A chlorinated coumarinolignan from the African medicinal plant, Mondia whitei.

abstract：:The methanolic extract from the flower buds of Prunus mume, cultivated in Zhejiang Province, China, showed an inhibitory effect on melanogenesis in theophylline-stimulated B16 melanoma 4A5 cells. From the methanolic extract, five acylated sucroses, mumeoses A-E, and three acylated quinic acid analogs, 5-O-(E)-p-coumar...

journal_title：Phytochemistry

authors： Nakamura S,Fujimoto K,Matsumoto T,Nakashima S,Ohta T,Ogawa K,Matsuda H,Yoshikawa M

更新日期：2013-08-01 00:00:00

abstract：:In the course of our screening for new bioactive natural products, a culture of Hypoxylon rickii, a xylariaceous ascomycete collected from the Caribbean island Martinique, was identified as extraordinary prolific producer of secondary metabolites. Ten metabolites of terpenoid origin were isolated from submerged cultur...

journal_title：Phytochemistry

authors： Kuhnert E,Surup F,Wiebach V,Bernecker S,Stadler M

更新日期：2015-09-01 00:00:00

abstract：:S-limonene synthase is a model monoterpene synthase that cyclizes geranyl pyrophosphate (GPP) to form S-limonene. It is a relatively specific enzyme as the majority of its products are composed of limonene. In this study, we converted it to pinene or phellandrene synthases after introducing N345A/L423A/S454A or N345I ...

journal_title：Phytochemistry

authors： Xu J,Ai Y,Wang J,Xu J,Zhang Y,Yang D

更新日期：2017-05-01 00:00:00

abstract：:Silene species are known for their use in traditional medicine in treating several diseases. To the authors' knowledge there is no report on the chemical composition of S. odontopetala. Therefore, the phytochemical investigation of the methanol extract of S. odontopetala was carried out, leading to the isolation of si...

journal_title：Phytochemistry

authors： Ün RN,Masullo M,Karayildirim T,Nalbantsoy A,Alankus O,Piacente S

更新日期：2020-08-01 00:00:00

abstract：:From the dried roots of Cephaelis acuminata, five tetrahydroisoquinoline-monoterpene glycosides, 2-O-beta-D-glucopyranosyldemethylalangiside, demethylisoalangiside, 6"-O-beta-D-glucopyranosylipecoside, 6"-O-alpha-D-glucopyranosylipecoside and (4R)-4-hydroxyipecoside, were isolated. The structures of these glycosides w...

journal_title：Phytochemistry

authors： Itoh A,Baba Y,Tanahashi T,Nagakura N

更新日期：2002-01-01 00:00:00

abstract：:An in vitro aggregation of washed lutoid membrane and rubber particles, respectively, prepared from the bottom (lutoid) fraction and rubber layer of centrifuged fresh latex, leading to the formation of rubber coagulum necessary for a latex coagulation was demonstrated. A Triton X-100 extract of washed lutoid membrane ...

journal_title：Phytochemistry

authors： Wititsuwannakul R,Pasitkul P,Kanokwiroon K,Wititsuwannakul D

更新日期：2008-01-01 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：:In order to determine how plant uptake of a sulfur-rich secondary metabolite, sinalbin, affects the metabolic profile of sulfur-deficient plants, gas chromatography time-of-flight mass spectrometry (GC-TOF-MS), in combination with liquid chromatography-mass spectrometry (LC-MS), was used to survey the metabolome of Ar...

journal_title：Phytochemistry

authors： Zhang J,Sun X,Zhang Z,Ni Y,Zhang Q,Liang X,Xiao H,Chen J,Tokuhisa JG

更新日期：2011-10-01 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：:Plants perceive biotic stimuli by recognising a multitude of different signalling compounds originating from the interacting organisms. Some of these substances represent pathogen-associated molecular patterns, which act as general elicitors of defence reactions. But also beneficial microorganisms like rhizobia take a...

