Abstract：
:A study of wheat (Triticum aestivum L.) leaves phenolome was carried out during cold acclimation of the winter (Claire) and spring (Bounty) varieties using a combination of HPLC-ESI-MS techniques. A total of 40 phenolic and flavonoid compounds were identified, and consisted mainly of two coumarin derivatives, eight simple phenolic derivatives, 10 hydroxycinnamoyl amides and 20 flavonoid derivatives. Identification and quantification of individual compounds were performed using an HPLC system coupled with a photodiode array detector and two different ESI-MS systems, in combination with a multiple reaction monitoring (MRM) technique. The analyses indicated that, although there were no qualitative differences in their profiles, the winter variety exhibited a higher phenolic content compared to the spring variety when both were grown under non-acclimated (control) conditions. Cold acclimation, on the other hand, resulted in a significant differential accumulation of phenolic compounds in both varieties: mostly as luteolin C-glycosides and their O-methyl derivatives in the winter variety (Claire) and a derivative of hydroxycinnamoyl amide in the spring variety (Bounty). These compounds accumulated in relatively large amounts in the apoplastic compartment. The accumulation of the O-methylated derivatives was associated with a marked increase in O-methyltransferase (OMT) activity. In addition, the trimethylated flavone, 3',4',5'-trimethyltricetin was identified for the first time in the native extracts of both control and cold-acclimated wheat leaves. The accumulation of a mixture of beneficial flavonoids, such as iso-orientin, vitexin and tricin in cold acclimated wheat leaves, attests for its potential as an inexpensive source of a health-promoting supplement to the human diet.
journal_name
Phytochemistryjournal_title
Phytochemistryauthors
Moheb A,Ibrahim RK,Roy R,Sarhan Fdoi
10.1016/j.phytochem.2011.08.021subject
Has Abstractpub_date
2011-12-01 00:00:00pages
2294-307issue
18eissn
0031-9422issn
1873-3700pii
S0031-9422(11)00387-6journal_volume
72pub_type
杂志文章相关文献
PHYTOCHEMISTRY文献大全abstract：:Two glycosides, tetracentronsides A and B, were isolated from the stem bark of Tetracentron sinense Oliv., along with ten known compounds, beta-sitosterol, lupeol, betulinic acid, oleanolic acid, vanillic aldehyde, vanillic acid, maslinic acid, huazhongilexin, daucosterol and catechin. On the basis of spectral and che...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/s0031-9422(99)00457-4
更新日期：2000-04-01 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
pub_type： 杂志文章
doi：10.1016/s0031-9422(00)00297-1
更新日期：2000-12-01 00:00:00
abstract：:Two bitter stigmastane derivatives, vernoguinosterol (1) and vernoguinoside (2), have been isolated from the stem bark of Vernonia guineensis and their structures eludicated using spectroscopic methods. The new compounds exhibit trypanocidal activity. ...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/s0031-9422(01)00448-4
更新日期：2002-02-01 00:00:00
abstract：:Two new long chain alkyl p-coumaric acid esters (2-3) along with eicosanyl trans-p-coumarate (1) were isolated from chloroform extract of the roots of Tanacetum longifolium. The structures of new compounds were assigned as 21'-hydroxyheneicosanyl-4-hydroxy-(cis and trans) p-coumarate (2a, 2b) and 27'-hydroxy heptacosa...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2003.08.023
更新日期：2003-10-01 00:00:00
abstract：:A new triterpenoid saponin, 3-O-[beta-D-glucopyranosyl(1----4)-beta-D- xylopyranosyl]-28-O-beta-D-glucopyranosyl-30-methyloleanate-9(11), 12-dien- 2,3,23-trihydroxyl-28-oic acid, was isolated from the roots of Phytolacca esculenta. The structure was assigned by chemical methods and spectral analysis (1H, 13C, DEPT NMR...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/0031-9422(92)83327-u
更新日期：1992-07-01 00:00:00
abstract：:Plant defensive serine proteinase inhibitors (PIs) are known to have negative impact on digestive physiology of herbivore insects and thus have a crucial role in plant protection. Here, we have assessed the efficacy and specificity of three previously characterized inhibitory repeat domain (IRD) variants from Capsicum...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2014.01.011
更新日期：2014-05-01 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：:Lipid oxidation is a common metabolic reaction in all biological systems, appearing in developmentally regulated processes and as response to abiotic and biotic stresses. Products derived from lipid oxidation processes are collectively named oxylipins. Initial lipid oxidation may either occur by chemical reactions or ...
