Abstract:
:Crotaoprostrin, a chalcone not yet known as a plant constituent, was isolated from the aerial parts of the Indian medicinal plant Crotalaria prostrata. The structures of the chalcone polyarvin and the partially hydrogenated naturally occurring derivatives crotaramin, crotaramosmin, and crotin were confirmed by chemical synthesis.
journal_name
Phytochemistryjournal_title
Phytochemistryauthors
Krohn K,Steingröver K,Srinivasa Rao Mdoi
10.1016/s0031-9422(02)00475-2subject
Has Abstractpub_date
2002-12-01 00:00:00pages
931-6issue
8eissn
0031-9422issn
1873-3700pii
S0031942202004752journal_volume
61pub_type
杂志文章相关文献
PHYTOCHEMISTRY文献大全abstract::Seven dammarane glycosides, gypenosides GC1 to GC7, together with ten known compounds, gypenosides V, XIV, XLII-XLVI, gynosaponins TN-1, -2, and gymnemaside VI, were isolated from the methanol extract of the aerial parts of Gynostemma pentaphyllum. Their structures were elucidated by both analysis of 1D and 2D NMR spe...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2011.04.003
更新日期:2011-08-01 00:00:00
abstract::The methanol extract from Bellis perennis (Asteraceae) flowers was found to promote collagen synthesis in normal human dermal fibroblasts (NHDFs). Seven oleanane-type triterpene saponins, perennisosides XIII-XIX, and two known saponins, bellissaponins BS5 and BS9, were isolated from the methanol extract. The structure...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2015.05.011
更新日期:2015-08-01 00:00:00
abstract::The opium poppy Papaver somniferum L. produces the antimicrobial benzo[c]phenanthridine alkaloid sanguinarine and the narcotic analgesic morphinan alkaloid morphine. Transcripts of three genes of alkaloid biosynthesis in P. somniferum in developing seedlings, mature plants and plant cell suspension culture were monito...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/s0031-9422(99)00600-7
更新日期:2000-03-01 00:00:00
abstract::Epoxide hydrolases (EH, EC 3.3.2.3) have been proposed to be key enzymes in the biosynthesis of polyether (PE) ladder compounds such as the brevetoxins which are produced by the dinoflagellate Karenia brevis. These enzymes have the potential to catalyze kinetically disfavored endo-tet cyclization reactions. Data minin...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2015.11.002
更新日期:2016-02-01 00:00:00
abstract::We have previously reported the purification and partial characterization of two cationic peroxidases from the cell walls of seeds and seedlings of the South American conifer, Araucaria araucana. In this work, we have studied the amino acid composition and NH2-terminal sequences of both enzymes. We also compare the da...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/0031-9422(94)00665-g
更新日期:1995-05-01 00:00:00
abstract::An activity-guided separation for inhibitors of rat platelet 12-lipoxygenase led to the isolation of two compounds, 4-O-feruloyl-5-O-caffeoylquinic acid (IC50; 5.5 microM) and methyl 4-O-feruloyl-5-O-caffeoylquinate (IC50; 1.9 microM) from the peel of Ponkan fruit (Citrus reticulata). The complete structure of each ph...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/s0031-9422(00)00462-3
更新日期:2001-04-01 00:00:00
abstract::A benzoquinone, named alopecuquinone, was isolated from the ethanol extract of the inflorescences of Cyperus alopecuroides. Its structure was primarily elucidated by spectroscopic analysis including 1H, 13C NMR, APT, HMQC, 1H-1H COSY and CIMS. The known flavonoids, vicenin 2, orientin, diosmetin, quercetin 3,3'-dimeth...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/s0031-9422(02)00060-2
更新日期:2002-06-01 00:00:00
abstract::Glucosinolates (GLs) present in root, seed, and leaf extracts of Pentadiplandra brazzeana Baillon were characterized and quantified according to the ISO 9167-1 method based on the HPLC analysis of desulfo-GLs. The analyses were complemented by GC-MS analyses of the isothiocyanates (ITCs) generated from GL degradation ...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2011.09.006
更新日期:2012-01-01 00:00:00
abstract::We investigated impacts of early and mild biotic stress on Biogenic Volatile Organic Compounds (BVOC) emissions from tomato in order to test their potential for early (biotic) stress detection. Tomato plants were exposed to two common fungal pathogens, Botrytis cinerea and Oidium neolycopesici and the sap-sucking aphi...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2017.09.006
更新日期:2017-12-01 00:00:00
abstract::Abscisic acid (ABA) has been implicated as a mediator in plant responses to various environmental stresses. To evaluate the transcriptional and metabolic events downstream of ABA perception, Arabidopsis thaliana seedlings were analyzed by transcript and metabolite profiling, and results were integrated, using the rece...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2008.09.020
更新日期:2008-12-01 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
pub_type: 杂志文章
doi:10.1016/j.phytochem.2012.09.002
更新日期:2013-01-01 00:00:00
abstract::Two new acetogenins, gardnerilins A and B, have been isolated from the roots of Goniothalamus gardneri. Both are C35 acetogenins containing non-tetrahydrofuran rings. Their structures have been established on the basis of spectral evidence. ...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/s0031-9422(97)00959-x
更新日期:1998-11-01 00:00:00
abstract::Three abietane diterpenoid dimers, bisprioterones A-C (1-3), were isolated from roots of the Chinese folk medicinal plant Salvia prionitis Hance (Labiatae). Compounds 1-3 possessed two different abietane diterpenoid skeleta, which were linked via either a C-C single bond (1 and 2) or an ether bridge (3). Their structu...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2005.12.023
更新日期:2006-04-01 00:00:00
