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 were determined by spectroscopic and chemical means.
journal_name
Phytochemistryjournal_title
Phytochemistryauthors
Itoh A,Baba Y,Tanahashi T,Nagakura Ndoi
10.1016/s0031-9422(01)00418-6subject
Has Abstractpub_date
2002-01-01 00:00:00pages
91-7issue
1eissn
0031-9422issn
1873-3700pii
S0031942201004186journal_volume
59pub_type
杂志文章相关文献
PHYTOCHEMISTRY文献大全abstract::An extract of leaves and stems of Peperomia villipetiola has been found to contain myristicin (3-methoxy-4,5-methylenedioxy-allylbenzene) and seven chromenes, whose structures are methyl 5-hydroxy-7-methyl-2,2-dimethyl-2H-1-chromene-6-carboxylate (1), methyl 5-methoxy-7-methyl-2,2-dimethyl-2H-1-chromene-8-carboxylate ...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2005.01.003
更新日期:2005-03-01 00:00:00
abstract::Flavonoids in the petals of several C. ternatea lines with different petal colors were investigated with LC/MS/MS. Delphinidin 3-O-(2"-O-alpha-rhamnosyl-6"-O-malonyl)-beta-glucoside was newly isolated from the petals of a mauve line (wm) together with three known anthocyanins. They were identified structurally using U...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/s0031-9422(03)00504-1
更新日期:2003-11-01 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
pub_type: 杂志文章
doi:10.1016/j.phytochem.2010.01.006
更新日期:2010-04-01 00:00:00
abstract::Non-targeted LC-MS metabolomics on fruit of three wild and domesticated apple species (Malus sylvestris, M. sieversii and M. domestica) showed that two crab apple (M. sylvestris) accessions were distinguished by high concentrations of an ascorbic acid glycoside (AAG). This was partly purified, but key NMR signals were...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2020.112297
更新日期:2020-05-01 00:00:00
abstract::A project to investigate the supramolecular structure of photosystems was initiated, which is based on protein solubilizations by digitonin, protein separations by Blue native (BN)-polyacrylamide gel electrophoresis (PAGE) and protein identifications by mass spectrometry (MS). Under the conditions applied, nine photos...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2004.04.022
更新日期:2004-06-01 00:00:00
abstract::Bioassay-directed fractionation of an ethyl acetate extract from cultures of the fungus Malbranchea aurantiaca led to the isolation of two phytotoxic compounds, namely, 1-hydroxy-2-oxoeremophil-1(10),7(11),8(9)-trien-12(8)-olide (1) and penicillic acid (2). The structure of 1 was established by spectroscopic and X-ray...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2005.03.005
更新日期:2005-05-01 00:00:00
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
pub_type: 杂志文章
doi:10.1016/j.phytochem.2010.10.007
更新日期:2011-01-01 00:00:00
abstract::Germacrene D is considered as a precursor of many sesquiterpene hydrocarbons. We have investigated the acid catalyzed as well as the photochemically and thermally induced rearrangement processes of germacrene D isolated from several Solidago species, which contain both enantiomers of germacrene D. Enantiomeric mixture...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/s0031-9422(00)00266-1
更新日期:2000-09-01 00:00:00
abstract::Eleven oleanane-type triterpenoid saponins, foegraecumosides A-K, and eight known ones, were isolated from the aerial parts of Lysimachia foenum-graecum. Their structures were elucidated by spectroscopic data analyses and chemical methods. All isolated saponins were evaluated for their cytotoxicity against four human ...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2017.01.021
更新日期:2017-04-01 00:00:00
abstract::This work demonstrates the presence of hyoscyamine and scopolamine at different stages of shoot regeneration from non-organogenic and organogenic calli. The 11-week-old non-organogenic calli contained 0.41+/-0.03 and 0.23+/-0.02 microg g(-1) dry wt hyoscyamine and scopolamine respectively. However, no root meristem wa...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/s0031-9422(00)00342-3
更新日期:2001-01-01 00:00:00
abstract::A new sterol with a non-conventional side chain has been isolated from the whole plant of Anoectochilus koshunensis, together with four known sterols, a megastigmane glucoside and 2'-deoxyadenosine. The structure of the new sterol was elucidated as 26-methylstigmasta-5,22,25, (27)-trien-3 beta-ol based on chemical and...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/s0031-9422(00)89743-5
更新日期:1994-08-01 00:00:00
abstract::The methanolic extract from the flower buds of Prunus mume, cultivated in Zhejiang Province, China, showed an inhibitory effect on melanogenesis in theophylline-stimulated B16 melanoma 4A5 cells. From the methanolic extract, five acylated sucroses, mumeoses A-E, and three acylated quinic acid analogs, 5-O-(E)-p-coumar...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2013.04.012
更新日期:2013-08-01 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
pub_type: 杂志文章
doi:10.1016/j.phytochem.2012.11.023
更新日期:2013-03-01 00:00:00
abstract::Glucosinolate content of leaves and roots, diversity in leaf pubescence, and resistance to two near-isogenic lines of the flea beetle Phyllotreta nemorum with or without an R-gene, were determined for 27 accessions of 7 Barbarea taxa, i.e. B. stricta, B. orthoceras, B. intermedia, B. verna, B. vulgaris var. vulgaris, ...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/s0031-9422(02)00750-1
更新日期:2003-05-01 00:00:00
abstract::The effects of sewage sludges were investigated on the symbiotic interactions between the model plant Medicago truncatula and the arbuscular mycorrhizal fungus Glomus mosseae or the rhizobial bacteria Sinorhizobium meliloti. By comparison to a control sludge showing positive effects on plant growth and root symbioses,...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2004.04.037
