The bio-transformation of ent-19-hydroxykaur-16-en-15-one by Cephalosporium aphidicola.

abstract：:Stereumins Q-U, together with known stereumins A, B, K, L, and N, as well as ent-strobilols E and G were isolated from the culture of Stereum cf. sanguinolentum BCC 22926. Their structures were elucidated by extensive spectroscopic analyses. The absolute configurations of stereumins A and Q, as well as ent-strobilol E...

journal_title：Phytochemistry

authors： Bunyapaiboonsri T,Yoiprommarat S,Nopgason R,Komwijit S,Veeranondha S,Puyngain P,Boonpratuang T

更新日期：2014-09-01 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

authors： Shi Q,Bao Z,Zhu Z,He Y,Qian Q,Yu J

更新日期：2005-07-01 00:00:00

abstract：:The botanical classification of the huge genus Drosera remains controversial since long. In the present study, the pattern of major phenolic compounds in ten Drosera species belonging to seven different subgenera and/or sections of the genus was investigated for chemotaxonomic allocation. The composition of flavonoids...

journal_title：Phytochemistry

authors： Braunberger C,Zehl M,Conrad J,Wawrosch C,Strohbach J,Beifuss U,Krenn L

更新日期：2015-10-01 00:00:00

abstract：:Soluble and microsomal glutathione S-transferase activities for five model xenobiotics (nitrobenzene derivatives), two pesticidal xenobiotics (atrazine and fluorodifen), and a natural substrate (cinnamic acid), were determined in 59 different plant species and four plant cell suspension cultures. These enzyme activiti...

journal_title：Phytochemistry

authors： Pflugmacher S,Schröder P,Sandermann H Jr

更新日期：2000-06-01 00:00:00

abstract：:Unlike most Nicotiana species, leaf tissues of the globally significant weed Nicotiana glauca Grah. (Argentinian tree tobacco) contains anabasine as the main component of its alkaloid pool, with concentrations typically increasing several fold in response to wounding of plants. The Δ(1)-piperidinium ring of anabasine ...

journal_title：Phytochemistry

authors： DeBoer KD,Dalton HL,Edward FJ,Ryan SM,Hamill JD

更新日期：2013-02-01 00:00:00

abstract：:Although the mechanism of accumulation of C8-C16 saturated fatty acids in seed oils has been well-studied, the control of stearic (C18:0) acid deposition in high stearate seed fat is still unclear. We investigated the mechanism that regulates high level of stearate and oleate (C18:1) accumulation in mango (Mangifera i...

journal_title：Phytochemistry

authors： Bhattacharjee A,Ghosh SK,Neogi K,Aich A,Willard B,Kinter M,Sen SK,Ghosh D,Ghosh S

更新日期：2011-02-01 00:00:00

abstract：:A phytochemical investigation of the leaf exudate of Aloe marlothii has resulted in the isolation of a new chromone (7-O-methylaloeresin A) and a new anthrone (5-hydroxyaloin A 6'-O-acetate). Furthermore 7-O-methylaloesin was isolated as a natural product for the first time from the leaf exudate of Aloe rupestris. The...

journal_title：Phytochemistry

authors： Bisrat D,Dagne E,van Wyk BE,Viljoen A

更新日期：2000-12-01 00:00:00

abstract：:The enzymology of anthranilate synthase (EC 5.4.99.6) in microorganisms and plants is reviewed. Aminoacid sequences of the enzyme subunits in different species are compared, and the mechanism of reaction is discussed. ...

journal_title：Phytochemistry

authors： Romero RM,Roberts MF,Phillipson JD

更新日期：1995-05-01 00:00:00

abstract：:The cyclotides are currently the largest known family of head-to-tail cyclic proteins. The complex structure of these small plant proteins, which consist of approximately 30 amino acid residues, contains both a circular peptide backbone and a cystine knot, the combination of which produces the cyclic cystine knot moti...

journal_title：Phytochemistry

authors： Herrmann A,Burman R,Mylne JS,Karlsson G,Gullbo J,Craik DJ,Clark RJ,Göransson U

更新日期：2008-02-01 00:00:00

abstract：:3β-Hydroxy-5β-cholestan-6-one was identified in the EtOAc extract of Ajuga hairy roots by micro-analysis using LC-MS/MS in the multiple reaction mode (MRM). Furthermore, administration of (2,2,4,4,7,7-(2)H6)- and (2,2,4,4,6,7,7-(2)H7)-cholesterols to the hairy roots followed by LC-MS/MS analysis of the EtOAc extract o...

