Diterpenoid glucosides from Salvia greggii.

abstract：:A novel minor triterpenoid saponin mimusin (3-O-[beta-D-glucopyranosyl- (1-->6)-beta-D-glucopyranosyl]-2 beta,3 beta,6 beta,23-tetrahydroxyolean- 12-en-28-oic acid 28-O-alpha-L-rhamnopyranosyl-(1-->3)-beta-D-xylopyranosyl-(1-->4)-alpha- L- rhamnopyranosyl-(1-->2)-alpha-L-arabinopyranoside was isolated from the seeds o...

journal_title：Phytochemistry

authors： Sahu NP,Koike K,Jia Z,Nikaido T

更新日期：1997-03-01 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：:Passiflora morifolia, which under natural conditions contains cyanohydrin glucosides linamarin, lotaustralin and epilotaustralin, converted cyclopentanecarbonitrile, 2-cyclopentenecarbonitrile and 3-methylbutanenitrile into the corresponding cyanohydrin glucosides. Turnera angustifolia, which normally produces glucosi...

journal_title：Phytochemistry

authors： Jaroszewski JW,Rasmussen AB,Rasmussen HB,Olsen CE,Jørgensen LB

更新日期：1996-06-01 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

abstract：:Five previously undescribed monoterpenoid indole alkaloids were isolated from the roots of Gelsemium elegans. Their structures with absolute configurations were elucidated by HRESIMS, X-ray diffraction, ECD spectra, and molecular modeling. 19,20-Epoxyhumantenine is a humantenine-type alkaloid with an epoxypropyl group...

journal_title：Phytochemistry

authors： Sun MX,Cui Y,Li Y,Meng WQ,Xu QQ,Zhao J,Lu JC,Xiao K

更新日期：2019-06-01 00:00:00

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-...

journal_title：Phytochemistry

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

更新日期：1994-11-01 00:00:00

abstract：:Bradyrhizobium japonicum bacteroids isolated from root nodules of soybean (Glycine max.) plants converted the gibberellin (GA) precursor [(14)C1]GA12 into several products identified by combined gas chromatography-mass spectrometry as [(14)C1]GA24, [(14)C1]GA9, [(14)C1]GA15, GA9 17-nor-16-one and unidentified products...

journal_title：Phytochemistry

authors： Méndez C,Baginsky C,Hedden P,Gong F,Carú M,Rojas MC

更新日期：2014-02-01 00:00:00

abstract：:Injury to plant products by harvest and postharvest operations induces respiration rate and increases the demand for respiratory substrates. Alterations in primary carbon metabolism are likely to support the elevated demand for respiratory substrates, although the nature of these alterations is unknown. To gain insigh...

journal_title：Phytochemistry

authors： Lafta AM,Fugate KK

更新日期：2011-04-01 00:00:00

abstract：:Two polyphenol oxidase isoforms with distinct expression patterns were identified in hybrid poplar (Populus trichocarpaxP. deltoides). PPO-1, corresponding to the previously cloned PtdPPO (Constabel et al., Plant Physiol. 124: 285-295) was primarily leaf tissue-specific and detected only after wounding. PPO-2 was expr...

journal_title：Phytochemistry

authors： Wang J,Constabel CP

更新日期：2003-09-01 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：:An investigation of the combined leaf and stem of Lithospermum caroliniense afforded two new pentacyclic triterpenoids based on the olean-12-ene and taraxast-12-ene skeletal types. The structures of these compounds were elucidated on the basis of spectral analysis as 1 alpha,3 beta,23-trihydroxyolean-12-ene-28-oic aci...

journal_title：Phytochemistry

authors： Fullas F,Wani MC,Wall ME,Tucker JC,Beecher CW,Kinghorn AD

更新日期：1996-12-01 00:00:00

abstract：:Prophylactic efficacies of Iodus 40 and salicylic acid (SA) against wheat powdery mildew caused by Blumeria graminis f. sp. tritici have been shown and compared with those of heptanoyl salicylic acid (HSA) and trehalose. Plantlets treated once exhibited 55%, 50%, 95%, and 38% protection levels, respectively. Two spray...

journal_title：Phytochemistry

authors： Renard-Merlier D,Randoux B,Nowak E,Farcy F,Durand R,Reignault P

更新日期：2007-04-01 00:00:00

abstract：:Taxol content in the bark of Taxus baccata trees growing in a homogenous (uniform) environment at Jageshwar, District Almora in Central Himalaya has been quantified. The average taxol concentration in the bark of sampled trees was 0.0558+/-0.008% (of dry wt.) and was about 64% higher for male plants (averaged across t...

journal_title：Phytochemistry

authors： Nadeem M,Rikhari HC,Kumar A,Palni LM,Nandi SK

更新日期：2002-07-01 00:00:00

abstract：:An analytical strategy based on the sensitivity of electrospray tandem mass spectrometry following a simplified and reproducible sample preparation procedure was evaluated for the determination of Cd-induced phytochelatins (PC) and related peptides in four maize varieties. In addition to the three known families of PC...

journal_title：Phytochemistry

authors： Chassaigne H,Vacchina V,Kutchan TM,Zenk MH

更新日期：2001-04-01 00:00:00

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...

journal_title：Phytochemistry

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

更新日期：1993-12-01 00:00:00

abstract：:Bioassay-guided fractionation against alpha-glucosidase resulted in isolation and characterization of eight active compounds from the EtOH extract of the seeds of Syagrus romanzoffiana. Of these, seven are stilbenoids, and two of them, 13-hydroxykompasinol A (1) and scirpusin C (4), possess potent inhibitory activity ...

