Three phenylethanoid glycosides and an iridoid glycoside from Picrorhiza scrophulariiflora.


: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.






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




Has Abstract


1998-06-01 00:00:00














  • Oxytrofalcatins A-F, N-benzoylindole analogues from the roots of Oxytropis falcata (Leguminosae).

    abstract::Indole alkaloids, oxytrofalcatins A-F (1-6), together with five other known alkaloids (7-11), were isolated from the roots of Oxytropis falcata. Their structures were elucidated by comprehensive spectroscopic analyses, including using 1D and 2D NMR spectroscopy and mass spectrometry. This is the first report of N-benz...


    pub_type: 杂志文章


    authors: Chen WH,Wu QX,Wang R,Shi YP

    更新日期:2010-06-01 00:00:00

  • Exudation of fluorescent beta-carbolines from Oxalis tuberosa L roots.

    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...


    pub_type: 杂志文章,收录出版


    authors: Bais HP,Park SW,Stermitz FR,Halligan KM,Vivanco JM

    更新日期:2002-11-01 00:00:00

  • Lignan derivatives from the liverwort Bazzania trilobata.

    abstract::Eight lignan derivatives trilobatin D-K, as well as jamesopyrone were isolated from the liverwort Bazzania trilobata. Their structures have been elucidated based on extensive NMR spectral evidence. ...


    pub_type: 杂志文章


    authors: Scher JM,Zapp J,Becker H

    更新日期:2003-03-01 00:00:00

  • The microbiological transformation of 7alpha-hydroxy-ent-kaur-16-ene derivatives by Gibberella fujikuroi.

    abstract::The biotransformation of 7alpha-hydroxy-ent-kaur-16-ene (epi-candol A) by the fungus Gibberella fujikuroi gave 7alpha,16alpha,17-trihydroxy-ent-kaur-16-ene and a seco-ring B derivative, fujenoic acid, whilst the incubation of candicandiol (7alpha,18-dihydroxy-ent-kaur-16-ene) and canditriol (7alpha,15alpha,18-trihydro...


    pub_type: 杂志文章


    authors: Fraga BM,Bressa C,González P,Guillermo R,Hernández MG,Suárez S

    更新日期:2007-06-01 00:00:00

  • Purification and characterization of a Ca(2+)-dependent protein kinase from sandalwood (Santalum album L.): evidence for Ca(2+)-induced conformational changes.

    abstract::An early development-specific soluble 55 kDa Ca(2+)-dependent protein kinase has been purified to homogeneity from sandalwood somatic embryos and biochemically characterized. The purified enzyme, swCDPK, resolved into a single band on 10% polyacrylamide gels, both under denaturing and non-denaturing conditions. swCDPK...


    pub_type: 杂志文章


    authors: Anil VS,Sankara Rao K

    更新日期:2001-09-01 00:00:00

  • Triterpenoid saponins from Dianthus chinensis.

    abstract::Two novel triterpenoid saponins, dianchinenoside C [23-O-beta-D-glucopyranosyl 3 beta, 16 alpha-dihydroxyolean-12-ene 23 alpha, 28 beta-dioic acid 28-O-beta-D-glucopyranoside] and dianchinenoside D [3 beta, 16 alpha-dihydroxyolean-12-ene 23 alpha, 28 beta-dioic acid 28-O-beta-D-glucopyranosyl [1-->6)-beta-D-glucopyran...


    pub_type: 杂志文章


    authors: Li HY,Koike K,Ohmoto T

    更新日期:1994-02-01 00:00:00

  • Allosteric substrate inhibition of Arabidopsis NAD-dependent malic enzyme 1 is released by fumarate.