journal_title：Phytochemistry

authors： Fujimoto Y,Maeda I,Ohyama K,Hikiba J,Kataoka H

更新日期：2015-03-01 00:00:00

abstract：:The ether extract of the Chilean liverwort Lepicolea ochroleuca yielded three sesquiterpenoids, ent-4 beta-Hydroxy-10 alpha-methoxyaromadendrane, ent-3 beta-Hydroxyspathulenol, and 1,10-Dioxotayloriane, as minor components. The major components were ledol and 13-epi-neoverrucosan-5 beta-ol, four other minor fusicoccan...

journal_title：Phytochemistry

authors： Liu HJ,Wu CL,Becker H,Zapp J

更新日期：2000-04-01 00:00:00

abstract：:Coumarins and meroterpene from the fruits of Cullen corylifolium were evaluated for their ability to bind and activate human estrogen receptor α (hERα) by a combination of in vitro studies and molecular dynamics simulations. The recombinant hERα ligand binding domain (hERα-LBD) was produced in BL21 (DE3)pLysS and the ...

journal_title：Phytochemistry

authors： Zhang T,Zhong S,Hou L,Li T,Xing X,Guan T,Zhang J,Wang Y

更新日期：2018-08-01 00:00:00

abstract：:Inspired by the recently discovered phenomenon of "horizontal natural product transfer" we investigated the putative uptake of phenolic specialized metabolites. Umbelliferone was chosen for this case study, since this coumarin as well as its derivatives can easily be determined by HPLC analyses. Barley (Hordeum vulgar...

journal_title：Phytochemistry

authors： Hijazin T,Radwan A,Abouzeid S,Dräger G,Selmar D

更新日期：2019-01-01 00:00:00

abstract：:A 13-membered N-formylcyclopeptide alkaloid, nummularine-T, has been isolated from the bark of Zizyphus nummularia and its structure established by spectroscopic and chemical methods. It provides the fourth example of a naturally occurring N-formyl cyclopeptide alkaloid. ...

journal_title：Phytochemistry

authors： Singh B,Pandey VB

更新日期：1995-01-01 00:00:00

abstract：:There are several factors thought to assist invasive weeds in colonization of ecosystems. One of these factors is allelopathy, the negative effect of chemicals produced by one plant on neighboring plants, frequently mediated through root exudates and other plant leachates. Acroptilon repens (Asteraceae) is one of the ...

journal_title：Phytochemistry

authors： Quintana N,Weir TL,Du J,Broeckling CD,Rieder JP,Stermitz FR,Paschke MW,Vivanco JM

更新日期：2008-10-01 00:00:00

abstract：:Petunia hybrida and Citrus paradisi have significantly different flavonoid accumulation patterns. Petunia sp. tend to accumulate flavonol glycosides and anthocyanins while Citrus paradisi is known for its accumulation of flavanone diglycosides. One possible point of regulation of flavanone metabolism is flavanone 3-hy...

journal_title：Phytochemistry

authors： Pelt JL,Downes WA,Schoborg RV,McIntosh CA

更新日期：2003-09-01 00:00:00

abstract：:Expression of Delta(12)-oleic acid desaturase-related fatty acid conjugases from Calendula officinalis, Momordica charantia, and Vernicia fordii in seeds of soybean (Glycine max) or an Arabidopsis thaliana fad3/fae1 mutant was accompanied by the accumulation of the conjugated fatty acids calendic acid or alpha-eleoste...

journal_title：Phytochemistry

authors： Cahoon EB,Dietrich CR,Meyer K,Damude HG,Dyer JM,Kinney AJ

更新日期：2006-06-01 00:00:00

abstract：:Glucosylation is a predominant flavonoid modification reaction affecting the solubility, stability, and subsequent bioavailability of these metabolites. Flavonoid glycosides affect taste characteristics in citrus making the associated glucosyltransferases particularly interesting targets for biotechnology applications...

journal_title：Phytochemistry

authors： Owens DK,McIntosh CA

更新日期：2009-07-01 00:00:00

abstract：:The first seco-uleine alkaloids, manilamine (1) (18-hydroxy-19,20-dehydro-7,21-seco-uleine) and N4-methyl angustilobine B (2), were isolated from the (pH 5) alkaloid extract of Philippine Alstonia scholaris leaves together with the known indole alkaloids 19,20-(E)-vallesamine (3), angustilobine B N4-oxide (4), 20(S)-t...

journal_title：Phytochemistry

authors： Macabeo AP,Krohn K,Gehle D,Read RW,Brophy JJ,Cordell GA,Franzblau SG,Aguinaldo AM

更新日期：2005-05-01 00:00:00

abstract：:Psiadia arguta (Asteraceae) is endemic to the island of Mauritius in the Indian Ocean. The species is traditionally used to treat various ailments, such as its use as an expectorant or for the treatment of bronchitis and asthma. Preliminary biological screenings have displayed the antimalarial (Plasmodium falciparum) ...

