Inhibitors of platelet lipoxygenase from Ponkan fruit.

abstract：:Nine cycloartane triterpenoids, including two new derivatives 22,25-dihydroxy-cycloart-23E-en-3-one and 24-methylenecycloartane-3 beta,22-diol have been isolated from leaves of Guarea macrophylla. The structures were elucidated by interpretation of spectral data, mainly 1H and 13C NMR, including bidimensional analysis...

journal_title：Phytochemistry

authors： Lago JH,Roque NF

更新日期：2002-06-01 00:00:00

abstract：:Four pairs of enantiomeric β-carboline alkaloids, (+/-)-kumudine A-D, along with their biosynthesis-related compound kumudine E, were obtained from the stems of Picrasma quassioides. Their structures, including the absolute configurations, were determined via extensive spectroscopic data combined with electronic circu...

journal_title：Phytochemistry

authors： Zhao WY,Zhou WY,Chen JJ,Yao GD,Lin B,Wang XB,Huang XX,Song SJ

更新日期：2019-03-01 00:00:00

abstract：:Cell adhesion occurs primarily at the level of middle lamella which is mainly composed by pectin polysaccharides. These can be degraded by cell wall degrading enzymes (CWDEs) during developmental processes to allow a controlled separation of plant cells. Extensive cell wall degradation by CWDEs with consequent cell se...

journal_title：Phytochemistry

authors： Lionetti V,Cervone F,De Lorenzo G

更新日期：2015-04-01 00:00:00

abstract：:Three new phenylethanoid glycoside, named scrosides A-C and a new iridoid glycosides, named picroside IV, have been isolated from the underground parts of Picrorhiza scrophulariiflora, together with 11 known compounds. Their structures were elucidated by the means of 2D NMR spectroscopy and chemical methods. ...

journal_title：Phytochemistry

authors： Li JX,Li P,Tezuka Y,Namba T,Kadota S

更新日期：1998-06-01 00:00:00

abstract：:Six new iridoids, 6-O-alpha-L-(2"-O-, 3"-O-, 4"-O-tribenzoyl)rhamnopyranosylcatalpol, 6-O-alpha-L-(2"-O-, 3"-O-dibenzoyl, 4"-O-cis-p-coumaroyl)rhamnopyranosylcatalpol, 6-O-alpha-L-(2"-O-, 3"-O-dibenzoyl, 4"-O-trans-p-coumaroyl)rhamnopyranosylcatalpol, 6-O-alpha-L-(2"-O-benzoyl, 3"-O-trans-p-coumaroyl)rhamnopyranosylca...

journal_title：Phytochemistry

authors： Helfrich E,Rimpler H

更新日期：2000-05-01 00:00:00

abstract：:The low-molar-mass (LMM) fraction, only, i.e., the GC-eluting compounds, which are mainly lignans, has been characterized in Norway spruce knotwood hydrophilic extracts previously. Of this fraction, many lignans and sesquilignans and all GC peaks supposedly representing dilignans remain unidentified. In this work, dil...

journal_title：Phytochemistry

authors： Smeds AI,Eklund PC,Willför SM

更新日期：2016-10-01 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：:[(3)H](+)-delta-Cadinene and its 8-hydroxy derivative, prepared from (1RS)-[1-(3)H]FPP by the action of one and two recombinant enzymes, respectively, were infiltrated into cotyledons of bacterial blight-resistant cotton plants as they biosynthesized sesquiterpene phytoalexins in response to infection by Xanthomonas c...

journal_title：Phytochemistry

authors： Wang YH,Davila-Huerta G,Essenberg M

更新日期：2003-09-01 00:00:00

abstract：:Hyperforin is an important antidepressant constituent of Hypericum perforatum (St. John's wort). Cell cultures of the related species H. calycinum were found to contain the homologue adhyperforin and to a low extent hyperforin, when grown in BDS medium in the dark. Adhyperforin formation paralleled cell culture growth...

journal_title：Phytochemistry

authors： Klingauf P,Beuerle T,Mellenthin A,El-Moghazy SA,Boubakir Z,Beerhues L

更新日期：2005-01-01 00:00:00

abstract：:The effects of UVB radiation on plant growth rate, gene expression and flavonoid content in wild-type, and in transgenic and mutant F3'H deficient Petunia lines have been studied for the first time. In wild-type Petunia, UVB induced an increase in total levels of flavonols and this was due to an up-regulation of sever...

