Two glycosides from the stem bark of Tetracentron sinense.

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

authors： Ito A,Yasumoto K,Kasai R,Yamasaki K

更新日期：1994-08-01 00:00:00

abstract：:The compositions of the essential oils obtained from ten populations of Thymus caespititius grown on S. Jorge (Azores) were studied by GC and GC-MS. All the oils analysed were dominated by their monoterpene fraction (69-9%). The sesquiterpene fraction was rather small (4-17%) and consisted mainly of oxygen-containing ...

journal_title：Phytochemistry

authors： Pereira SI,Santos PA,Barroso JG,Figueiredo AC,Pedro LG,Salgueiro LR,Deans SG,Scheffer JJ

更新日期：2000-10-01 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

authors： Lee GT,Kim WJ,Cho YD

更新日期：2002-12-01 00:00:00

abstract：:Ragi bifunctional α-amylase-trypsin inhibitor (RBI) of Eleusine coracana (L.) Gaertn. (finger millet) simultaneously inhibits α-amylase and trypsin. In continuation of previous work on the cloning, expression and characterization of RBI, a bidirectional promoter from finger millet was explored on the basis of experime...

journal_title：Phytochemistry

authors： Sen S,Dutta SK

更新日期：2016-09-01 00:00:00

abstract：:An investigation of the combined leaf and stem of Lithospermum caroliniense afforded two new pentacyclic triterpenoids based on the olean-12-ene and taraxast-12-ene skeletal types. The structures of these compounds were elucidated on the basis of spectral analysis as 1 alpha,3 beta,23-trihydroxyolean-12-ene-28-oic aci...

journal_title：Phytochemistry

authors： Fullas F,Wani MC,Wall ME,Tucker JC,Beecher CW,Kinghorn AD

更新日期：1996-12-01 00:00:00

abstract：:The antimicrobially active EtOH extracts of Maytenus heterophylla yielded a new dihydroagarofuran alkaloid,1beta-acetoxy-9alpha-benzoyloxy-2beta,6alpha-dinicotinoyloxy-beta-dihydroagarofuran, together with the known compounds beta-amyrin, maytenfolic acid, 3alpha-hydroxy-2-oxofriedelane-20alpha-carboxylic acid, lup-20...

journal_title：Phytochemistry

authors： Orabi KY,Al-Qasoumi SI,El-Olemy MM,Mossa JS,Muhammad I

更新日期：2001-10-01 00:00:00

abstract：:Papain (EC 3.4.22.2), the archetypal cysteine protease of C1 family, is of considerable commercial significance. In order to obtain substantial quantities of active papain, the DNA coding for propapain, the papain precursor, has been cloned and expressed at a high level in Escherichia coli BL21(DE3) transformed with t...

journal_title：Phytochemistry

authors： Choudhury D,Roy S,Chakrabarti C,Biswas S,Dattagupta JK

更新日期：2009-03-01 00:00:00

abstract：:Salvia is the largest genus of the Lamiaceae family, with over 900 species in the world which about 60 species are distributed in Iran, 17 of them are endemic. In Iran, Salvia species have been used to treat various diseases with a wide spectrum of pharmacological activity in vitro and in vivo. The present review summ...

journal_title：Phytochemistry

authors： Askari SF,Avan R,Tayarani-Najaran Z,Sahebkar A,Eghbali S

更新日期：2020-12-26 00:00:00

abstract：:Carrageenans extracted from gametophytic and sporophytic Chondrus crispus were analysed by hydrolysis, KCl fractionation and 1H NMR spectroscopy. The carrageenan from gametophytic plants is composed predominantly of two KCl insoluble fractions which contain kappa-carrageenan as the major component with 1-carrageenan a...

journal_title：Phytochemistry

authors： Matsuhiro B,Urzua CC

更新日期：1992-02-01 00:00:00

abstract：:Three phenylpropanoid glycosides named ningposides A (3-O-acetyl-2-O-feruloyl-alpha-L-rhamnopyranose), B (4-O-acetyl-2-O-feruloyl-alpha-L-rhamnopyranose) and C (3-O-acetyl-2-O-p-hydroxycinnamoyl-alpha-L-rhamnopyranose) along with the known compounds sibirioside A, cistanoside D, angoroside C, acteoside, decaffeoylacte...