journal_title：Phytochemistry

authors： Mahadeo K,Grondin I,Herbette G,Palama TL,Bouchemal N,Soulange J,Laulloo SJ,Sadeyen J,Humeau L,Frederich M,Gauvin-Bialecki A,Kodja H

更新日期：2020-08-01 00:00:00

abstract：:Acylation is a prevalent chemical modification that to a significant extent accounts for the tremendous diversity of plant metabolites. To catalyze acyl transfer reactions, higher plants have evolved acyltransferases that accept beta-acetal esters, typically 1-O-glucose esters, as an alternative to the ubiquitously oc...

journal_title：Phytochemistry

authors： Stehle F,Brandt W,Stubbs MT,Milkowski C,Strack D

更新日期：2009-10-01 00:00:00

abstract：:Withania somnifera (L.) Dunal (Solanaceae), commonly known as Ashwagandha, is one of the most valued Indian medicinal plant with several pharmaceutical and nutraceutical applications. Metabolic profiling was performed by GC-MS and NMR spectroscopy on the fruits obtained from four chemotypes of W. somnifera. A combinat...

journal_title：Phytochemistry

authors： Bhatia A,Bharti SK,Tewari SK,Sidhu OP,Roy R

更新日期：2013-09-01 00:00:00

abstract：:A phytochemical study of the asteraceous herb Pulicaria crispa (Forssk.) Oliv. resulted in the characterisation of three guaianolide sesquiterpenes, 2alpha,4alpha-dihydroxy-7alphaH,8alphaH,10alphaH-guaia-1(5),11(13)-dien-8beta,12-olide (1), 1alpha,2alpha-epoxy-4beta-hydroxy-5alphaH,7alphaH,8alphaH,10alphaH-guaia-11(13...

journal_title：Phytochemistry

authors： Stavri M,Mathew KT,Gordon A,Shnyder SD,Falconer RA,Gibbons S

更新日期：2008-06-01 00:00:00

abstract：:Sorghum SbSTS1, a pathogen inducible gene, was previously demonstrated to encode an enzyme with stilbene synthase activity. In this study, we attempt to identify the stilbene derivatives that accumulate in infected sorghum seedlings after inoculation with the anthracnose pathogen Colletotrichum sublineolum. Scanning f...

journal_title：Phytochemistry

authors： Yu CK,Shih CH,Chu IK,Lo C

更新日期：2008-02-01 00:00:00

abstract：:The glycosylation of lipophilic small molecules produces many important plant secondary metabolites. The majority of these are O-glycosides with relatively fewer occurring as glucose esters of aromatic or aliphatic acids. In particular, monoterpene acid glucose esters have much lower structural diversity and distribut...

journal_title：Phytochemistry

authors： Goodger JQ,Woodrow IE

更新日期：2011-12-01 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

authors： Rubio MC,Runco R,Navarro AR

更新日期：2002-11-01 00:00:00

abstract：:Chaga mushroom, Inonotus obliquus, was used as food and nutrient food and traditional herbs in Russia, China and Japan, with anti-inflammatory and anticancer activities. Chemical investigations of the fruiting bodies of Chaga were carried to uncover the bioactive metabolites. As a result, seven undescribed lanostane-t...

journal_title：Phytochemistry

authors： Kou RW,Han R,Gao YQ,Li D,Yin X,Gao JM

更新日期：2021-01-09 00:00:00

abstract：:Two aristololactams, aristololactam GI (1) and aristololactam GII (2), and three aporphines, fissistigamide A (3), fissistigamide B (4) and fissistigmine (5), together with nineteen known alkaloids, one flavone and one anthraquinone were isolated from the ethanol extracts of the stems of Fissistigma oldhamii (Annonace...

journal_title：Phytochemistry

authors： Ge YW,Zhu S,Shang MY,Zang XY,Wang X,Bai YJ,Li L,Komatsu K,Cai SQ

更新日期：2013-02-01 00:00:00

abstract：:Asclepias fruticosa afforded, in addition to five known pregnane glycosides and 11 known cardenolide glycosides, four new pregnane glycosides and eleven new cardenolide glycosides. Structures of these compounds were elucidated by spectroscopic methods and from chemical evidence. ...

journal_title：Phytochemistry

authors： Warashina T,Noro T

更新日期：1994-09-01 00:00:00

abstract：:Five undescribed compounds were separated from Abrus mollis leaves, including two truxillate forms (abrusamide D, H) and three truxinate forms (abrusamide E, F, G). The absolute configuration of abrusamide D was determined by X-ray crystallography. Abrusamide A was reassessed and corrected to be β-truxinate configurat...

journal_title：Phytochemistry

authors： Yuan X,Liu Y,Zhao H,Men L,He C,Qiu Y,Yu Q,Li K,Qi L,Chen D

更新日期：2021-01-01 00:00:00