African Cucurbita pepo L.: properties of seed and variability in fatty acid composition of seed oil.

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：:The allene oxide cyclase (AOC) catalyzes the formation of cis-(+)-12-oxophytodienoic acid, an intermediate in jasmonate biosynthesis and is encoded by a single copy gene in tomato. The full length AOC promoter isolated by genome walk contains 3600 bp. Transgenic tomato lines carrying a 1000 bp promoter fragment and th...

journal_title：Phytochemistry

authors： Stenzel I,Hause B,Proels R,Miersch O,Oka M,Roitsch T,Wasternack C

更新日期：2008-06-01 00:00:00

abstract：:From the MeOH extract of the leaves of W. japonica, seven phenylpropanoid gentiobiosides (1-7) were isolated along with eight known phenylpropanoids (8-15). Structures of 1-7 were determined based on spectroscopic data and chemical evidence. The activity of compounds 1-15 to scavenge superoxide anion radicals was inve...

journal_title：Phytochemistry

authors： Hosoya T,Yun YS,Kunugi A

更新日期：2008-02-01 00:00:00

abstract：:Plant growth and defence are both fuelled by compounds synthesized from a common pool of carbon and nitrogen, implying the existence of a competition for carbon and nitrogen allocation to both metabolisms. The ratio of carbon to nitrogen (C:N) of an organ is often regarded as a convenient indicator of growth and quali...

journal_title：Phytochemistry

authors： Royer M,Larbat R,Le Bot J,Adamowicz S,Robin C

更新日期：2013-04-01 00:00:00

abstract：:The present article is the first comprehensive review on the chemical composition and pharmacological activities of the raw materials of Crocus species. In the present review, data on chemical constituents and pharmacological profile of Crocus sativus stigmas, as well as of other plant parts (perianth, stamens, leaves...

journal_title：Phytochemistry

authors： Mykhailenko O,Kovalyov V,Goryacha O,Ivanauskas L,Georgiyants V

更新日期：2019-06-01 00:00:00

abstract：:Nine pregnane glycosides containing peroxy functions in their sugar moieties (1-5 and 11-14), five oligosaccharides (6-10), six pregnane glycosides (15-20), and five cardiac glycosides (21-25) were isolated from the root barks of Periploca sepium Bge. (Asclepiadaceae) and the roots of Periploca forrestii Schltr. (Ascl...

journal_title：Phytochemistry

authors： Feng J,Zhang R,Zhou Y,Chen Z,Tang W,Liu Q,Zuo JP,Zhao W

更新日期：2008-11-01 00:00:00

abstract：:Reinvestigation of the fermentation broth and mycelium of the coprophilous fungus Guanomyces polythrix, grown in static conditions, led to the isolation of several phytotoxic compounds, including two new naphthopyranone derivatives, namely (2S, 3R)-5-hydroxy-6,8-dimethoxy-2,3-dimethyl-2,3-dihydro-4H-naphtho[2,3-b]-pyr...

journal_title：Phytochemistry

authors： Macías M,Gamboa A,Ulloa M,Toscano RA,Mata R

更新日期：2001-11-01 00:00:00

abstract：:Papain (EC 3.4.22.2), the archetypal cysteine protease of C1 family, is of considerable commercial significance. In order to obtain substantial quantities of active papain, the DNA coding for propapain, the papain precursor, has been cloned and expressed at a high level in Escherichia coli BL21(DE3) transformed with t...

journal_title：Phytochemistry

authors： Choudhury D,Roy S,Chakrabarti C,Biswas S,Dattagupta JK

更新日期：2009-03-01 00:00:00

abstract：:Four undescribed pyrone derivatives, pestalopyrones A-D, containing unusual tricyclic 5/6/6 polycyclic skeletons, were isolated from the ethyl acetate extract of the endophytic fungus Pestalotiopsis neglecta S3 derived from the fresh stems of Rubia podantha Diels (Rubiaceae). Their planar structures were elucidated ma...