journal_title：Phytochemistry

authors： Lam SH,Chen JM,Kang CJ,Chen CH,Lee SS

更新日期：2008-03-01 00:00:00

abstract：:Repeated fractionations of the methanol extract of the subterranean parts (rhizomes and roots) of Gentiana siphonantha afforded two new and five known secoiridoids, in addition to the widespread plant constituents beta-sitiosterol, daucosterol and oleanolic acid. The structures of the new acyl secoiridoid glycosides w...

journal_title：Phytochemistry

authors： Tan RX,Kong LD

更新日期：1997-11-01 00:00:00

abstract：:Aerial parts of Ellipeiopsis cherrevensis contained the polyoxygenated cyclohexenes zeylenol, ferrudiol and three analogs, ellipeiopsols A, B and C. The C-1 stereochemistry of ferrudiol has been revised. ...

journal_title：Phytochemistry

authors： Kijjoa A,Bessa J,Pinto MM,Anatachoke C,Silva AM,Eaton G,Herz W

更新日期：2002-03-01 00:00:00

abstract：:The Portuguese pine forest has become dangerously threatened by pine wilt disease (PWD), caused by the pinewood nematode (PWN), Bursaphelenchus xylophilus. Synthetic chemicals are the most common pesticides used against phytoparasitic nematodes but its use has negative ecological impacts. Phytochemicals may prove to b...

journal_title：Phytochemistry

authors： Faria JM,Barbosa P,Bennett RN,Mota M,Figueiredo AC

更新日期：2013-10-01 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：:A new bidesmosidic triterpenoidal saponin of hederagenin was isolated from the ethanolic extract of the roots of Symphytum officinale L. Its structure was elucidated by using 1H NMR, 1H-1H COSY NMR, heteronuclear 1H-13C correlated spectroscopy (heteroCOSY), 13C NMR, DEPT, FAB mass spectrometry and chemical evidence as...

journal_title：Phytochemistry

authors： Noorwala M,Mohammad FV,Ahmad VU,Sener B

更新日期：1994-05-01 00:00:00

abstract：:Investigation of the extracts of a culture of Cladosporium tenuissimum, a known hyperparasite of several rust fungi, gave rise to the isolation of cladosporols B-E (2-5). Their structure and stereochemistry were elucidated on the basis of 1H and 13C NMR evidence and CD measures. Cladosporols 1-5 were active in inhibit...

journal_title：Phytochemistry

authors： Nasini G,Arnone A,Assante G,Bava A,Moricca S,Ragazzi A

更新日期：2004-07-01 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：:Two new cytotoxic mono-tetrahydrofuran acetongenins, annosenegalin and annogalene, have been isolated from the cytotoxic methanolic extract of Annona senegalensis and A. cherimolia seeds. Their structures were established on the basis of 1D and 2D NMR spectroscopic techniques. Annosenegalin belongs to the rare type of...

journal_title：Phytochemistry

authors： Sahpaz S,González MC,Hocquemiller R,Zafra-Polo MC,Cortes D

更新日期：1996-05-01 00:00:00

abstract：:Cultured cells of Eucalyptus perriniana biotransformed (+)-menthol to its gentiobioside and triglucoside [2,6-di-O-(beta-D-glucopyranosyl)-beta-D-glucopyranoside]. The structures of these compounds were determined by means of NMR techniques. ...

journal_title：Phytochemistry

authors： Orihara Y,Miyatake H,Furuya T

更新日期：1991-01-01 00:00:00

abstract：:Five new compounds (three esters and two glycosides) and seven previously reported compounds were isolated as biotransformation products of digitoxigenin by ginseng hairy root cultures. The new esters and glycosides were elucidated as digitoxigenin stearate, digitoxigenin palmitate, digitoxigenin myristate, 3-epidigit...

journal_title：Phytochemistry

authors： Kawaguchi K,Hirotani M,Yoshikawa T,Furuya T

更新日期：1990-01-01 00:00:00

abstract：:The control and interaction between nitrogen and carbon assimilatory pathways is essential in both photosynthetic and non-photosynthetic tissue in order to support metabolic processes without compromising growth. Physiological differences between the basal and mature region of wheat (Triticum aestivum) primary leaves ...

journal_title：Phytochemistry

authors： Allwood JW,Chandra S,Xu Y,Dunn WB,Correa E,Hopkins L,Goodacre R,Tobin AK,Bowsher CG

更新日期：2015-07-01 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：:Four undescribed 23,24-O-isopropylidene-19(18 → 17)-abeo-28-noroleanane-derived spirocyclic triterpenoids and an undescribed 28-noroleanane-derived spirocyclic triterpenoid, together with five known 28-noroleanane-derived spirocyclic triterpenoids, were isolated and identified. In addition, three undescribed iridoid g...

journal_title：Phytochemistry

authors： Le DD,Nguyen DH,Zhao BT,Kim JA,Kim SK,Min BS,Choi JS,Woo MH

更新日期：2018-09-01 00:00:00

abstract：:Cannabis sativa L. is the source for a whole series of chemically diverse bioactive compounds that are currently under intensive pharmaceutical investigation. In this work, hot and cold water extracts as well as ethanol/water mixtures (tinctures) of cannabis were compared in order to better understand how these extrac...

journal_title：Phytochemistry

authors： Politi M,Peschel W,Wilson N,Zloh M,Prieto JM,Heinrich M

更新日期：2008-01-01 00:00:00