journal_title：Phytochemistry

authors： Ryan KG,Swinny EE,Markham KR,Winefield C

更新日期：2002-01-01 00:00:00

abstract：:Four p-terphenyl derivatives named curtisians E-H (1-4) were isolated from the methanolic extract of fruit bodies of the Basidiomycete Paxillus curtisii by a combination of Sephadex LH-20, silica gel column chromatography and preparative reversed phase HPLC. The relative stereochemistries of the curtisians were elucid...

journal_title：Phytochemistry

authors： Quang DN,Hashimoto T,Nukada M,Yamamoto I,Tanaka M,Asakawa Y

更新日期：2003-09-01 00:00:00

abstract：:The spore-derived mycobionts of the lichen Pyrenula sp. were cultivated on a malt-yeast extract medium supplemented with 10% sucrose. The investigation of their metabolites resulted in isolation of four compounds, three isocoumarins and a biogenetically related benzofuran; their structures were determined by spectrosc...

journal_title：Phytochemistry

authors： Takenaka Y,Tanahashi T,Nagakura N,Itoh A,Hamada N

更新日期：2004-12-01 00:00:00

abstract：:Benzoxazinoids are secondary metabolites of grasses that function as natural pesticides. While many steps of DIMBOA biosynthesis have been elucidated, the mechanism of the introduction of OCH(3)-group at the C-7 position was unknown. Inhibitor experiments in Triticum aestivum and Zea mays suggest that a 2-oxoglutarate...

journal_title：Phytochemistry

authors： Frey M,Huber K,Park WJ,Sicker D,Lindberg P,Meeley RB,Simmons CR,Yalpani N,Gierl A

更新日期：2003-02-01 00:00:00

abstract：:Green tissues of spikemoss Selaginella martensii Spring possessed the complex oxylipins patterns. Major oxylipins were the products of linoleic and α-linolenic acids metabolism via the sequential action of 13-lipoxygenase and divinyl ether synthase (DES) or allene oxide synthase (AOS). AOS products were represented by...

journal_title：Phytochemistry

authors： Ogorodnikova AV,Mukhitova FK,Grechkin AN

更新日期：2015-10-01 00:00:00

abstract：:The accumulation of soluble and wall-bound phenolics and phenolic polymers in Musa acuminata roots exposed to cell wall-derived elicitor from the pathogen, Fusarium oxysporum, f.sp. cubense, race four, was investigated. The root tissue from the banana cultivar "Goldfinger" was found to respond strongly and rapidly tow...

journal_title：Phytochemistry

authors： de Ascensao AR,Dubery IA

更新日期：2003-07-01 00:00:00

abstract：:Brugmansia arborea is a woody plant species that produces tropane alkaloids (TAs). The gene encoding tropine-forming reductase or tropinone reductase I (BaTRI) in this plant species was functionally characterised. The full-length cDNA of BaTRI encoded a 272-amino-acid polypeptide that was highly similar to tropinone r...

journal_title：Phytochemistry

authors： Qiang W,Xia K,Zhang Q,Zeng J,Huang Y,Yang C,Chen M,Liu X,Lan X,Liao Z

更新日期：2016-07-01 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：:During the past two decades the study of the Myristicaceae species has increased, and many flavonoids of different types have been isolated. This review discusses the flavonoids presently known in the Myristicaceae. ...

journal_title：Phytochemistry

authors： Valderrama JC

更新日期：2000-11-01 00:00:00

abstract：:The structure of a diterpenoid, designated salvigresin, that was isolated from the aerial parts of Salvia greggii, has been confirmed by spectroscopic investigation and X-ray analysis. ...

journal_title：Phytochemistry

authors： Kawahara N,Inoue M,Kawai Ki,Sekita S,Satake M,Goda Y

更新日期：2003-08-01 00:00:00

abstract：:A new highly oxygenated triterpene named ganoderic acid alpha has been isolated from a methanol extract of the fruiting bodies of Ganoderma lucidum together with twelve known compounds. The structures of the isolated compounds were determined by spectroscopic means including 2D-NMR. Ganoderiol F and ganodermanontriol ...