journal_title：Phytochemistry
pub_type： 杂志文章,评审
doi：10.1016/j.phytochem.2009.05.008
更新日期：2009-09-01 00:00:00
abstract：:An invertase (beta-D-fructofuranoside fructohydrolase, EC 3.2.1.26) from Rhodotorula glutinis was purified by ammonium sulfate fractionation, gel filtration and anion exchange chromatography. Invertase molecular weight was estimated to be 100 kDa by analytical gel filtration and 47 kDa by sodium dodecyl sulfate-polyac...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/s0031-9422(02)00336-9
更新日期：2002-11-01 00:00:00
abstract：:The incorporation of [1-13C]-labeled glucose into the irregular monoterpene artemisia ketone, the regular monoterpenes camphor and beta-thujone, the sesquiterpene germacrene D, the diterpene trans-phytol and beta-sitosterol and isofucosterol has been studied in axenic cultures of Tanacetum vulgare L. (Asteraceae). Qua...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2004.08.019
更新日期：2004-09-01 00:00:00
abstract：:Two polyacetylene glycosides, lobetyol 9-O-glc(6)-(1)rha (pratialin-A) and lobetyol 9-O-glc(6)-(1)glc(6)-(1)glc (pratialin-B), were isolated from Pratia nummularia (Campanulaceae) callus and hairy root cultures and their chemical structures were determined by analysis of spectroscopic data. From the methanol extract o...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/s0031-9422(02)00669-6
更新日期：2003-02-01 00:00:00
abstract：:A new sweet triterpene glycoside, periandrin V, was isolated from the roots of Periandra dulcis and identified as 3 beta-O-[beta-D-xylopyranosyl-(1-->2)-beta-D-glucuronopyranosyl]-25 -al-olean-18(19)-en-30-oic acid on the basis of chemical and spectral evidence. The structure of an acid-rearranged product of periandri...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/0031-9422(93)80018-n
更新日期：1993-09-01 00:00:00
abstract：:In a chemotaxonomic survey of 57 Pelargonium species, leaf exudate flavonoids were detected in 35% of the sample, mostly in trace amounts. However, chrysin and a related C-methylflavanone were identified as major leaf surface constituents of P. crispum, and a mixture of quercetin and kaempferol mono-, and di- and trim...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/s0031-9422(97)00514-1
更新日期：1997-12-01 00:00:00
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...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2019.112098
更新日期：2019-11-01 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：:Five tirucallane-type triterpenes were isolated along with nine known triterpenes from the bark of Juliania adstringens. The structures of the five triterpenes were determined by analysis of their 1H and 13C NMR and mass spectral data, and each compound exhibited growth inhibitory activity against leukemia cells (L-12...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2003.12.012
更新日期：2004-04-01 00:00:00
abstract：:The challenges and opportunities for protecting agricultural production of food and other materials will be met through exploiting the induction of defence pathways in plants to control pests, diseases and weeds. These approaches will involve processes that can be activated by application of natural products, patented...
