Metabolic profiling for studying chemotype variations in Withania somnifera (L.) Dunal fruits using GC-MS and NMR spectroscopy.

abstract：:Five Ib-type cyclopeptide alkaloids, jubanines F-J (1-5), and three known compounds, nummularine B (6), daechuine-S3 (7), and mucronine K (8) were isolated from the roots of Ziziphus jujuba. Their structures were fully characterized by spectroscopic analyses in combination with chemical derivatization. Compounds 1-3, ...

journal_title：Phytochemistry

authors： Kang KB,Ming G,Kim GJ,Ha TK,Choi H,Oh WK,Sung SH

更新日期：2015-11-01 00:00:00

abstract：:Plants are attacked by many different herbivores. Some will consume whole leaves or roots, while others will attack specific types of tissue. Thus, insight into the metabolite profiles of different types of leaf tissues is necessary to understand plant resistance against herbivores. Jacobaea vulgaris, J. aquatica and ...

journal_title：Phytochemistry

authors： Nuringtyas TR,Choi YH,Verpoorte R,Klinkhamer PG,Leiss KA

更新日期：2012-06-01 00:00:00

abstract：:Cytokinin (CK) is a plant hormone that plays important regulatory roles in many aspects of plant growth and development. Although functions of CK and its biosynthesis pathway have been studied extensively, there is still no efficient biosynthesis inhibitor, which would be useful for studying CK from a chemical genetic...

journal_title：Phytochemistry

authors： Sasaki E,Ogura T,Takei K,Kojima M,Kitahata N,Sakakibara H,Asami T,Shimada Y

更新日期：2013-03-01 00:00:00

abstract：:The triketone chemotype of manuka, Leptospermum scoparium (Myrtaceae), is commercially important because of its antimicrobial activity. Oils from 36 individual plants on the East Cape of New Zealand all showed similar high triketone contents (>20% total triketones) with little seasonal variation. Analyses of oils from...

journal_title：Phytochemistry

authors： Douglas MH,van Klink JW,Smallfield BM,Perry NB,Anderson RE,Johnstone P,Weavers RT

更新日期：2004-05-01 00:00:00

abstract：:A butanolide, marliolide, was isolated from the hexane extract of leaves of Mollinedia marliae (Monimiacae) along with the long chain fatty alcohol hexacosanol. Phytol and a mixture of sitosterol and stigmasterol were also isolated from leaves of both M. marliae and M. gilgiana. trans-N-Feruloyltyramine, a ferulic aci...

journal_title：Phytochemistry

authors： Claros BM,da Silva AJ,Vasconcellos ML,de Brito AP,Leitão GG

更新日期：2000-12-01 00:00:00

abstract：:Colonization of the roots of various tobacco species and cultivars (Nicotiana glauca Grah., N. longiflora Cav., N. rustica L., N. tabacum L., N. tabacum L. cv. Samsun NN, N. sanderae hort. Sander ex Wats.) as well as tomato plants (Lycopersicon esculentum L. cv. Moneymaker) by the arbuscular mycorrhizal fungus Glomus ...

journal_title：Phytochemistry

authors： Maier W,Schmidt J,Nimtz M,Wray V,Strack D

更新日期：2000-06-01 00:00:00

abstract：:Vascular plants have evolved with remarkable ways to form and protect the vasculature apparatus. In certain woody shrubs, the secondary xylem can have within its center a hollowed pith surrounded by secondary xylem, whereas in most trees there is a solid core of heartwood. Both types of woody systems have, however, th...

journal_title：Phytochemistry

authors： Kwon M,Davin LB,Lewis NG

更新日期：2001-07-01 00:00:00

abstract：:Triterpenoid saponins, impatienosides A-G, together with 12 known saponins, were isolated from the whole plants of Impatiens siculifer. Their structures were established on the basis of extensive 1D and 2D NMR and MS analyses coupled with chemical degradation. Cytotoxic activities of the isolated saponins were evaluat...

journal_title：Phytochemistry

authors： Li W,Bi X,Wang K,Li D,Satou T,Koike K

更新日期：2009-04-01 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

abstract：:The paper describes the amino acid sequence of a 26 kDa basic subunit of 13S globulin of common buckwheat (Fagopyrum esculentum Moench). The protein has 93 and 75% sequence homology with 11S globulin of Coffea arabica and beta subunit of 11S globulin of Cucurbita pepo respectively. The subunit has the "globally conser...

journal_title：Phytochemistry

authors： Bharali S,Chrungoo NK

更新日期：2003-05-01 00:00:00

abstract：:The widespread secondary metabolite usnic acid, a dibenzofuran derivative, is the principal acetone-soluble compound in the lichen Flavocetraria nivalis. Seasonal variation in concentrations were studied in four populations of this lichen, three from Arctic-alpine habitats in the Northern Hemisphere, and one from Pata...

journal_title：Phytochemistry

authors： Bjerke JW,Elvebakk A,Domínguez E,Dahlback A

更新日期：2005-02-01 00:00:00

abstract：:Seventeen undescribed heterodimers of meroterpene phenol, psocorylins A-Q, were isolated from the fruits of Psoralea corylifolia. Their another monomeric unit derived from flavonone, chalcone, coumarin and isoflavone, respectively. Psocorylins A-E were rare natural spiroketals with the skeleton of 1,4,8-trioxaspiro[4....