    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...


    pub_type: 杂志文章


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

    更新日期:2015-03-01 00:00:00

  • Steroidal alkaloid saponins and steroidal saponins from Solanum surattense.

    abstract::A rare 16β-H steroidal alkaloid saponin (1), an avenacoside-type saponin (2), two steroidal saponins (4, 5), one revised-structure steroidal saponin (3) and six known compounds (6-11) were isolated from aerial parts of Solanum surattense Burm. f. Their structures were established on the basis of physical data, as well...


    pub_type: 杂志文章


    authors: Lu Y,Luo J,Kong L

    更新日期:2011-05-01 00:00:00

  • Relationship between chemotypic and genetic diversity of natural populations of Artemisia herba-alba Asso growing wild in Tunisia.

    abstract::A total of 80 individuals collected from eight populations growing wild in different geographic zones were considered to assess the intraspecific variability of essential oil composition, genetic diversity and population structure of Artemisia herba-alba. The essential oil composition varied significantly between popu...


    pub_type: 杂志文章


    authors: Younsi F,Rahali N,Mehdi S,Boussaid M,Messaoud C

    更新日期:2018-04-01 00:00:00

  • Enzymatic preparation of 20(S, R)-protopanaxadiol by transformation of 20(S, R)-Rg3 from black ginseng.

    abstract::20(S)-protopanaxadiol (PPD(S)) and 20(R)-protopanaxadiol (PPD(R)), the main metabolites of ginsenosides Rg3(S) and Rg3(R) in black ginseng, are potential candidates for anti-cancer therapy due to their pharmacological activities such as anti-tumor properties. In the present study, we report the preparation of PPD(S, R...


    pub_type: 杂志文章


    authors: Liu L,Zhu XM,Wang QJ,Zhang DL,Fang ZM,Wang CY,Wang Z,Sun BS,Wu H,Sung CK

    更新日期:2010-09-01 00:00:00

  • 3 alpha-hydroxy-oleanane-type triterpene glycosyl esters from leaves of Acanthopanax spinosus.

    abstract::Three novel 3 alpha-hydroxy-oleanane-type triterpene oligoglycosyl esters, spinoside C1, C4 and C5, were isolated from the leaves of Acanthopanax spinosus. The structures were established to be 28-O-alpha-L-rhamnopyranosyl(1-->4)-beta-D-glucopyranosyl (1-->6)-beta-D-glucopyranosyl esters of 3 alpha, 29-dihydroxy-olean...


    pub_type: 杂志文章


    authors: Miyakoshi M,Ida Y,Isoda S,Shoji J

    更新日期:1993-12-01 00:00:00

  • A hemiterpene glucoside as a probing deterrent of the bean aphid, Megoura crassicauda, from a non-host vetch, Vicia hirsuta.

    abstract::The bean aphid, Megoura crassicauda Mordvilko, feeds selectively on plants belonging to the genus Vicia (Fabaceae). However, it never infests the tiny vetch, V. hirsuta (L.) Gray. The aphid appeared to discriminate between host and non-host plants by tasting specific chemicals during penetration of its stylet into the...


    pub_type: 杂志文章


    authors: Ohta N,Mori N,Kuwahara Y,Nishida R

    更新日期:2006-03-01 00:00:00

  • The enzymic and chemically induced decomposition of glucosinolates.

    abstract::While the myrosinase-glucosinolate system has been reviewed in recent years by a number of authors, little attention has been paid to the enzymic and non-enzymic degradation of glucosinolates. Non-enzymic degradation processes are particularly important in the processing of brassica vegetables with respect to both fla...


    pub_type: 杂志文章,评审


    authors: Bones AM,Rossiter JT

    更新日期:2006-06-01 00:00:00

  • Bio-active maneonenes and isomaneonene from the red alga Laurencia obtusa.

    abstract::Three previously undescribed compounds, maneonenes and isomaneonene derivatives; in addition to five known compounds, two cuparene, one chamigrene, and two cis-maneonenes were isolated from the Red Sea red alga Laurencia obtusa. The chemical structures of all unknown metabolites were characterized employing spectrosco...


    pub_type: 杂志文章


    authors: Bawakid NO,Alarif WM,Ismail AI,El-Hefnawy ME,Al-Footy KO,Al-Lihaibi SS

    更新日期:2017-11-01 00:00:00

  • Tetrahydroisoquinoline-monoterpene glycosides from Cephaelis acuminata.