journal_title：Phytochemistry

authors： Li YM,Jiang SH,Gao WY,Zhu DY

更新日期：2000-08-01 00:00:00

abstract：:The essential oil of aerial parts of Capillipedium parviflorum (family Poaceae) was obtained by hydrodistillation in 0.4% yield on dry weight basis. The oil was analysed by capillary GC and GC-MS techniques. Two new compounds from plant source 4-nonanol 51.7% and 4-undecanone 23.5% predominated in the essential oil an...

journal_title：Phytochemistry

authors： Mahmood U,Kaul VK,Acharya R

更新日期：2004-07-01 00:00:00

abstract：:The incomplete structure proposed in 1972 for a unique "flavone-polysaccharide" compound, MF-1, from the liverwort Monoclea forsteri, has been re-examined. Rather than the proposed 8-methoxyluteolin structure with polysaccharides attached to the 7- and 4'-hydroxyls, MF-1 has been shown to be primarily a mixture of pen...

journal_title：Phytochemistry

authors： Markham KR

更新日期：2003-07-01 00:00:00

abstract：:In addition to hecogenin 3-O-beta-D-glucopyranosyl(1--> 4)-beta-D-galactopyranoside, two new steroidal saponins were isolated from the aerial parts of Tribulus terrestris L. On the basis of chemical and spectroscopic evidence, especially 2D NMR spectroscopic techniques, the structures of the new saponins were establis...

journal_title：Phytochemistry

authors： Wu G,Jiang S,Jiang F,Zhu D,Wu H,Jiang S

更新日期：1996-08-01 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

authors： Suttisri R,Chung MS,Kinghorn AD,Sticher O,Hashimoto Y

更新日期：1993-09-01 00:00:00

abstract：:Four new xanthones have been isolated from the roots of Hypericum roeperanum. Their structures have been established by a combination of spectroscopic and chemical methods as 1,6-dihydroxy-5-methoxy-4',5'-dihydro-4',4',5'-trimethylfurano- (2',3':3,4)-xanthone (5-O-methyl-2-deprenylrheediaxanthone B), 1,6-dihydroxy-5-m...

journal_title：Phytochemistry

authors： Rath G,Potterat O,Mavi S,Hostettmann K

更新日期：1996-09-01 00:00:00

abstract：:Ternary complexes consisting of a R2R3-MYB, a bHLH and a WD40 protein (MBW complexes) regulate trichome formation and anthocyanin synthesis in plants. Small R3-MYBs interact with the MBW complexes to exert a negative feedback, and thereby participate in regulation of epidermal cell fate, for example trichome numbers a...

journal_title：Phytochemistry

authors： Nemie-Feyissa D,Olafsdottir SM,Heidari B,Lillo C

更新日期：2014-02-01 00:00:00

abstract：:An investigation into the antibacterial properties of Hypericum foliosum Aiton. (Guttiferae) has led to the isolation of a new bioactive acylphloroglucinol natural product which by NMR spectroscopy and mass spectrometry was characterised as 1,3,5-trihydroxy-6-[2''',3'''-epoxy-3'''-methyl-butyl]-2-[2''-methyl-butanoyl]...

journal_title：Phytochemistry

authors： Gibbons S,Moser E,Hausmann S,Stavri M,Smith E,Clennett C

更新日期：2005-06-01 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：:The genome of Brachypodium distachyon, also known as purple false brome, was fully sequenced in 2008 largely in response to the demand for a model plant for temperate grasses. A comparative study of the primary cell walls of seedlings of B. distachyon, Hordeum vulgare and Triticum aestivum was carried out. The cell wa...

journal_title：Phytochemistry

authors： Christensen U,Alonso-Simon A,Scheller HV,Willats WG,Harholt J

更新日期：2010-01-01 00:00:00

abstract：:A sulfated fucan containing fraction (SmWE) was isolated from water extract of the brown seaweed Stoechospermum marginatum collected from the Arabian Sea. Anion exchange chromatography of the crude fraction results in the production of a sulfated fucan (F3) having a molecular mass of 40 kDa and specific rotation [alph...

