Evolution of alkaloid biosynthesis in the genus Narcissus.

abstract：:Radicinin is a phytotoxic and antibiotic metabolite produced by some phytopathogenic fungi. Precursor administration and cell-free experiments with deoxyradicinin and radicinin were carried out in Bipolaris coicis H13-3. When deoxyradicinin was administered to the fungus, radicinin and 3-epi-radicinin formed. When rad...

journal_title：Phytochemistry

authors： Suzuki M,Sakuno E,Ishihara A,Tamura J,Nakajima H

更新日期：2012-03-01 00:00:00

abstract：:Chemical examination of the ethyl acetate solubles of the CH(3)OH:CH(2)Cl(2) (1:1) extract of the roots of Excoecaria agallocha L. collected from Godavary estuary resulted in the isolation of three more new diterpenoids, agallochins M-O (1-3). The structures of the new diterpenoids were elucidated by a study of their ...

journal_title：Phytochemistry

authors： Anjaneyulu AS,Rao VL

更新日期：2003-02-01 00:00:00

abstract：:Five undescribed xanthones, 4-methoxypyranojacareubin, 4-hydroxy-3-prenylpyranoxanthone, 1-hydroxy-5,7-dimethoxyxanthone, 5-hydroxy-1,6,7-trimethoxyxanthone and 2-hydroxy-1,5-dimethoxyxanthone, together with thirty-three known xanthones were isolated from the roots of Mesua ferrea L. The structures of all isolated xan...

journal_title：Phytochemistry

authors： Chukaew A,Saithong S,Chusri S,Limsuwan S,Watanapokasin R,Voravuthikunchai SP,Chakthong S

更新日期：2019-01-01 00:00:00

abstract：:Three iridoid glycosides, picrorosides A (1), B (2) and C (3), and a cucurbitacin glycoside, scrophoside A (4), were isolated from the rhizomes of Neopicrorhiza scrophulariiflora (Scrophulariaceae), along with two known iridoid glycosides, picrosides I (5) and II (6), and three known cucurbitacin glycosides (7-9). The...

journal_title：Phytochemistry

authors： Kim IH,Uchiyama N,Kawahara N,Goda Y

更新日期：2006-12-01 00:00:00

abstract：:The bean aphid, Megoura crassicauda Mordvilko, feeds selectively on plants belonging to the genus Vicia (Fabaceae). However, it never infests the tiny vetch, V. hirsuta (L.) Gray. The aphid appeared to discriminate between host and non-host plants by tasting specific chemicals during penetration of its stylet into the...

journal_title：Phytochemistry

authors： Ohta N,Mori N,Kuwahara Y,Nishida R

更新日期：2006-03-01 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：:The bark of Garcinia merguensis yielded 10 xanthones, merguenone, 1,5-dihydroxy-6'-methyl-6'-(4-methyl-3-pentenyl)-pyrano(2',3':3,2)-xanthone, subelliptenone H, 8-deoxygartanin, rheediaxanthone A, morusignin G, 6-deoxyjacareubin, 1,3,5-trihydroxy-4,8-di(3-methylbut-2-enyl)-xanthone, rheediachromenoxanthone and 6-deoxy...

journal_title：Phytochemistry

authors： Nguyen LH,Vo HT,Pham HD,Connolly JD,Harrison LJ

更新日期：2003-06-01 00:00:00

abstract：:Four undescribed 23,24-O-isopropylidene-19(18 → 17)-abeo-28-noroleanane-derived spirocyclic triterpenoids and an undescribed 28-noroleanane-derived spirocyclic triterpenoid, together with five known 28-noroleanane-derived spirocyclic triterpenoids, were isolated and identified. In addition, three undescribed iridoid g...