    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...


    pub_type: 杂志文章


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

    更新日期:2002-01-01 00:00:00

  • A arylnaphthalene lignan from Haplophyllum buxbaumii.

    abstract::Haplophyllum buxbaumii has yielded a new diphyllin glycoside, which was characterized as 4-O-{bis-alpha-L-xylopyranosyl (1-->2, 1-->5) beta-D-apiofuranosyloxy}-6,7-dimethoxy-1-(3,4-methylenedioxyphenyl)-3-hydroxymethyl naphthalene-2-carboxylic acid lactone. Taiwanin-H is also reported for the first time from a member ...


    pub_type: 杂志文章


    authors: Al-Abed Y,Abu-Zarga M,Sabri S,Atta-Ur-Rahman,Voelter W

    更新日期:1998-11-20 00:00:00

  • Identification of phenylamide phytoalexins and characterization of inducible phenylamide metabolism in wheat.

    abstract::Changes in specialized metabolites were analyzed in wheat leaves inoculated with Bipolaris sorokiniana, the causal agent of spot blotch of Poaceae species. HPLC analysis detected the accumulation of six compounds in B. sorokiniana-infected leaves. Of these, we purified two compounds by silica gel and ODS column chroma...


    pub_type: 杂志文章


    authors: Ube N,Harada D,Katsuyama Y,Osaki-Oka K,Tonooka T,Ueno K,Taketa S,Ishihara A

    更新日期:2019-11-01 00:00:00

  • Polyketide derivatives from a marine-sponge-associated fungus Pestalotiopsis heterocornis.

    abstract::Twelve previously undescribed polyketide derivatives, heterocornols A-L, and seven known analogues were isolated from a culture of the fungus Pestalotiopsis heterocornis associated with sponge. Their structures were elucidated by a comprehensive spectroscopic data analysis and CD Cotton effects. These compounds were e...


    pub_type: 杂志文章


    authors: Lei H,Lin X,Han L,Ma J,Dong K,Wang X,Zhong J,Mu Y,Liu Y,Huang X

    更新日期:2017-10-01 00:00:00

  • Integration of non-targeted metabolomics and automated determination of elemental compositions for comprehensive alkaloid profiling in plants.

    abstract::Plants produce a large array of specialized metabolites to protect themselves. Among these allelochemicals, alkaloids display highly diverse and complex structures that are directly related to their biological activities. Plant alkaloid profiling traditionally requires extensive and time-consuming sample preparation a...


    pub_type: 杂志文章


    authors: Vanderplanck M,Glauser G

    更新日期:2018-10-01 00:00:00

  • Production of (+)-5-deoxystrigol by Lotus japonicus root culture.

    abstract::Lotus japonicus roots, cultured in a modified B5 medium, produced and secreted germination stimulants that induced Striga hermonthica seed germination. The germination-inducing activity was detected both in the roots and the culture filtrate. Following bioassay-guided purification procedures, an active compound was is...


    pub_type: 杂志文章


    authors: Sugimoto Y,Ueyama T

    更新日期:2008-01-01 00:00:00

  • Vanillin.

    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 ...


    pub_type: 杂志文章,评审


    authors: Walton NJ,Mayer MJ,Narbad A

    更新日期:2003-07-01 00:00:00

  • Chevalone C analogues and globoscinic acid derivatives from the fungus Neosartorya spinosa KKU-1NK1.

    abstract::Four meroterpenoids, 1-hydroxychevalone C, 1-acetoxychevalone C, 1,11-dihydroxychevalone C, and 11-hydroxychevalone C and two ester epimers, 2S,4S-spinosate and 2S,4R-spinosate, together with seven known compounds, chevalones B, C, and E, tryptoquivaline, nortryptoquivaline, tryptoquivaline L, and quinadoline A were i...


    pub_type: 杂志文章


    authors: Rajachan OA,Kanokmedhakul K,Sanmanoch W,Boonlue S,Hannongbua S,Saparpakorn P,Kanokmedhakul S

    更新日期:2016-12-01 00:00:00

  • Kuguacins F-S, cucurbitane triterpenoids from Momordica charantia.

    abstract::Chemical investigation of the vines and leaves of Momordica charantia resulted in isolation of fourteen cucurbitane triterpenoids, kuguacins F-S (1-14), including two pentanorcucurbitacins (6 and 7), one octanorcucurbitacin (8), and two trinorcucurbitacins (11 and 12), along with six known analogues. Their structures ...