journal_title：Phytochemistry

authors： Adhikari U,Mateu CG,Chattopadhyay K,Pujol CA,Damonte EB,Ray B

更新日期：2006-11-01 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

authors： Patten AM,Cardenas CL,Cochrane FC,Laskar DD,Bedgar DL,Davin LB,Lewis NG

更新日期：2005-09-01 00:00:00

abstract：:A new bisdesmodic triterpenoid saponin, dulcin was isolated from the seeds of Pithecellobium dulce and was identified as 3-O-[beta-D-glucopyranosyl (1-->2)-alpha-L-arabinopyranosyl]- 28-O-[beta-D-xylopyranosyl (1-->6)-beta-D-glucopyranosyl]-echinocystic acid. The known oleanolic acid saponin PE, oleanolic acid 3-O-bet...

journal_title：Phytochemistry

authors： Sahu NP,Mahato SB

更新日期：1994-11-01 00:00:00

abstract：:Glucosinolates are plant secondary metabolites that are part of a plant defence system against pathogens and pests, the myrosinase-glucosinolate system, in which glucosinolates get activated by enzymic degradation through thioglucoside glucohydrolases called myrosinases. Epithiospecifier protein (ESP) and nitrile-spec...

journal_title：Phytochemistry

authors： Kong XY,Kissen R,Bones AM

更新日期：2012-12-01 00:00:00

abstract：:Benzoxazinoids are secondary metabolites of grasses that function as natural pesticides. While many steps of DIMBOA biosynthesis have been elucidated, the mechanism of the introduction of OCH(3)-group at the C-7 position was unknown. Inhibitor experiments in Triticum aestivum and Zea mays suggest that a 2-oxoglutarate...

journal_title：Phytochemistry

authors： Frey M,Huber K,Park WJ,Sicker D,Lindberg P,Meeley RB,Simmons CR,Yalpani N,Gierl A

更新日期：2003-02-01 00:00:00

abstract：:The tetrahydroanthraquinones (1S,3S)-austrocortilutein (4) and (1S,3S)-austrocortirubin (7) are octaketides formed in the fruit bodies of the fungus Dermocybe splendida via the gentiobioside 2 of the dihydroanthracenone (S)-torosachrysone (1). ...

journal_title：Phytochemistry

authors： Elsworth C,Gill M,Saubern S

更新日期：2000-09-01 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

authors： Ganapaty S,Srilakshmi GV,Pannakal ST,Rahman H,Laatsch H,Brun R

更新日期：2009-01-01 00:00:00

abstract：:In continuation of our phytochemical studies on Caryopteris x clandonensis (Lamiaceae), three further iridoids were isolated from the methanolic extract of the stems. Their structures were established by 1D and 2D NMR and MS analysis as a C-6 epimer of 8-O-acetylharpagide (6-epi-8-O-acetylharpagide), a derivative of h...

journal_title：Phytochemistry

authors： Hannedouche S,Stanislas E,Moulis C,Fourasté I

更新日期：2000-08-01 00:00:00

abstract：:An in vitro aggregation of washed lutoid membrane and rubber particles, respectively, prepared from the bottom (lutoid) fraction and rubber layer of centrifuged fresh latex, leading to the formation of rubber coagulum necessary for a latex coagulation was demonstrated. A Triton X-100 extract of washed lutoid membrane ...

journal_title：Phytochemistry

authors： Wititsuwannakul R,Pasitkul P,Kanokwiroon K,Wititsuwannakul D

更新日期：2008-01-01 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：:Three mature Eucalyptus globulus trees with 40 years of age were studied at three height levels (0%, 35%, and 60% of total tree height) and at three radial regions (sapwood, inner and outer heartwood). The composition of lipophilic extracts was evaluated and an extensive list of 202 compounds was reported for the firs...

journal_title：Phytochemistry

authors： Gominho J,Lourenço A,Marques AV,Pereira H

更新日期：2020-12-01 00:00:00