Corynanthean, eburnan, secoleuconoxine, and pauciflorine alkaloids from Kopsia pauciflora.

abstract：:Two bitter stigmastane derivatives, vernoguinosterol (1) and vernoguinoside (2), have been isolated from the stem bark of Vernonia guineensis and their structures eludicated using spectroscopic methods. The new compounds exhibit trypanocidal activity. ...

journal_title：Phytochemistry

authors： Tchinda AT,Tsopmo A,Tane P,Ayafor JF,Connolly JD,Sterner O

更新日期：2002-02-01 00:00:00

abstract：:Eleven previously undescribed flavonoid glycosides, named cleomesides C-M, along with five known compounds, were isolated from the aerial parts of Cleome chelidonii L.f. (Cleomaceae). All flavonol glycosides were esterified derivatives of 3,7-O-diglycosides of quercetin or kaempferol. Their structures were elucidated ...

journal_title：Phytochemistry

authors： Nguyen PD,Sayagh C,Borie N,Lavaud C

更新日期：2017-10-01 00:00:00

abstract：:Plant mitochondria can use L-malate and fumarate, which accumulate in large levels, as respiratory substrates. In part, this property is due to the presence of NAD-dependent malic enzymes (NAD-ME) with particular biochemical characteristics. Arabidopsis NAD-ME1 exhibits a non-hyperbolic behavior for the substrate L-ma...

journal_title：Phytochemistry

authors： Tronconi MA,Wheeler MC,Martinatto A,Zubimendi JP,Andreo CS,Drincovich MF

更新日期：2015-03-01 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：:The glycosylation of lipophilic small molecules produces many important plant secondary metabolites. The majority of these are O-glycosides with relatively fewer occurring as glucose esters of aromatic or aliphatic acids. In particular, monoterpene acid glucose esters have much lower structural diversity and distribut...

journal_title：Phytochemistry

authors： Goodger JQ,Woodrow IE

更新日期：2011-12-01 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：:Five tirucallane-type triterpenes were isolated along with nine known triterpenes from the bark of Juliania adstringens. The structures of the five triterpenes were determined by analysis of their 1H and 13C NMR and mass spectral data, and each compound exhibited growth inhibitory activity against leukemia cells (L-12...

journal_title：Phytochemistry

authors： Makino M,Motegi T,Fujimoto Y

更新日期：2004-04-01 00:00:00

abstract：:The flavonoid rich grain of buckwheat (Fagopyrum esculentum Moench, Fam. Polygonaceae) is of high nutritional value. With the aim to improve its agronomic productivity, cultivars were crossed with the wild species F. homotropicum which, however, differs in its flavonoid content. The intention of this work was to deter...

journal_title：Phytochemistry

authors： Olschläger C,Regos I,Zeller FJ,Treutter D

更新日期：2008-04-01 00:00:00

abstract：:Two indole-alkaloid isoprenoids were isolated from extracts of Penicillium crustosum Thom grown on rice. Their structures were elucidated on the basis of various NMR experiments and by comparison to the structurally related penitrems. The two compounds, designated thomitrem A and thomitrem E, contain a 18(19)-double b...

journal_title：Phytochemistry

authors： Rundberget T,Wilkins AL

更新日期：2002-12-01 00:00:00

abstract：:Our continuous search for phytoalexins from crucifers led us to examine phytoalexin production in florets of cauliflower (Brassica oleracea var. botrytis) under abiotic (UV light) elicitation. Four known (isalexin, S-(-)-spirobrassinin, 1-methoxybrassitin, brassicanal C) and three new (caulilexins A-C) phytoalexins we...

journal_title：Phytochemistry

authors： Pedras MS,Sarwar MG,Suchy M,Adio AM

更新日期：2006-07-01 00:00:00

abstract：:The new triterpene Delta1-lupenone (1), together with lupeol, beta-amyrin and betulin were isolated from the wood of Byrsonima microphylla (Malpighiaceae). The new compounds 3-hydroxy-2-methoxy-8,8,10-trimethyl-8H-antracen-1,4,5-trione (2), 3,7-dihydroxy-2-methoxy-8,8,10-trimethyl-7,8-dihydro-6H-antracen-1,4,5-trione ...