journal_title：Phytochemistry

authors： Xu QX,Zhang YB,Liu XY,Xu W,Yang XW

更新日期：2020-08-01 00:00:00

abstract：:Two unprecedented guaiane-type sesquiterpene glycosides (undulatumosides A and B) were isolated by bioassay-guided fractionation from the MeOH extract of Pittosporum undulatum fruits, along with six known compounds, including the guaiane isomers 5-guaien-11-ol and 4-guaien-11-ol. The structures of the compounds were e...

journal_title：Phytochemistry

authors： Mendes SA,Mansoor TA,Rodrigues A,Armas JB,Ferreira MJ

更新日期：2013-11-01 00:00:00

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...

journal_title：Phytochemistry

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

更新日期：2013-01-01 00:00:00

abstract：:Five novel polyphenols have been isolated from the air-dried herb of Cistus salvifolius; they were characterized as epigallocatechin-3-O-(4-hydroxybenzoate), epigallocatechin-(4 beta-->8)-epigallocatechin, epigallocatechin-3-O- gallate-(4 beta-->8)-epigallocatechin, epigallocatechin-(4 beta-->6)-epigallocatechin-3-O-g...

journal_title：Phytochemistry

authors： Danne A,Petereit F,Nahrstedt A

更新日期：1994-09-01 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：: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...

journal_title：Phytochemistry

authors： Anil VS,Sankara Rao K

更新日期：2001-09-01 00:00:00

abstract：:In addition to 3-epi-betulinic acid, three triterpene glycosides were isolated from leaves of Schefflera octophylla. The structures of the glycosides have been determined as 28-O-[alpha-L-rhamnopyranosyl(1----4)-O-beta-D-glucopyranosyl(1----6)-be ta-D- glucopyranosides of 3 alpha-hydroxy-lup-20(29)-ene-23,28-dioic aci...

journal_title：Phytochemistry

authors： Sung TV,Steglich W,Adam G

更新日期：1991-01-01 00:00:00

abstract：:Two new monogalactosyl diacylglycerols were isolated from the freshwater green alga, Chlorella vulgaris, as anti-tumour promoters, together with three monogalactosyl diacylglycerols and two digalactosyl diacylglycerols. The new monogalactosyl diacylglycerol containing (7Z,10Z)-hexadecadienoic acid showed a more potent...

journal_title：Phytochemistry

authors： Morimoto T,Nagatsu A,Murakami N,Sakakibara J,Tokuda H,Nishino H,Iwashima A

更新日期：1995-11-01 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：:Three phenolic glycosides were isolated together with two known flavonol glycosides from the H2O-soluble fraction of rhizomes of Kaempferia parviflora. Their structures were determined to be rel-(5aS,10bS)-5a,10b-dihydro-1,3,5a,9-tetrahydroxy-8-methoxy-6H-benz[b]indeno[1,2-d]furan-6-one 5a-O-[alpha-L-rhamnopyranosyl-(...

journal_title：Phytochemistry

authors： Azuma T,Tanaka Y,Kikuzaki H

更新日期：2008-11-01 00:00:00

abstract：:Several glycosides were isolated, as polyacetates, from the n-BuOH fraction of the Tinospora cordifolia stems. The structures of three new norditerpene furan glycosides cordifoliside A, B and C have been established by 1D and 2D NMR spectroscopy. ...

journal_title：Phytochemistry

authors： Gangan VD,Pradhan P,Sipahimalani AT,Banerji A

更新日期：1994-10-01 00:00:00

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...

journal_title：Phytochemistry

authors： Bones AM,Rossiter JT

更新日期：2006-06-01 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

abstract：:Chemical investigation of the glandular trichome exudate from Silene gallica L. (Caryophyllaceae) resulted in isolation of 10 cyclic fatty acyl glycosides (gallicasides A-J). The cyclic structures were characterized by a glycosidic linkage of the glucose moiety to either the C-12 or the C-13 position of the octadecano...

journal_title：Phytochemistry

authors： Asai T,Fujimoto Y

更新日期：2010-08-01 00:00:00

abstract：:Proteomic analyses of soybean seedlings responding to flooding were conducted to identify key proteins involved. The seeds were germinated on a spongy matrix for two days, and then subjected to flooding for three days. After flooding, the total number of roots, the length of the main root, the lengths of the lateral a...

journal_title：Phytochemistry

authors： Shi F,Yamamoto R,Shimamura S,Hiraga S,Nakayama N,Nakamura T,Yukawa K,Hachinohe M,Matsumoto H,Komatsu S

更新日期：2008-04-01 00:00:00

abstract：:The A-type proanthocyanidin, epigallocatechin-(2beta-->7,4beta-->8)-epicatechin, together with the known epicatechin, luteolin 3'beta-D-glucopyranoside, chrysoeriol 7beta-D-glucopyranoside and 2-methylpentan-2,4-diol, were isolated from leaves of Dioclea lasiophilla. The structures were established on the basis of the...

journal_title：Phytochemistry

authors： Barreiros AL,David JP,de Queiroz LP,David JM

更新日期：2000-12-01 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：: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：:Profiles of terpenoid glycoside metabolites in glandular trichomes of Solanum habrochaites LA1777 leaves were generated using ultrahigh performance liquid chromatography/time-of-flight mass spectrometry with multiplexing of non-selective collision-induced dissociation (CID). Profiling data suggested a diverse group of...

journal_title：Phytochemistry

authors： Ekanayaka EA,Li C,Jones AD

更新日期：2014-02-01 00:00:00