journal_title：Phytochemistry

authors： Feng L,Han J,Wang J,Zhang AX,Miao YY,Tan NH,Wang Z

更新日期：2020-11-01 00:00:00

abstract：:Thirteen steroidal saponins were isolated from the leaves of Beaucarnea recurvata Lem. Their structures were established using one- and two-dimensional NMR spectroscopy and mass spectrometry. Six of them were identified as: 26-O-β-D-glucopyranosyl (25S)-furosta-5,20(22)-diene 1β,3β,26-triol 1-O-α-L-rhamnopyranosyl-(1→...

journal_title：Phytochemistry

authors： Eskander J,Lavaud C,Harakat D

更新日期：2011-06-01 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：:Thevetia cardiac glycosides can lead to intoxication, thus they are important indicators for forensic and pharmacologic surveys. Six thevetia cardiac glycosides, including two with unknown structures, were isolated from the seeds of the Yellow Oleander (Thevetia peruviana (Pers.) K. Shum., Apocynaceae). LC-ESI⁺-MS(/MS...

journal_title：Phytochemistry

authors： Kohls S,Scholz-Böttcher BM,Teske J,Zark P,Rullkötter J

更新日期：2012-03-01 00:00:00

abstract：:The tetrahydroanthraquinones (1S,3S)-austrocortilutein (4) and (1S,3S)-austrocortirubin (7) are octaketides formed in the fruit bodies of the fungus Dermocybe splendida via the gentiobioside 2 of the dihydroanthracenone (S)-torosachrysone (1). ...

journal_title：Phytochemistry

authors： Elsworth C,Gill M,Saubern S

更新日期：2000-09-01 00:00:00

abstract：:The hydrocarbon composition of the marine diatom Pleurosigma strigosum isolated from coastal Mediterranean sediments is described. A suite of five C(25) highly branched isoprenoid (HBI) alkenes with 2-5 double bonds were detected together with n-C(21:4) and n-C(21:5) alkenes and squalene. The analysis by (1)H and (13)...

journal_title：Phytochemistry

authors： Grossi V,Beker B,Geenevasen JA,Schouten S,Raphel D,Fontaine MF,Sinninghe Damsté JS

更新日期：2004-11-01 00:00:00

abstract：:Five pregnane glycosides were isolated from Caralluma tuberculata (1-5), in addition to a known one (russelioside E, 6). The structures of the isolated compounds were elucidated by the analysis of NMR data and FAB-MS experiments. All the isolated compounds were tested for their antimalarial and antitrypanosomal activi...

journal_title：Phytochemistry

authors： Abdel-Sattar E,Harraz FM,Al-ansari SM,El-Mekkawy S,Ichino C,Kiyohara H,Ishiyama A,Otoguro K,Omura S,Yamada H

更新日期：2008-08-01 00:00:00

abstract：:Eleven benzofuran dimers, (+)-dieupachinins A-E, (-)-dieupachinins A-E and dieupachinin F, a benzofuran trimer trieupachinin A, as well as seven known compounds were isolated from the roots of Eupatorium chinense. The enantiomers of racemates dieupachinins A-E were separated by chiral HPLC. The structures with absolut...

journal_title：Phytochemistry

authors： Wang WJ,Wang L,Liu Z,Jiang RW,Liu ZW,Li MM,Zhang QW,Dai Y,Li YL,Zhang XQ,Ye WC

更新日期：2016-02-01 00:00:00

abstract：:Ten flavonoid compounds were isolated from the dried leaves of Polygonum hydropiper L. (Laksa leaves), and identified as 3-O-alpha-L-rhamnopyranosyloxy-3',4',5,7-tetrahydroxyflavone; 3-O-beta-D-glucopyranosyloxy-4',5,7-trihydroxyflavone; 6-hydroxyapigenin; 6"-O-(3,4,5-trihydroxybenzoyl) 3-O-beta-D-glucopyranosyloxy-3'...

journal_title：Phytochemistry

authors： Peng ZF,Strack D,Baumert A,Subramaniam R,Goh NK,Chia TF,Tan SN,Chia LS

更新日期：2003-01-01 00:00:00

abstract：:Genus Leucas with about 41 species found in India, is an Asian genus with separation from its close relatives in Africa based on phylogenetic evidence. Present study represents the only comprehensive phytochemical investigation on this genus. We have analyzed the seed fatty acid compositions of 26 species and five var...