journal_title：Phytochemistry

authors： Aguiar RM,David JP,David JM

更新日期：2005-10-01 00:00:00

abstract：:The effects of sewage sludges were investigated on the symbiotic interactions between the model plant Medicago truncatula and the arbuscular mycorrhizal fungus Glomus mosseae or the rhizobial bacteria Sinorhizobium meliloti. By comparison to a control sludge showing positive effects on plant growth and root symbioses,...

journal_title：Phytochemistry

authors： Bestel-Corre G,Gianinazzi S,Dumas-Gaudot E

更新日期：2004-06-01 00:00:00

abstract：:The hypersensitive response (HR), elicited when resistant hosts are infected by incompatible races of biotrophic fungi, has been researched extensively. New studies on host responses to necrotrophic fungi are beginning to show that when the HR occurs in hosts colonized by necrotrophs, fungal growth is accelerated rath...

journal_title：Phytochemistry

authors： Mayer AM,Staples RC,Gil-ad NL

更新日期：2001-09-01 00:00:00

abstract：:The nematicidal 5-pentyl-2-furaldehyde and the cytotoxic sesquiterpene dermatolactone were isolated from the extracts of an Ascomycete belonging to the Dermateaceae. The furan has previously been reported from the Basidiomycete Irpex lacteus, while dermatolactone is a new compound the structure of which was determined...

journal_title：Phytochemistry

authors： Mayer A,Köpke B,Anke H,Sterner O

更新日期：1996-09-01 00:00:00

abstract：:The challenges and opportunities for protecting agricultural production of food and other materials will be met through exploiting the induction of defence pathways in plants to control pests, diseases and weeds. These approaches will involve processes that can be activated by application of natural products, patented...

journal_title：Phytochemistry

authors： Pickett JA,Birkett MA,Bruce TJ,Chamberlain K,Gordon-Weeks R,Matthes MC,Napier JA,Smart LE,Woodcock CM

更新日期：2007-11-01 00:00:00

abstract：:Five phenylpropanoid esters of sucrose glycosides, trivially named smiglasides A-E, were isolated from the rhizomes of Smilax glabra. Their structures were elucidated on the basis of spectroscopic studies. ...

journal_title：Phytochemistry

authors： Chen T,Li JX,Xu Q

更新日期：2000-04-01 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：:Three-day-old soybean (Glycine max) seedlings were exposed to 0.4 M sorbitol solution for 4 h to induce amidinotransferase activity, with the corresponding enzyme being purified to homogeneity by chromatographic separation on DEAE-Sephacel, Sephacryl S-300 and L-arginine Sepharose 4B. The purified enzyme used L-argini...

journal_title：Phytochemistry

authors： Lee GT,Kim WJ,Cho YD

更新日期：2002-12-01 00:00:00

abstract：:Examination of the bulbs of Bessera elegans (Liliaceae) led to isolation of nine new and five known steroidal glycosides. The structures of the nine compounds were determined based on the results of spectroscopic analysis, including two-dimensional NMR, and hydrolysis followed by chromatographic and spectroscopic anal...

journal_title：Phytochemistry

authors： Matsuo Y,Akagi N,Hashimoto C,Tachikawa F,Mimaki Y

更新日期：2013-12-01 00:00:00

abstract：:Skeletonema marinoi produces 2,4-heptadienal, 2,4-octadienal, and 2,4,7-octatrienal, the latter only in traces. In nutrient-replete cultures, the production of potentially defensive polyunsaturated aldehydes (PUA) increases from the exponential to the stationary phase of growth from 1.2 fmol cell(-1) (+/-0.4 fmol cell...

journal_title：Phytochemistry

authors： Ribalet F,Wichard T,Pohnert G,Ianora A,Miralto A,Casotti R

更新日期：2007-08-01 00:00:00

abstract：:Lignin, a complex phenylpropanoid compound, is polymerized from the monolignols p-coumaryl alcohol, coniferyl alcohol and sinapyl alcohol. These three monolignols differ only by the 3- and 5-methoxyl groups. Therefore, enzymatic reactions controlling the methylations of the 3- and 5-hydroxyls of monolignol precursors ...

