Unusual naphthoquinones, catechin and triterpene from Byrsonima microphylla.

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：:From the branches of Microtropis japonica (Celastraceae), nine aliphatic glucosides, named microtropins A-I, were isolated. The 6-position of glucose was esterified with (2S,3R)-2-ethyl-2,3-dihydroxybutyric acid. Microtropins A-D contained a rare natured product nitrile functional group in their aglycones. The absolut...

journal_title：Phytochemistry

authors： Uemura Y,Sugimoto S,Matsunami K,Otsuka H,Takeda Y,Kawahata M,Yamaguchi K

更新日期：2013-03-01 00:00:00

abstract：:The cell extract of a cultured terrestrial Nostoc sp. (UIC 10062), obtained from a sample collected at Grand Mere State Park in Michigan, displayed antiproliferative activity against the HT-29 human colon cancer cell line. Bioactivity-guided fractionation of the cell extract, combined with LC-MS analysis, led to the i...

journal_title：Phytochemistry

authors： Kang HS,Santarsiero BD,Kim H,Krunic A,Shen Q,Swanson SM,Chai H,Kinghorn AD,Orjala J

更新日期：2012-07-01 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：:The Arabidopsis thaliana irregular xylem4 (irx4) cinnamoyl-CoA reductase 1 (CCR1) mutant was reassessed for its purported exclusive rate-limiting or key effects on lignification. Analyses of gross growth characteristics and stem cross-section anatomy, from seedling emergence to senescence, revealed that stunted irx4 m...

journal_title：Phytochemistry

authors： Patten AM,Cardenas CL,Cochrane FC,Laskar DD,Bedgar DL,Davin LB,Lewis NG

更新日期：2005-09-01 00:00:00

abstract：:A bioassay-guided fractionation of Agave offoyana leaves led to the isolation of five steroidal saponins (1-5) along with six known saponins (6-11). The compounds were identified as (25R)-spirost-5-en-2α,3β-diol-12-one 3-O-{α-l-rhamnopyranosyl-(1→3)-O-β-d-glucopyranosyl-(1→2)-O-[β-d-xylopyranosyl-(1→3)]-O-β-d-glucopyr...

journal_title：Phytochemistry

authors： Pérez AJ,Simonet AM,Calle JM,Pecio Ł,Guerra JO,Stochmal A,Macías FA

更新日期：2014-09-01 00:00:00

abstract：:From the petroleum ether extract of the rhizomes of Tamus communis, the 7-hydroxy-2,3,4,8-tetramethoxyphenanthrene (1) was isolated, together with the known 2,3,4-trimethoxy-7,8-methylenedioxyphenanthrene (2), 3-hydroxy-2,4,-dimethoxy-7,8-methylenedioxyphenanthrene (3), 2-hydroxy-3,5,7-trimethoxyphenanthrene (4) and 2...

journal_title：Phytochemistry

authors： Kovács A,Forgo P,Zupkó I,Réthy B,Falkay G,Szabó P,Hohmann J

更新日期：2007-03-01 00:00:00

abstract：:Besides isolation and characterization of isorhamnetin-3-O-rutinoside, isorhamnetin-3-O-glucopyranoside and taraxasteryl acetate, a new flavonol trisaccharide was isolated from the aerial parts of Calotropis gigantea, and its structure was established as isorhamnetin-3-O-[2-O-beta-D-galactopyranosyl-6-O-alpha-L-rhamno...

journal_title：Phytochemistry

authors： Sen S,Sahu NP,Mahato SB

更新日期：1992-08-01 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 flavonol glycosides isolated from non-flowering leafy shoots of Iberis saxatilis (Brassicaceae) were characterised by spectroscopic and chemical methods as saxatilisins A-D, the 3-O-β-D-glucopyranosyl-(1→3)-α-L-rhamnopyranosyl-(1→2)[β-D-glucopyranosyl-(1→2)-α-L-rhamnopyranosyl-(1→6)]-β-D-glucopyranoside, 3-O-β-D-...