更新日期:2004-06-01 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
pub_type: 杂志文章
doi:10.1016/j.phytochem.2008.12.022
更新日期:2009-02-01 00:00:00
abstract::A novel cyanogenic diglucoside has been isolated from methanolic extracts of young seedlings of Sorghum bicolor. Its structure was established as dhurrin-6-glucoside from NMR, mass spectrometry and enzymatic hydrolysis data. Compared with dhurrin, which is the major cyanogenic glucoside in sorghum leaves, dhurrin-6-gl...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/0031-9422(96)00297-x
更新日期:1996-10-01 00:00:00
abstract::Chemical examination of the leaves of Styrax ferrugineus yielded 5-[3''-(beta-D-glucopyranosyloxy)propyl]-7-methoxy-2-(3',4'-dimethoxyphenyl) benzofuran, along with the known nor-lignans 5-(3''-hydroxypropyl)-7-methoxy-2-(3',4'-methylenedioxyphenyl) benzofuran, 5-(3''-hydroxypropyl)-7-methoxy-2-(3',4'-dimethoxyphenyl)...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/s0031-9422(00)00225-9
更新日期:2000-11-01 00:00:00
abstract::Plant cell suspension cultures of Rauvolfia are able to produce a high amount of arbutin by glucosylation of exogenously added hydroquinone. A four step purification procedure using anion exchange, hydrophobic interaction, hydroxyapatite-chromatography and chromatofocusing delivered in a yield of 0.5%, an approximatel...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/s0031-9422(99)00539-7
更新日期:2000-01-01 00:00:00
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...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2018.01.014
更新日期:2018-04-01 00:00:00
abstract::Myrothecium verrucaria was found to be an effective pathogen against kudzu grown in the greenhouse and the field. M. verrucaria produced large amounts of macrocyclic trichothecenes when cultured on solid rice medium, including epiroridin E (16.8 mg/g crude extract), epiisororidin E (1 mg/g), roridin E (8.7 mg/g), rori...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/s0031-9422(01)00214-x
更新日期:2001-09-01 00:00:00
abstract::The nematicidal 5-pentyl-2-furaldehyde and the cytotoxic sesquiterpene dermatolactone were isolated from the extracts of an Ascomycete belonging to the Dermateaceae. The furan has previously been reported from the Basidiomycete Irpex lacteus, while dermatolactone is a new compound the structure of which was determined...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/0031-9422(96)00326-3
更新日期:1996-09-01 00:00:00
abstract::The corolla of Brassica rapa has an UV-absorbing zone in its center, known as the nectar guide for attracting pollinating insects. The pigment which plays the role of the nectar guide was isolated from the petals and identified to be isorhamnetin 3,7-O-di-beta-D-glucopyranoside on the basis of MS and NMR spectroscopic...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/s0031-9422(02)00237-6
更新日期:2002-10-01 00:00:00
abstract::Evidence is presented for the presence of xylogalacturonan (XGA) in Arabidopsis thaliana. This evidence was obtained by extraction of pectin from the seeds, root, stem, young leaves and mature leaves of A. thaliana, followed by treatment of these pectin extracts with xylogalacturonan hydrolase (XGH). Upon enzymatic tr...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2007.01.016
更新日期:2007-04-01 00:00:00
abstract::The flavonoid rich grain of buckwheat (Fagopyrum esculentum Moench, Fam. Polygonaceae) is of high nutritional value. With the aim to improve its agronomic productivity, cultivars were crossed with the wild species F. homotropicum which, however, differs in its flavonoid content. The intention of this work was to deter...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2008.01.001
更新日期:2008-04-01 00:00:00
abstract::Giant fennel (Ferula communis L.) is well known in folk medicine for the treatment of various organ disorders. The biological importance of members of genus Ferula prompted us to investigate the leaves of the endangered Tunisian medicinal plant F. communis L. not previously investigated. An estimate of genetic diversi...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2016.01.012
更新日期:2016-04-01 00:00:00
abstract::The effects of exogenous silicon (Si) on plant growth, activities of superoxide dismutase (SOD), guaiacol peroxidase (GPX), ascorbate peroxidase (APX), dehydroascorbate reductase (DHAR), glutathione reductase (GR) and catalase, and concentrations of ascorbate and glutathione were investigated in cucumber (Cucumis sati...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2005.05.006
更新日期:2005-07-01 00:00:00
abstract::Sixteen previously undescribed lanostane-type triterpenoids (1-16), together with fourteen known compounds, were isolated from cultivated fruiting bodies of the basidiomycete Ganoderma casuarinicola, a recently described species. The structures were elucidated on the basis of NMR spectroscopic and mass spectrometry da...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2019.112225
更新日期:2020-02-01 00:00:00
abstract::Eleven triterpenoid saponins were isolated from the roots of Gypsophila trichotoma Wender. (G. trichotoma Wender. var. trichotoma) (Caryophyllaceae), together with one known compound. The structures were established on the basis of extensive NMR analysis ((1)H, (13)C NMR, COSY, TOCSY, ROESY, HSQC, and HMBC), completed...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2013.03.001
更新日期:2013-06-01 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
pub_type: 杂志文章
doi:10.1016/j.phytochem.2004.12.016
更新日期:2005-09-01 00:00:00