journal_title：Phytochemistry

authors： Leitner M,Kaiser R,Rasmussen MO,Driguez H,Boland W,Mithöfer A

更新日期：2008-07-01 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：:In addition to lotaustralin and linamarin, a novel cyanogenic glycoside, 2-((6-O-(beta-D-apiofuranosyl)-beta-D-glucopyranosyl)oxy)-2-met hylbutanenitrile , two novel non-cyanogenic glycosides, (2S)-((6-O-(beta-D-apiofuranosyl)-beta-D- glucopyranosyl)oxy)butane and 2-((6-O-(beta-D-apiofuranosyl)-beta-D-glucopyranosyl)o...

journal_title：Phytochemistry

authors： Prawat H,Mahidol C,Ruchirawat S,Prawat U,Tuntiwachwut-tikul P,Tooptakong U,Taylor WC,Pakawatchai C,Skeleton BW,White AH

更新日期：1995-11-01 00:00:00

abstract：:Terpene synthases (TPS) require divalent metal ion co-factors, typically magnesium, that are bound by a canonical DDXXD motif, as well as a putative second, seemingly less well conserved and understood (N/D)DXX(S/T)XXXE motif. Given the role of the Ser/Thr side chain hydroxyl group in ligating one of the three catalyt...

journal_title：Phytochemistry

authors： Zhou K,Peters RJ

更新日期：2009-02-01 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：:The alkaloids, dechloroacutumidine and 1-epidechloroacutumine, together with three known alkaloids, acutumidine, acutumine, and dechloroacutumine, were isolated from the rhizomes of Menispermum dauricum and their structures established by spectral and chemical methods. The cytotoxicity of each compound against the gro...

journal_title：Phytochemistry

authors： Yu BW,Chen JY,Wang YP,Cheng KF,Li XY,Qin GW

更新日期：2002-10-01 00:00:00

abstract：:The multitude of terpene carbon skeletons in plants is formed by enzymes known as terpene synthases. This review covers the monoterpene and sesquiterpene synthases presenting an up-to-date list of enzymes reported and evidence for their ability to form multiple products. The reaction mechanisms of these enzyme classes...

journal_title：Phytochemistry

authors： Degenhardt J,Köllner TG,Gershenzon J

更新日期：2009-10-01 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：:Characteristic for cruciferous plants is the synthesis of a complex array of defence-related indolic compounds. In Arabidopsis, these include indol-3-ylmethyl glucosinolates (IMGs), as well as stress-inducible indole-3-carbaldehyde (ICHO)/indole-3-carboxylic acid (ICOOH) derivatives and camalexin. Key enzymes in the b...

journal_title：Phytochemistry

authors： Müller TM,Böttcher C,Glawischnig E

更新日期：2019-05-01 00:00:00

abstract：:An approach, using well characterized procedures, is presented that should be of general applicability for the structural elucidation of complex sugar moieties of natural products. The methods used are exemplified by the structure elucidation of a new gitogenin-based steroidal saponin that has a strong leishmanicidal ...

journal_title：Phytochemistry

authors： Plock A,Beyer G,Hiller K,Gründemann E,Krause E,Nimtz M,Wray V

更新日期：2001-06-01 00:00:00

abstract：:Four cycloartane-type saponins, kahiricosides II-V (1-4), were isolated from the aerial parts of Astragalus kahiricus of Egyptian origin. Their structures were established as 9beta,19-cyclolanost-24E-ene-3beta,6alpha,16beta,27-tetraol-3-O-beta-D-glucopyranoside, 9beta,19-cyclolanost-24E-ene-3beta,6alpha,16beta,27-tetr...

journal_title：Phytochemistry

authors： Radwan MM,El-Sebakhy NA,Asaad AM,Toaima SM,Kingston DG

更新日期：2004-11-01 00:00:00

abstract：:Seven previously undescribed polyketides, namely childinins A-G, and one previously undescribed 8,14-seco-ergosterol, namely childinasterone A, were obtained from the fruiting bodies of Daldinia childiae. Their structures and absolute configurations were established via extensive spectroscopic analyses, single-crystal...