journal_title：Phytochemistry
pub_type： 杂志文章,评审
doi：10.1016/j.phytochem.2007.09.025
更新日期：2007-11-01 00:00:00
abstract：:Along with three known drimanes, polygodial. 1-beta-(p-methoxycinnamoyl) polygodial and mukaadial, the sesquiterpene drimane named drimanial was isolated from the bark of Drimys winteri (Winteraceae). Its structure was elucidated based on spectroscopic evidence. Drimanial exhibited antinociceptive action against aceti...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/s0031-9422(00)00515-x
更新日期：2001-05-01 00:00:00
abstract：:Three phenolic glycosides 5-O-{[5''-O-E-(4'''-O-threo-guaiacylglycerol)-feruloyl]-beta-apiofuranosyl-(1-->2)-beta-xylopyranosyl} gentisic acid, 5-O-[(5''-O-vanilloyl)-beta-apiofuranosyl-(1-->2)-beta-xylopyranosyl] gentisic acid and 1-O-[E-(4'''-O-threo-guaiacylglycerol)-feruloyl]-3-O-beta-galacturonopyranosyl glycerol...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2009.07.021
更新日期：2009-07-01 00:00:00
abstract：:Among the four cold shock domain proteins (CSDPs) identified in Arabidopsis thaliana, it has recently been shown that CSDP1 harboring seven CCHC-type zinc fingers, but not CSDP2 harboring two CCHC-type zinc fingers, function as a RNA chaperone during cold adaptation. However, the structural features relevant to this d...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2009.12.006
更新日期：2010-04-01 00:00:00
abstract：:Triterpene saponins 1-8 were isolated from the aerial parts of Gynostemma pubescens. Among them, compounds 1-4, 8 possess carboxylic groups at both C-21 and C-29, 5 contains a carboxylic group at C-21 and an aldehyde function at C-29, whereas 6 and 7 contain carboxylic groups at C-21 and hydroxymethylene groups at C-2...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2007.05.005
更新日期：2007-07-01 00:00:00
abstract：:Stem bark of Hippocratea excelsa afforded six pentacyclic triterpenes, five oleanane and one ursane types. They were identified as 11beta,21beta-dihydroxy-olean-12-ene-3-one (2), 3alpha,11alpha,21beta-trihydroxy-olean-12-ene (3), 3alpha,21beta-dihydroxy-11alpha-methoxy-olean-12-ene (4), 3alpha,21beta-dihydroxy-olean-9...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2007.10.016
更新日期：2008-02-01 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：:The results of a screening study, in which a total of 82 Finnish plant species were studied for their ellagitannin composition and content, are presented. The total ellagitannin content was determined by HPLC-DAD, the detected ellagitannins were further characterized by HPLC-ESI-QTOF-MS and divided into four structura...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2015.03.002
更新日期：2015-08-01 00:00:00
abstract：:Investigations of the stem and root bark of Myrica arborea (Myricaceae) have yielded two novel diarylheptanoids, myricarborin and 11-O-beta-D-xylopyranosylmyricanol along with the known myricanol and 5-O-beta-D-glucopyranosylmyricanol. The structures of the novel compounds were determined by spectroscopic methods. ...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/s0031-9422(00)00164-3
更新日期：2000-08-01 00:00:00
abstract：:This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy. ...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2012.03.001
更新日期：2012-03-16 00:00:00
abstract：:Eleven benzofuran dimers, (+)-dieupachinins A-E, (-)-dieupachinins A-E and dieupachinin F, a benzofuran trimer trieupachinin A, as well as seven known compounds were isolated from the roots of Eupatorium chinense. The enantiomers of racemates dieupachinins A-E were separated by chiral HPLC. The structures with absolut...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2015.11.013
更新日期：2016-02-01 00:00:00
abstract：:Acylamidohydrolases from higher plants have not been characterized or cloned so far. AtAMI1 is the first member of this enzyme family from a higher plant and was identified in the genome of Arabidopsis thaliana based on sequence homology with the catalytic-domain sequence of bacterial acylamidohydrolases, particularly...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/s0031-9422(02)00563-0
更新日期：2003-02-01 00:00:00
abstract：:The new concept that Na/K-ATPase acts as a receptor prompted us to look for new ligands from Callicarpa kwangtungensis Chun. Using column chromatography, an undescribed phenethyl alcohol glycoside, callicarpanoside A, and an undescribed benzyl alcohol glycoside, callicarpanoside B, along with twelve known polyphenols ...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2020.112577
更新日期：2021-01-01 00:00:00
abstract：:Gynostemma pentaphyllum is a popular functional food, and it is also used as a traditional medicine in Asia. In this study, five previously undescribed triterpenes, gypensapogenin M, gypensapogenin N, gypensapogenin O, gypensapogenin P, and gypensapogenin Q, together with five known compounds were isolated from the hy...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2017.09.021
更新日期：2017-12-01 00:00:00