abstract::The methanolic extract from the pericarps of Sapindus rarak DC. was found to show pancreatic lipase inhibitory activity (IC50=ca. 614 microg/mL). From the extract, oleanane-type triterpene oligoglycosides, rarasaponins I-III (1-3), and raraoside A (4), were isolated together with 13 known saponins and four known sesqu...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2009.06.015
更新日期:2009-06-01 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
pub_type: 杂志文章
doi:10.1016/s0031-9422(01)00231-x
更新日期:2001-09-01 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::In addition to lotaustralin and linamarin, a novel cyanogenic glycoside, 2-((6-O-(beta-D-apiofuranosyl)-beta-D-glucopyranosyl)oxy)-2-met hylbutanenitrile , two novel non-cyanogenic glycosides, (2S)-((6-O-(beta-D-apiofuranosyl)-beta-D- glucopyranosyl)oxy)butane and 2-((6-O-(beta-D-apiofuranosyl)-beta-D-glucopyranosyl)o...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/0031-9422(95)00398-q
更新日期:1995-11-01 00:00:00
abstract::An investigation of an ethyl acetate extract of Embelia schimperi leaves has led to the isolation of 10 oleanane-type triterpenes characterized as 3beta,16alpha-di-O-acetyl-13beta, 28-epoxyoleanane (1), 3beta-acetyl-16-oxo-13beta, 28-epoxyoleanane (2), 3beta-acetyl-16alpha-hydroxy-13beta, 28-epoxyoleanane (3), 3beta-a...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2006.07.025
更新日期:2006-12-01 00:00:00
abstract::From the hexane extract of berries of Juniperus excelsa, one new and four known diterpenes were isolated besides a known sesquiterpene. The structures of the known diterpenes were identified as isopimaric, isocommunic, (-)ent-trans communic and sandracopimaric acids, along with the sesquiterpene 4a-hydroxycedrol and t...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/s0031-9422(98)00675-x
更新日期:1999-04-01 00:00:00
abstract::Poliumoside, forsythoside B, echinacoside and arenarioside, caffeic glycoside esters, were isolated from several species of Oleaceae. The poliumoside/forsythoside ratio distinguishes Jasminum nudiflorum from J. mesnyi. Arenarioside and forsythoside B act in Forsythia species as good hybridization markers. ...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/0031-9422(92)80032-a
更新日期:1992-03-01 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
pub_type: 杂志文章
doi:10.1016/j.phytochem.2009.03.022
更新日期:2009-04-01 00:00:00
abstract::From the roots of various Stemona species four new dehydrotocopherols (chromenols) were isolated and their structures and stereochemistry elucidated by spectroscopic methods. The double bond between C-3 and C-4 proved to be a typical chemical character of the genus found in most of the species. Various C-methylations ...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2004.08.023
更新日期:2004-10-01 00:00:00
abstract::Three-day-old soybean (Glycine max) seedlings were exposed to 0.4 M sorbitol solution for 4 h to induce amidinotransferase activity, with the corresponding enzyme being purified to homogeneity by chromatographic separation on DEAE-Sephacel, Sephacryl S-300 and L-arginine Sepharose 4B. The purified enzyme used L-argini...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/s0031-9422(02)00401-6
更新日期:2002-12-01 00:00:00
abstract::In a study of 62 plant species of the Cretan flora for their phytotoxic activity, plants were extracted successively with CH2Cl2, MeOH and H2O. Phytotoxicity evaluation of the 240 extracts was performed against Lactuca sativa L. and Agrostis stolonifera L.. The MeOH extract of Bellis longifolia was the most phytotoxic...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2017.08.019
更新日期:2017-12-01 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
pub_type: 杂志文章
doi:10.1016/s0031-9422(01)00108-x
更新日期:2001-07-01 00:00:00
abstract::Withania somnifera, known in India as Asghawhanda, is used traditionally to treat many medical problems including diabetes and has demonstrated therapeutic activity in various animal models as well as in diabetic patients. While much of W. somnifera's therapeutic activity is attributed to withanolides, their role in t...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2015.02.029
更新日期:2015-08-01 00:00:00
abstract::A benzil, calophione A, 1-(6'-Hydroxy-1',3'-benzodioxol-5'-yl)-2-(6''-hydroxy-2''-isopropenyl-2'',3''-dihydro-benzofuran-5''-yl)-ethane-1,2-dione and three coumestan derivatives, tephcalostan B, C and D were isolated from the roots of Tephrosia calophylla. Their structures were deduced from spectroscopic data, includi...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2008.10.009
更新日期:2009-01-01 00:00:00
abstract::Bioguided-fractionation of an acetone extract of the roots of Salvia cilicica (Lamiaceae) led to isolation of two new diterpenes, 7-hydroxy-12-methoxy-20-nor-abieta-1,5(10),7,9,12-pentaen-6,14-dione and abieta-8,12-dien-11,14-dione (12-deoxy-royleanone), together with oleanolic acid, ursolic acid, ferruginol, inuroyol...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/s0031-9422(02)00361-8
更新日期:2002-12-01 00:00:00
abstract::The brown-rot fungus Gloeophyllum odoratum was collected from spruce stumps in southern Finland. The volatiles in the fruiting body and fungal cultures grown in malt extract and liquid medium were investigated. Chitin, chitosan and D-(+)-glucosamine at a concentration of 450 mgl-1 medium were used as elicitors. Chitos...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/s0031-9422(00)90463-1
更新日期:1994-07-01 00:00:00
abstract::From a water extract of whole plants of Sesamum indicum, two new, and six known phenylethanoid glycosides, and three new triglycosides which had the same sugar sequence were isolated. The structures of the new compounds were elucidated from chemical and spectroscopic evidence. ...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/0031-9422(93)85348-u
更新日期:1993-10-01 00:00:00