journal_title：Phytochemistry

authors： Zhao ZZ,Chen HP,Huang Y,Zhang SB,Li ZH,Feng T,Liu JK

更新日期：2017-10-01 00:00:00

abstract：:The recently isolated pigments from Petunia integrifolia and Triteleia bridgesii present a distinct feature that sheds new light on the understanding of intramolecular copigmentation of anthocyanins. These are among the infrequent anthocyanins that naturally present a coumaric acid substituent in both cis and trans fo...

journal_title：Phytochemistry

authors： George F,Figueiredo P,Toki K,Tatsuzawa F,Saito N,Brouillard R

更新日期：2001-07-01 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：: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：:Society demands chemicals from sustainable sources. Identification of commercially important chemicals in crops increases value in biorefineries and reduces reliance on petrochemicals. Miscanthus sinensis and Miscanthus sacchariflorus are high-yielding distinct plants, which are sources of high-value chemicals and bio...

journal_title：Phytochemistry

authors： Parveen I,Wilson T,Donnison IS,Cookson AR,Hauck B,Threadgill MD

更新日期：2013-08-01 00:00:00

abstract：:Salicinoids are phenolic glycosides (PGs) characteristic of the Salicaceae and are known defenses against insect herbivory. Common examples are salicin, salicortin, tremuloidin, and tremulacin, which accumulate to high concentrations in the leaves and bark of willows and poplars. Although their biosynthetic pathway is...

journal_title：Phytochemistry

authors： Chedgy RJ,Köllner TG,Constabel CP

更新日期：2015-05-01 00:00:00

abstract：:Withania somnifera, known in India as Asghawhanda, is used traditionally to treat many medical problems including diabetes and has demonstrated therapeutic activity in various animal models as well as in diabetic patients. While much of W. somnifera's therapeutic activity is attributed to withanolides, their role in t...

journal_title：Phytochemistry

authors： Gorelick J,Rosenberg R,Smotrich A,Hanuš L,Bernstein N

更新日期：2015-08-01 00:00:00

abstract：:Five isoflavonoids, 7,4'-dihydroxy-2'-methoxy-8-(gamma,gamma-dimethylallyl)isoflav-3-ene, 4'-hydroxy-2'-methoxy-6",6"-dimethylpyran[2",3":7,8]isoflav-3-ene, 5,7,4'-trihydroxy-2'-methoxy-5'-(gamma,gamma-dimethylallyl)isoflavanone, 5,4'-dihydroxy-7,2'-dimethoxy-5'-(gamma,gamma-dimethylallyl)isoflavanone and 3,9-dihydrox...

journal_title：Phytochemistry

authors： Tanaka H,Oh-Uchi T,Etoh H,Shimizu H,Tateishi Y

更新日期：2002-08-01 00:00:00

abstract：:Myrothecium verrucaria was found to be an effective pathogen against kudzu grown in the greenhouse and the field. M. verrucaria produced large amounts of macrocyclic trichothecenes when cultured on solid rice medium, including epiroridin E (16.8 mg/g crude extract), epiisororidin E (1 mg/g), roridin E (8.7 mg/g), rori...

journal_title：Phytochemistry

authors： Abbas HK,Tak H,Boyette CD,Shier WT,Jarvis BB

更新日期：2001-09-01 00:00:00

abstract：:Four tetracyclic oxindole alkaloids, 7(R)- and 7(S)-geissoschizol oxindole (1 and 2), 7(R),16(R)- and 7(S),16(R)-19(E)-isositsirikine oxindole (3 and 4), in addition to a taberpsychine derivative, N(4)-demethyltaberpsychine (5), were isolated from the Malayan Tabernaemontana corymbosa and the structures were establish...

journal_title：Phytochemistry

authors： Lim KH,Sim KM,Tan GH,Kam TS

更新日期：2009-06-01 00:00:00