journal_title：Phytochemistry

authors： Prescott TA,Kite GC,Porter EA,Veitch NC

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：: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：:From the water soluble fraction of the dried fruits of Alangium lamrckii, four tetrahydroisoquinoline-monoterpene glycosides, 6-O-methyl-N-deacetylisoipecosidic acid, 7-O-methyl-N-deacetylisoipecosidic acid, 6,7-di-O-methyl-N-deacetylisoipecosidic acid and 6"-O-alpha-D-glucopyranosyl-6-O-methyl-N-deacetylisoipecosidic...

journal_title：Phytochemistry

authors： Itoh A,Tanahashi T,Tabata M,Shikata M,Kakite M,Nagai M,Nagakura N

更新日期：2001-03-01 00:00:00

abstract：:One of the most well-characterised plant pathogenic interactions involves Arabidopsis thaliana and the bacteria Pseudomonas syringae pathovar tomato (Pst). The standard Pst inoculation procedure involves infiltration of large populations of bacteria into plant leaves which means that metabolite changes cannot be readi...

journal_title：Phytochemistry

authors： Allwood JW,Clarke A,Goodacre R,Mur LA

更新日期：2010-04-01 00:00:00

abstract：:The new concept that Na/K-ATPase acts as a receptor prompted us to look for new ligands from Callicarpa kwangtungensis Chun. Using column chromatography, an undescribed phenethyl alcohol glycoside, callicarpanoside A, and an undescribed benzyl alcohol glycoside, callicarpanoside B, along with twelve known polyphenols ...

journal_title：Phytochemistry

authors： Xu Y,Jiang X,Xu J,Qu W,Xie Z,Jiang RW,Feng F

更新日期：2021-01-01 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：:Two bromophenols, together with three known compounds, were isolated from the methanolic extract of the marine alga, Rhodomela confervoides. By means of MS and NMR spectroscopic analyses, they were identified as 3-bromo-4-[2,3-dibromo-4,5-dihydroxyphenyl] methyl-5-(hydroxymethyl) 1,2-benzenediol (1) and 3-bromo-4-[2,3...

journal_title：Phytochemistry

authors： Xu N,Fan X,Yan X,Li X,Niu R,Tseng CK

更新日期：2003-04-01 00:00:00

abstract：:Two neolignan glycosides (junipercomnosides A and B) were isolated from aerial parts of Juniperus communis var. depressa along with two known neolignan glycosides and seven flavonoid glycosides. The structures of the isolated compounds were determined by spectral analysis, in particular by 2D-NMR analysis. The signifi...

journal_title：Phytochemistry

authors： Nakanishi T,Iida N,Inatomi Y,Murata H,Inada A,Murata J,Lang FA,Iinuma M,Tanaka T

更新日期：2004-01-01 00:00:00

abstract：:Psiadia arguta (Asteraceae) is endemic to the island of Mauritius in the Indian Ocean. The species is traditionally used to treat various ailments, such as its use as an expectorant or for the treatment of bronchitis and asthma. Preliminary biological screenings have displayed the antimalarial (Plasmodium falciparum) ...

journal_title：Phytochemistry

authors： Mahadeo K,Grondin I,Herbette G,Palama TL,Bouchemal N,Soulange J,Laulloo SJ,Sadeyen J,Humeau L,Frederich M,Gauvin-Bialecki A,Kodja H

更新日期：2020-08-01 00:00:00

abstract：:The dichloromethane extract from leaves of Juniperus brevifolia, through chromatographic fractionations yield six compounds: 3beta-hydroxy-abieta-8,11,13-trien-7-one, 18-hydroxy-sandaracopimara-8(14),15-dien-7-one, sandaracopimara-8(14),15-dien-18-yl formate; and the first examples of sandaracopimaranes and abieta-8,1...

journal_title：Phytochemistry

authors： Seca AM,Silva AM,Bazzocchi IL,Jimenez IA

更新日期：2008-01-01 00:00:00

abstract：:To search for bioactive gypenosides and their analogues, a saponin enriched fraction and its hydrolyzate from Gynostemma pentaphyllum were phytochemically investigated. Fractionation by diverse chromatographic methods, including HPLC, Sephadex LH-20, silica gel, and C18 reverse phase silica gel, led to the isolation a...