journal_title：Phytochemistry

authors： Choudhary AK,Sunojkumar P,Mishra G

更新日期：2017-11-01 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：:Three undescribed isoflavones, derriscandenon A, B, and C, together with seven known isoflavones were isolated and structurally characterized during a study of the chemical constituents in the leaves of Derris scandens (Roxb.) Benth (Leguminosae, Fabaceae) collected in Bangladesh. The inhibitory activity of the compou...

journal_title：Phytochemistry

authors： Ito C,Matsui T,Miyabe K,Hasan CM,Rashid MA,Tokuda H,Itoigawa M

更新日期：2020-07-01 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 lipid extract of the temperate red alga Rhodymenia pertusa has yielded four eicosanoid metabolites, three of which are new natural products. Using principally NMR and MS techniques, their structures were deduced as 5R,6S-dihydroxy-7(E),9(E),11(Z),14(Z)-eicosatetraenoic acid (5R,6S-diHETE), 5R*,6S*-dihydroxy-7(E),9...

journal_title：Phytochemistry

authors： Jiang ZD,Ketchum SO,Gerwick WH

更新日期：2000-01-01 00:00:00

abstract：:Although it is well known that solar ultraviolet B (UV-B) radiation enhances plant defenses, there is less knowledge about traits that define insect resistance in field-grown soybean. Here we study the effects of solar UV-B radiation on: a) the induction of phenolic compounds and trypsin proteinase inhibitors (TPI) in...

journal_title：Phytochemistry

authors： Dillon FM,Chludil HD,Zavala JA

更新日期：2017-09-01 00:00:00

abstract：:Two unusual triterpenoids, (24S)-24-methyl-25,32-cyclo-5alpha-lanosta-9(11)-en-3beta-ol and (24S)-24-methyl-25,32-cyclo-cycloartane-3beta-ol, were isolated from leaves of Pandanus boninensis along with known triterpenoids and lignans. Their structures were established on the basis of spectroscopic methods and X-ray an...

journal_title：Phytochemistry

authors： Inada A,Ikeda Y,Murata H,Inatomi Y,Nakanishi T,Bhattacharyya K,Kar T,Bocelli G,Cantoni A

更新日期：2005-12-01 00:00:00

abstract：:Chemical systematics sets out to interpret the phylogenetic implications of the occurrence and distribution of secondary metabolites. In this review, a number of the major contributions from the 1960's and 1970's are identified and re-assessed in the light of recent evidence gained from DNA studies. It is shown that f...

journal_title：Phytochemistry

authors： Waterman PG

更新日期：2007-11-01 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：:Cholestane glycosides, dioseptemlosides A (1) and B (2), together with six spirostane glycosides, dioseptemlosides C-H (3-8), were isolated from the rhizomes of Dioscorea septemloba. Their structures were established on the basis of physical data, spectroscopic analysis (HRESIMS, 1D and 2D NMR), and chemical methods. ...

journal_title：Phytochemistry

authors： Liu XT,Wang ZZ,Xiao W,Zhao HW,Hu J,Yu B

更新日期：2008-04-01 00:00:00

abstract：:Stem bark of Hippocratea excelsa afforded six pentacyclic triterpenes, five oleanane and one ursane types. They were identified as 11beta,21beta-dihydroxy-olean-12-ene-3-one (2), 3alpha,11alpha,21beta-trihydroxy-olean-12-ene (3), 3alpha,21beta-dihydroxy-11alpha-methoxy-olean-12-ene (4), 3alpha,21beta-dihydroxy-olean-9...

journal_title：Phytochemistry

authors： Cáceres-Castillo D,Mena-Rejón GJ,Cedillo-Rivera R,Quijano L

更新日期：2008-02-01 00:00:00

abstract：:Phytochemical investigation of the flowers of Inula japonica led to isolation of nine sesquiterpenoids, inujaponins A-I, as well as eighteen known ones. These sesquiterpenoids belong to six skeletal-types, including eudesmane, 1,10-seco-eudesmane, germacrane, guaiane, 4,5-seco-guaiane, and pseudoguaiane sesquiterpenoi...

journal_title：Phytochemistry

authors： Wu XD,Ding LF,Tu WC,Yang H,Su J,Peng LY,Li Y,Zhao QS

更新日期：2016-09-01 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