling roots. The trait has been useful as a marker in...

journal_title：Phytochemistry

authors： Bais HP,Park SW,Stermitz FR,Halligan KM,Vivanco JM

更新日期：2002-11-01 00:00:00

abstract：:Telomeres are nucleoprotein structures ensuring the stability of eukaryotic chromosome ends. Two protein families, TRFL (TFL-Like) and SMH (Single-Myb-Histone), containing a specific telobox motif in their Myb domain, have been identified as potential candidates involved in a functional nucleoprotein structure analogo...

journal_title：Phytochemistry

authors： Mozgová I,Schrumpfová PP,Hofr C,Fajkus J

更新日期：2008-06-01 00:00:00

abstract：:Chemical investigation of a sample of propolis originating from North-Western Cameroon led to the isolation of thirteen alk(en)ylphenols (1-13) (inseparable mixture) along with α-amyrin (14), β-amyrin (15), lupeol (16), cycloartenol (17), mangiferonic acid (18), ambonic acid (19), mangiferolic acid (20), ambolic acid ...

journal_title：Phytochemistry

authors： Kardar MN,Zhang T,Coxon GD,Watson DG,Fearnley J,Seidel V

更新日期：2014-10-01 00:00:00

abstract：:Bioguided-fractionation of an acetone extract of the roots of Salvia cilicica (Lamiaceae) led to isolation of two new diterpenes, 7-hydroxy-12-methoxy-20-nor-abieta-1,5(10),7,9,12-pentaen-6,14-dione and abieta-8,12-dien-11,14-dione (12-deoxy-royleanone), together with oleanolic acid, ursolic acid, ferruginol, inuroyol...

journal_title：Phytochemistry

authors： Tan N,Kaloga M,Radtke OA,Kiderlen AF,Oksüz S,Ulubelen A,Kolodziej H

更新日期：2002-12-01 00:00:00

abstract：:Two new flavanone glycosides, alhagitin and alhagidin, have been isolated from the whole plant of Alhagi pseudalhagi and their structures established respectively as naringenin 5-methyl ether 4'-glucoside and hesperitin 7-galactosyl(1-->2)[rhamnosyl(1-->6)]glucoside by chemical and spectroscopic methods. ...

journal_title：Phytochemistry

authors： Singh VP,Yadav B,Pandey VB

更新日期：1999-06-01 00:00:00

abstract：:A new sweet triterpene glycoside, periandrin V, was isolated from the roots of Periandra dulcis and identified as 3 beta-O-[beta-D-xylopyranosyl-(1-->2)-beta-D-glucuronopyranosyl]-25 -al-olean-18(19)-en-30-oic acid on the basis of chemical and spectral evidence. The structure of an acid-rearranged product of periandri...

journal_title：Phytochemistry

authors： Suttisri R,Chung MS,Kinghorn AD,Sticher O,Hashimoto Y

更新日期：1993-09-01 00:00:00

abstract：:A project to investigate the supramolecular structure of photosystems was initiated, which is based on protein solubilizations by digitonin, protein separations by Blue native (BN)-polyacrylamide gel electrophoresis (PAGE) and protein identifications by mass spectrometry (MS). Under the conditions applied, nine photos...

journal_title：Phytochemistry

authors： Heinemeyer J,Eubel H,Wehmhöner D,Jänsch L,Braun HP

更新日期：2004-06-01 00:00:00

abstract：:A phytochemical study of the asteraceous herb Pulicaria crispa (Forssk.) Oliv. resulted in the characterisation of three guaianolide sesquiterpenes, 2alpha,4alpha-dihydroxy-7alphaH,8alphaH,10alphaH-guaia-1(5),11(13)-dien-8beta,12-olide (1), 1alpha,2alpha-epoxy-4beta-hydroxy-5alphaH,7alphaH,8alphaH,10alphaH-guaia-11(13...

journal_title：Phytochemistry

authors： Stavri M,Mathew KT,Gordon A,Shnyder SD,Falconer RA,Gibbons S

更新日期：2008-06-01 00:00:00

abstract：:Plant growth and developmental processes as well as environmental responses require the action and cross talk of phytohormones including auxins and cytokinins. Active phytohormones are changed into multiple forms by acylation, esterification or glycosylation, for example. It seems that conjugated compounds could serve...