journal_title：Phytochemistry

authors： el-Mekkawy S,Meselhy MR,Nakamura N,Tezuka Y,Hattori M,Kakiuchi N,Shimotohno K,Kawahata T,Otake T

更新日期：1998-11-01 00:00:00

abstract：:The triketone chemotype of manuka, Leptospermum scoparium (Myrtaceae), is commercially important because of its antimicrobial activity. Oils from 36 individual plants on the East Cape of New Zealand all showed similar high triketone contents (>20% total triketones) with little seasonal variation. Analyses of oils from...

journal_title：Phytochemistry

authors： Douglas MH,van Klink JW,Smallfield BM,Perry NB,Anderson RE,Johnstone P,Weavers RT

更新日期：2004-05-01 00:00:00

abstract：:Four undescribed 23,24-O-isopropylidene-19(18 → 17)-abeo-28-noroleanane-derived spirocyclic triterpenoids and an undescribed 28-noroleanane-derived spirocyclic triterpenoid, together with five known 28-noroleanane-derived spirocyclic triterpenoids, were isolated and identified. In addition, three undescribed iridoid g...

journal_title：Phytochemistry

authors： Le DD,Nguyen DH,Zhao BT,Kim JA,Kim SK,Min BS,Choi JS,Woo MH

更新日期：2018-09-01 00:00:00

abstract：:The unique series of C-2''-acylated C-glycosylflavones is extended by the discovery of the C-8-glucosyl derivatives 2''-O-galloylvitexin and 2''-O-galloylorientin and their C-6 analogues 2''-O-galloylisovitexin and 2''-O-galloylisoorientin, representing the first described O-galloyl-C-glycosylflavones. They are accomp...

journal_title：Phytochemistry

authors： Latté KP,Ferreira D,Venkatraman MS,Kolodziej H

更新日期：2002-02-01 00:00:00

abstract：:Vernonia sensu lato is the largest and most complex genus of the tribe Vernonieae (Asteraceae). The tribe is chemically characterized by the presence of sesquiterpene lactones and flavonoids. Over the years, several taxonomic classifications have been proposed for Vernonia s.l. and for the tribe; however, there has be...

journal_title：Phytochemistry

authors： Gallon ME,Monge M,Casoti R,Da Costa FB,Semir J,Gobbo-Neto L

更新日期：2018-06-01 00:00:00

abstract：:Two novel styrl-pyrones, (+)-garvensintriol and (+)-etharvendiol, together with a known cytotoxic furano-furone, (+)-goniofufurone, have been isolated from the stem bark of Goniothalamus arvensis. A different relative configuration, cis-erythro-erythro for garvensintriol and cis-threo-erythro for etharvendiol, is esta...

journal_title：Phytochemistry

authors： Bermejo A,Blázquez MA,Rao KS,Cortes D

更新日期：1998-04-01 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 leaves of Cyclocarya paliurus with sweet taste are often used as herbal tea in People's Republic of China. In this study eight previously undescribed seco-dammarane type triterpenoids, cyclocariols A-H along with seven known compounds were isolated and characterized from its leaves. A possible biogenetic pathway f...

journal_title：Phytochemistry

authors： Chen YJ,Na L,Fan J,Zhao J,Hussain N,Jian YQ,Yuan H,Li B,Liu B,Choudhary MI,Khan I,Wang W

更新日期：2018-01-01 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：:Triterpene saponins 1-8 were isolated from the aerial parts of Gynostemma pubescens. Among them, compounds 1-4, 8 possess carboxylic groups at both C-21 and C-29, 5 contains a carboxylic group at C-21 and an aldehyde function at C-29, whereas 6 and 7 contain carboxylic groups at C-21 and hydroxymethylene groups at C-2...

journal_title：Phytochemistry

authors： Yang Z,Chen Q,Hu L

更新日期：2007-07-01 00:00:00

abstract：:The structure of four diterpenoid glucosides, designated as salvigresides A-D (1-4), isolated from the aerial parts of Salvia greggii, have been confirmed by spectroscopic and chemical investigation. ...

journal_title：Phytochemistry

authors： Kawahara N,Tamura T,Inoue M,Hosoe T,Kawai K,Sekita S,Satake M,Goda Y

更新日期：2004-09-01 00:00:00