journal_title：Phytochemistry

authors： Ye ZH,Zhong R,Morrison WH 3rd,Himmelsbach DS

更新日期：2001-08-01 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：:In plant terpene biosynthesis, oxidation of the hydrocarbon backbone produced by terpene synthases is typically carried out by cytochrome P450 oxygenases (CYPs). The modifications introduced by CYPs include hydroxylations, sequential oxidations at one position and ring rearrangements and closures. These reactions sign...

journal_title：Phytochemistry

authors： Bathe U,Tissier A

更新日期：2019-05-01 00:00:00

abstract：:Black aspergilli are distributed worldwide and represent one of the most prolific sources of metabolites with biomedical and agrochemical interests. However, due to their similar morphological characteristics and insufficient molecular identification, the taxonomic classification of black aspergilli remains ill-define...

journal_title：Phytochemistry

authors： Xu C,Xu K,Yuan XL,Ren GW,Wang XQ,Li W,Deng N,Wang XF,Zhang P

更新日期：2020-08-01 00:00:00

abstract：:Proanthocyanidins (PACs) are natural plant-derived polymers used in leather tanning, wood adhesives, water purification, and mud additives for oil drilling. Quebracho (Schinopsis lorentzii and Schinopsis balansae) heartwood and mimosa (Acacia mearnsii) bark extracts are the major industrial sources of PACs. These comm...

journal_title：Phytochemistry

authors： Venter PB,Senekal ND,Amra-Jordaan M,Bonnet SL,Van der Westhuizen JH

更新日期：2012-06-01 00:00:00

abstract：:Five p-terphenyl derivatives named thelephantins D-H (1-5) together with nine known compounds, thelephantins A-C (6-8), ganbajunin E (9), p-hydroxylbenzoic acid (10), ganbajunin C (11), thelephorin A (12), 2-O-methylatromentin (13) and atromentin (14), were isolated from the methanolic extract of fruit bodies of the T...

journal_title：Phytochemistry

authors： Ngoc Quang D,Hashimoto T,Hitaka Y,Tanaka M,Nukada M,Yamamoto I,Asakawa Y

更新日期：2003-08-01 00:00:00

abstract：:A ring-cleaved sesquiterpene, named seco-laurokamurone, four laurane-type sesquiterpenes, laurepoxyene, 3β-hydroperoxyaplysin, 3α-hydroperoxy-3-epiaplysin, and 8,10-dibromoisoaplysin, one laurokamurane-type sesquiterpene, laurokamurene D, and one bisabolane-type sesquiterpene, (5S)-5-acetoxy-β-bisabolene, have been is...

journal_title：Phytochemistry

authors： Yu XQ,He WF,Liu DQ,Feng MT,Fang Y,Wang B,Feng LH,Guo YW,Mao SC

更新日期：2014-07-01 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：:In vivo feeding experiments with [5,5-(2)H(2)]mevalonic acid lactone (MVL) and [5,5-(2)H(2)]-1-deoxy-D-xylulose (DOX) indicate that the novel mevalonate-independent 1-deoxy- D-xylulose 5-phosphate/2C-methyl- D-erythritol 4-phosphate (DOXP/MEP) pathway is the dominant metabolic route for monoterpene biosynthesis in gra...

journal_title：Phytochemistry

authors： Luan F,Wüst M

更新日期：2002-07-01 00:00:00

abstract：:Intra-specific diversity in Liularia vellerea growing in the northwestern to central Yunnan province of China was studied by chemical and genetic approaches. Samples collected in the Jianchuan, Lijiang, and Zhongdian areas contained 6,15-dioxygenated furanoeremophilanes as their major components (type A); whereas samp...

journal_title：Phytochemistry

authors： Tori M,Nakamizo H,Mihara K,Sato M,Okamoto Y,Nakashima K,Tanaka M,Saito Y,Sono M,Gong X,Shen Y,Hanai R,Kuroda C

更新日期：2008-03-01 00:00:00