    pub_type: 杂志文章


    authors: Chen JC,Liu WQ,Lu L,Qiu MH,Zheng YT,Yang LM,Zhang XM,Zhou L,Li ZR

    更新日期:2009-01-01 00:00:00

  • Acylated pregnane glycosides from Caralluma sinaica.

    abstract::Caralluma sinaica is sold on local markets of Saudi Arabia for various health benefits however no phytochemical study has specifically been performed on this species. NMR and UHPLC-ESI-TOF-MS profilings of the ethanolic extract of the whole plant reveal a very complex phytochemical composition dominated by pregnanes. ...


    pub_type: 杂志文章


    authors: Al-Massarani SM,Bertrand S,Nievergelt A,El-Shafae AM,Al-Howiriny TA,Al-Musayeib NM,Cuendet M,Wolfender JL

    更新日期:2012-07-01 00:00:00

  • Flavonol glycosides from Calotropis gigantea.

    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...


    pub_type: 杂志文章


    authors: Sen S,Sahu NP,Mahato SB

    更新日期:1992-08-01 00:00:00

  • ent-Kaurene diterpenoids from Isodon oresbius.

    abstract::Three new ent-kaurene diterpenoids, oreskaurins A-C (1-3), together with ten known ent-kaurene diterpenoids, enmenin monoacetate (4), effusanin E (5), adenolin B (6), maoecrystal G (7), enmelol (8), trichokaurin (9), sodoponin (10), trichorabdal A (11), nodosin (12), enmein (13), and a flavonoid, vitexin (14), were is...


    pub_type: 杂志文章


    authors: Xiang W,Li RT,Wang ZY,Li SH,Zhao QS,Zhang HJ,Sun HD

    更新日期:2004-04-01 00:00:00

  • "Chromoplast" development in arbuscular mycorrhizal roots.

    abstract::The accumulation of apocarotenoids in arbuscular mycorrhizal (AM) roots suggests a dramatic reorganization of the plastids responsible for the biosynthesis of these compounds. This review describes the cytological and biochemical characterization of this phenomenon. The results presented suggest that plastids are key ...


    pub_type: 杂志文章


    authors: Fester T,Lohse S,Halfmann K

    更新日期:2007-01-01 00:00:00

  • An acylated cyanidin glycoside in the red-purple flowers of x Laeliocattleya cv mini purple.

    abstract::A new acylated anthocyanin was isolated from the red-purple flowers of x Laeliocattleya cv Mini Purple as one of the major anthocyanins. The structure of this pigment was determined to be cyanidin 3-O-[6-O-(malonyl)-beta-D-glucopyranoside]-7-O-[6-O-(trans-p- coumaryl)-beta-D-glucopyranoside]-3'-O-[6-O-[trans-4-O-[6-O-...


    pub_type: 杂志文章


    authors: Tatsuzawa F,Saito N,Yokoi M,Shigihara A,Honda T

    更新日期:1994-11-01 00:00:00

  • ent-Abietane diterpenoids from Isodon rubescens var. rubescens.

    abstract::ent-Abietane diterpenoids, hebeiabinins A-F (1-5), together with seven known diterpenoids were isolated from leaves of Isodon rubescens var. rubescens. The structures of 1-5 were established on the basis of spectroscopic analyses, including application of 2D NMR spectroscopic techniques. The diterpenoids isolated were...


    pub_type: 杂志文章


    authors: Huang SX,Pu JX,Xiao WL,Li LM,Weng ZY,Zhou Y,Han QB,Peng SL,Ding LS,Lou LG,Sun HD

    更新日期:2007-03-01 00:00:00

  • Endosymbiotic heterocystous cyanobacteria synthesize different heterocyst glycolipids than free-living heterocystous cyanobacteria.

    abstract::The heterocysts of limnetic nitrogen-fixing filamentous cyanobacteria contain unique glycolipids in their cell wall that create the distinctive gas impermeability of the heterocyst cell wall as well as serve as biomarker lipids for these microbes. It has been assumed that marine free-living and endosymbiotic cyanobact...


    pub_type: 杂志文章


    authors: Schouten S,Villareal TA,Hopmans EC,Mets A,Swanson KM,Sinninghe Damsté JS

    更新日期:2013-01-01 00:00:00