journal_title：Phytochemistry

authors： Wang J,Ha TKQ,Shi YP,Oh WK,Yang JL

更新日期：2018-11-01 00:00:00

abstract：:The profiles of non-volatile oxylipins of pea (Pisum sativum) seedlings were examined by gas chromatography-mass spectrometry after invitro incubation with α-linolenic acid. The 13-lipoxygenase/hydroperoxide lyase (HPL) products were predominant in the leaves, while the roots possess both 13- and 9-HPL products. Allen...

journal_title：Phytochemistry

authors： Mukhtarova LS,Mukhitova FK,Gogolev YV,Grechkin AN

更新日期：2011-04-01 00:00:00

abstract：:Three phenolic antioxidant and anti-inflammatory compounds: 7-methylaromadendrin, isoprenylhydroquinone glucoside, and 3.5-dicaffeoylquinic acid methyl ester, all isolated from Western Mediterranean Asteraceae species, have been studied for their inhibitory activity against protein carbonylation, a harmful post-transl...

journal_title：Phytochemistry

authors： Marín M,Giner RM,Recio MC,Máñez S

更新日期：2011-10-01 00:00:00

abstract：:Plants have developed defensive specialized metabolites over the course of evolution. In the genus Hordeum, which includes the important cereal crop barley, specialized metabolites such as hordatines, benzoxazinones, and gramine have been identified. Hordeum species are classified into four clades, H, Xu, Xa, and I. T...

journal_title：Phytochemistry

authors： Ube N,Nishizaka M,Ichiyanagi T,Ueno K,Taketa S,Ishihara A

更新日期：2017-09-01 00:00:00

abstract：:Lipid oxidation is a common metabolic reaction in all biological systems, appearing in developmentally regulated processes and as response to abiotic and biotic stresses. Products derived from lipid oxidation processes are collectively named oxylipins. Initial lipid oxidation may either occur by chemical reactions or ...

journal_title：Phytochemistry

authors： Andreou A,Feussner I

更新日期：2009-09-01 00:00:00

abstract：:The influence of solar irradiance and seasons on prostaglandin (PG) and arachidonic acid (AA) content in the marine red alga Gracilaria verrucosa (Huds.) Papenf. (unattached form) was investigated. PGA(2), PGE(2), PGF(2), and 15-keto-PGE(2) were isolated from the alga, quantitatively analyzed as 4-methyl-7-methoxycoum...

journal_title：Phytochemistry

authors： Imbs AB,Vologodskaya AV,Nevshupova NV,Khotimchenko SV,Titlyanov EA

更新日期：2001-12-01 00:00:00

abstract：:Six bisdesmosidic triterpenoidal saponins, gleditsiosides H-K and gleditsia saponins C' and E', were isolated from the anomalous fruits of Gleditsia sinensis. Their structures were established by a combination of extensive NMR (DEPT, DQF-COSY, HETCOR, HOHAHA, HMBC and ROESY) studies and chemical degradation. ...

journal_title：Phytochemistry

authors： Zhang Z,Koike K,Jia Z,Nikaido T,Guo D,Zheng J

更新日期：1999-10-01 00:00:00

abstract：:A 13-membered N-formylcyclopeptide alkaloid, nummularine-T, has been isolated from the bark of Zizyphus nummularia and its structure established by spectroscopic and chemical methods. It provides the fourth example of a naturally occurring N-formyl cyclopeptide alkaloid. ...

journal_title：Phytochemistry

authors： Singh B,Pandey VB

更新日期：1995-01-01 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：:Two mulinane-type diterpenoids were isolated from Azorella compacta; namely 20-hydroxymulin-11,13-dienyl acetate and 13,14-dihydroxymulin-11-en-20-oic acid. The structures were elucidated by analysis of their spectroscopic data. These compounds, as well as three previously isolated diterpenes, were evaluated as potent...

journal_title：Phytochemistry

authors： Loyola LA,Bórquez J,Morales G,San-Martín A,Darias J,Flores N,Giménez A

更新日期：2004-07-01 00:00:00