journal_title：Phytochemistry

authors： Le DD,Nguyen DH,Zhao BT,Kim JA,Kim SK,Min BS,Choi JS,Woo MH

更新日期：2018-09-01 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：:Seeds of 57 species of the genus Trifolium have been studied for the occurrence and concentration of soyasapogenol B glycosides and flavonoids. It was shown that all tested species contained soyasaponin I and in some species astragaloside VIII and/or 22-O-glucoside and 22-O-diglucoside of soyasaponin I were also prese...

journal_title：Phytochemistry

authors： Oleszek W,Stochmal A

更新日期：2002-09-01 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

authors： Selmar D,Irandoost Z,Wray V

更新日期：1996-10-01 00:00:00

abstract：:Using a bioassay for inhibition of plant growth and a combination of two countercurrent chromatographies: rotation locular countercurrent chromatography and droplet countercurrent chromatography, two biologically active glycosidal alkaloids, solasonine and solamargine were isolated from fresh ripe fruit of Solanum inc...

journal_title：Phytochemistry

authors： Fukuhara K,Kubo I

更新日期：1991-01-01 00:00:00

abstract：:Six coumarins have been isolated from the fruits and the stem bark of Calophyllum dispar (Clusiaceae). The structures of these minor components were established by means of spectroscopic analysis, including extensive 2D NMR studies. Some of these coumarins exhibited a significant cytotoxic activity against KB cells. ...

journal_title：Phytochemistry

authors： Guilet D,Séraphin D,Rondeau D,Richomme P,Bruneton J

更新日期：2001-10-01 00:00:00

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 chemica...

journal_title：Phytochemistry

authors： Krohn K,Steingröver K,Srinivasa Rao M

更新日期：2002-12-01 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

authors： McIntosh C

更新日期：2012-03-16 00:00:00

abstract：:Glucosinolates are found in plants of the order Brassicales and hydrolyzed to different breakdown products, particularly after tissue damage. In Barbarea vulgaris R.Br. (Brassicaceae), the dominant glucosinolate in the investigated "G-type" is glucobarbarin, (S)-2-hydroxy-2-phenylethylglucosinolate. Formation of the n...

journal_title：Phytochemistry

authors： Agerbirk N,Matthes A,Erthmann PØ,Ugolini L,Cinti S,Lazaridi E,Nuzillard JM,Müller C,Bak S,Rollin P,Lazzeri L

更新日期：2018-09-01 00:00:00

abstract：:Phytoalexins are inducible chemical defenses produced by plants in response to diverse forms of stress, including microbial attack. Our search for phytoalexins from cruciferous plants resistant to economically important fungal diseases led us to examine stinkweed or pennycress (Thlaspi arvense), a potential source of ...

journal_title：Phytochemistry

authors： Pedras MS,Chumala PB,Suchy M

更新日期：2003-11-01 00:00:00

abstract：:The secondary metabolite contents and genetic profiles of six Hypericum species (H. barbatum Jacq., H. hirsutum L., H. linarioides Bosse, H. maculatum Crantz, H. rumeliacum Boiss. and H. tetrapterum Fries), collected from different locations in Serbia, have been analyzed. Methanol extracts of the aerial parts of the p...

journal_title：Phytochemistry

authors： Smelcerovic A,Verma V,Spiteller M,Ahmad SM,Puri SC,Qazi GN

更新日期：2006-01-01 00:00:00

abstract：:Chemical investigation of the methanol extract of the fertile form of Roccella montagnei collected in Vietnam afforded twelve secondary metabolites, including five new montagnetol derivatives, orsellinylmontagnetols A-D and a furanyl derivative together with seven known compounds. Their chemical structures were elucid...

journal_title：Phytochemistry

authors： Duong TH,Huynh BLC,Chavasiri W,Chollet-Krugler M,Nguyen VK,Nguyen THT,Hansen PE,Le Pogam P,Thüs H,Boustie J,Nguyen KPP

更新日期：2017-05-01 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

authors： Yang Z,Chen Q,Hu L

更新日期：2007-07-01 00:00:00

abstract：:Individual leaves of the three most common chemotypes of Melaleuca alternifolia were examined both quantitatively and qualitatively for volatile constituents from the emergence of the first true leaves, through to 6-week-old tenth leaf set material. The 1,8-cineole and terpinolene chemotypes were investigated and comp...