journal_title：Phytochemistry

authors： Bajguz A,Piotrowska A

更新日期：2009-05-01 00:00:00

abstract：:Three acylated flavonol glycosides have been identified from leaves of Planchonia grandis Ridley. They possess kaempferol as aglycone and two triglycosidic chains substituting hydroxyl groups at the 3- and 7-positions. The first glycosidic unit of each chain is esterified by a cis or trans p-coumaric acid. Structural ...

journal_title：Phytochemistry

authors： Crublet ML,Long C,Sévenet T,Hadi HA,Lavaud C

更新日期：2003-09-01 00:00:00

abstract：:The stimulation of the plant response to pathogen attack by the application of resistance inducers, called elicitors, could represent an environmentally and commercially viable alternative or complement to existing pathogen control methods. In this work, the elicitor chitosan was sprayed on grape (Vitus vinifera L.) b...

journal_title：Phytochemistry

authors： Lucini L,Baccolo G,Rouphael Y,Colla G,Bavaresco L,Trevisan M

更新日期：2018-12-01 00:00:00

abstract：:The ether extract of the Chilean liverwort Lepicolea ochroleuca yielded three sesquiterpenoids, ent-4 beta-Hydroxy-10 alpha-methoxyaromadendrane, ent-3 beta-Hydroxyspathulenol, and 1,10-Dioxotayloriane, as minor components. The major components were ledol and 13-epi-neoverrucosan-5 beta-ol, four other minor fusicoccan...

journal_title：Phytochemistry

authors： Liu HJ,Wu CL,Becker H,Zapp J

更新日期：2000-04-01 00:00:00

abstract：:We investigated impacts of early and mild biotic stress on Biogenic Volatile Organic Compounds (BVOC) emissions from tomato in order to test their potential for early (biotic) stress detection. Tomato plants were exposed to two common fungal pathogens, Botrytis cinerea and Oidium neolycopesici and the sap-sucking aphi...

journal_title：Phytochemistry

authors： Kasal-Slavik T,Eschweiler J,Kleist E,Mumm R,Goldbach HE,Schouten A,Wildt J

更新日期：2017-12-01 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：:In plants, it has been proposed that hexacoordinate (class 1) non-symbiotic Hbs (nsHb-1) function in vivo as peroxidases. However, little is known about peroxidase activity of nsHb-1. We evaluated the peroxidase activity of rice recombinant Hb1 (a nsHb-1) by using the guaiacol/H2O2 system at pH 6.0 and compared it to ...

journal_title：Phytochemistry

authors： Violante-Mota F,Tellechea E,Moran JF,Sarath G,Arredondo-Peter R

更新日期：2010-01-01 00:00:00

abstract：:(-)-Sabinene is the major monoterpene produced by a European strain of the liverwort Conocephalum conicum. A cell-free extract from in vitro cultured plants catalysed the cyclization of geranyl diphosphate to sabinene. The responsible monoterpene cyclase was partially purified and characterized as an operationally sol...

journal_title：Phytochemistry

authors： Adam KP,Croteau R

更新日期：1998-09-01 00:00:00

abstract：:Four new xanthones have been isolated from the roots of Hypericum roeperanum. Their structures have been established by a combination of spectroscopic and chemical methods as 1,6-dihydroxy-5-methoxy-4',5'-dihydro-4',4',5'-trimethylfurano- (2',3':3,4)-xanthone (5-O-methyl-2-deprenylrheediaxanthone B), 1,6-dihydroxy-5-m...

journal_title：Phytochemistry

authors： Rath G,Potterat O,Mavi S,Hostettmann K

更新日期：1996-09-01 00:00:00

abstract：:Three mature Eucalyptus globulus trees with 40 years of age were studied at three height levels (0%, 35%, and 60% of total tree height) and at three radial regions (sapwood, inner and outer heartwood). The composition of lipophilic extracts was evaluated and an extensive list of 202 compounds was reported for the firs...

journal_title：Phytochemistry

authors： Gominho J,Lourenço A,Marques AV,Pereira H

更新日期：2020-12-01 00:00:00