journal_title：Phytochemistry

authors： Russell MF,Southwell IA

更新日期：2003-03-01 00:00:00

abstract：:Two furanoditerpenoid lactones, were isolated from the seeds of Caesalpinia minax Hance. Their structures and stereochemistry have been established by spectral data and single crystal X-ray analysis. ...

journal_title：Phytochemistry

authors： Jiang RW,But PP,Ma SC,Mak TC

更新日期：2001-06-01 00:00:00

abstract：:Three new spirostanol saponins and two new furostanol saponins were isolated from the fresh leaves of Cordyline stricta. Their structures were elucidated on the basis of spectroscopic analysis, including various 2D NMR techniques, hydrolysis, and by comparison of spectral data of known compounds. Two of the isolated s...

journal_title：Phytochemistry

authors： Mimaki Y,Kuroda M,Takaashi Y,Sashida Y

更新日期：1998-01-01 00:00:00

abstract：:Camptothecin (CPT) is a modified monoterpene indole alkaloid produced by Camptotheca acuminata (Nyssaceae), Nothapodytes foetida, Pyrenacantha klaineana, Merrilliodendron megacarpum (Icacinaceae), Ophiorrhiza pumila (Rubiaceae), Ervatamia heyneana (Apocynaceae) and Mostuea brunonis (Gelsemiaceae), species belonging to...

journal_title：Phytochemistry

authors： Lorence A,Nessler CL

更新日期：2004-10-01 00:00:00

abstract：:During the search for new protein tyrosine phosphatase (PTP) 1B inhibitors, EtOH extracts from the aerial parts of Lantana camara L. (lantana) collected at Manado (Indonesia) and two subtropical islands in Japan (Ishigaki and Iriomote Islands, Okinawa) exhibited potent inhibitory activities against PTP1B in an enzyme ...

journal_title：Phytochemistry

authors： Abdjul DB,Yamazaki H,Maarisit W,Rotinsulu H,Wewengkang DS,Sumilat DA,Kapojos MM,Losung F,Ukai K,Namikoshi M

更新日期：2017-12-01 00:00:00

abstract：:The flavonoid profiles of two monotypic genera, Teucridium and Tripora, have been studied by analytical methods. These genera were formerly placed in the Verbenaceae, but are now classified in the Lamiaceae, subfamily Ajugoideae. The major flavonoids of both genera were identified as glycosides of scutellarein 4'-meth...

journal_title：Phytochemistry

authors： Grayer RJ,Veitch NC,Kite GC,Paton AJ,Garnock-Jones PJ

更新日期：2002-08-01 00:00:00

abstract：:High diversity of fatty acid (FA) composition of endosymbiotic dinoflagellates of the Symbiodinium group (zooxanthellae) isolated from different cnidarian groups has been found. To explain this diversity, FA composition of the total lipids of pure symbiont fractions (SF) and host cell tissue fractions (HF) isolated fr...

journal_title：Phytochemistry

authors： Imbs AB,Yakovleva IM,Dautova TN,Bui LH,Jones P

更新日期：2014-05-01 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：: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

authors： Park SJ,Kwak KJ,Jung HJ,Lee HJ,Kang H

更新日期：2010-04-01 00:00:00

abstract：:Strychnos nux-vomica L. (Loganiaceae) is famous for its monomeric alkaloid content, such as strychnine, a convulsant poison. The stem bark of the tree is traditionally used to treat intermittent fever in South East Asia. In various studies, it appeared that dimeric indolo-monoterpenic alkaloids possess a promising act...

journal_title：Phytochemistry

authors： Jonville MC,Dive G,Angenot L,Bero J,Tits M,Ollivier E,Frédérich M

更新日期：2013-03-01 00:00:00