Secondary mould metabolites of Cladosporium tenuissimum, a hyperparasite of rust fungi.


:Investigation of the extracts of a culture of Cladosporium tenuissimum, a known hyperparasite of several rust fungi, gave rise to the isolation of cladosporols B-E (2-5). Their structure and stereochemistry were elucidated on the basis of 1H and 13C NMR evidence and CD measures. Cladosporols 1-5 were active in inhibiting the urediniospore germination of the bean rust agent Uromyces appendiculatus.






Nasini G,Arnone A,Assante G,Bava A,Moricca S,Ragazzi A




Has Abstract


2004-07-01 00:00:00














  • Diterpenes from the berries of Juniperus excelsa.

    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...


    pub_type: 杂志文章


    authors: Topçu G,Erenler R,Cakmak O,Johansson CB,Celik C,Chai HB,Pezzuto JM

    更新日期:1999-04-01 00:00:00

  • Dissection of the network of indolic defence compounds in Arabidopsis thaliana by multiple mutant analysis.

    abstract::Characteristic for cruciferous plants is the synthesis of a complex array of defence-related indolic compounds. In Arabidopsis, these include indol-3-ylmethyl glucosinolates (IMGs), as well as stress-inducible indole-3-carbaldehyde (ICHO)/indole-3-carboxylic acid (ICOOH) derivatives and camalexin. Key enzymes in the b...


    pub_type: 杂志文章


    authors: Müller TM,Böttcher C,Glawischnig E

    更新日期:2019-05-01 00:00:00

  • Probing the transcriptome of Aconitum carmichaelii reveals the candidate genes associated with the biosynthesis of the toxic aconitine-type C19-diterpenoid alkaloids.

    abstract::Aconitum carmichaelii has long been used as a traditional Chinese medicine, and its processed lateral roots are known commonly as fuzi. Aconitine-type C19-diterpenoid alkaloids accumulating in the lateral roots are some of the main toxicants of this species, yet their biosynthesis remains largely unresolved. As a firs...


    pub_type: 杂志文章


    authors: Zhao D,Shen Y,Shi Y,Shi X,Qiao Q,Zi S,Zhao E,Yu D,Kennelly EJ

    更新日期:2018-08-01 00:00:00

  • Metabolomic analysis applied to chemosystematics and evolution of megadiverse Brazilian Vernonieae (Asteraceae).

    abstract::Vernonia sensu lato is the largest and most complex genus of the tribe Vernonieae (Asteraceae). The tribe is chemically characterized by the presence of sesquiterpene lactones and flavonoids. Over the years, several taxonomic classifications have been proposed for Vernonia s.l. and for the tribe; however, there has be...


    pub_type: 杂志文章


    authors: Gallon ME,Monge M,Casoti R,Da Costa FB,Semir J,Gobbo-Neto L

    更新日期:2018-06-01 00:00:00

  • Furostanol glycosides from bulbs of Allium chinense.

    abstract::Two new furostanol saponins, named chinenosides II and III, were isolated along with seven known compounds, from the bulbs of Allium chinese G. Don by a combination of silica gel, Diaion HP-20, and octadecylsilanized (ODS) silica gel column chromatographies and preparative HPLC. On the basis of chemical and spectrosco...


    pub_type: 杂志文章


    authors: Peng JP,Yao XS,Tezuka Y,Kikuchi T

    更新日期:1996-01-01 00:00:00

  • Steroidal glycosides from Tribulus terrestris.

    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...


    pub_type: 杂志文章


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

    更新日期:1996-08-01 00:00:00

  • Triterpenoid saponins from Triplostegia grandiflora.

    abstract::Four new oleanane triterpenoid saponins named triplosides D-G were isolated from the roots of Triplostegia grandiflora. Their structures were elucidated on the basis of chemical degradation and spectral evidence. The saponins investigated were: oleanolic acid 3-O-beta-D-xylopyranosyl(1----4)-beta-D-xylopyranosyl(1----...


    pub_type: 杂志文章


    authors: Ma WG,Wang DZ,Zeng YL,Yang CR

    更新日期:1992-04-01 00:00:00

  • Study of sesquiterpene lactones from Milleria quinqueflora on their anti-inflammatory activity using the transcription factor NF-kappa B as molecular target.

    abstract::In Central America aerial parts of the Asteraceae Milleria quinqueflora are used in traditional medicine as a remedy for skin infections. Reinvestigation of this plant afforded thirteen sesquiterpene lactones (Sls), three of them are new. All isolated Sls were studied for their anti-inflammatory activity using the tra...


    pub_type: 杂志文章


    authors: Castro V,Rüngeler P,Murillo R,Hernandez E,Mora G,Pahl HL,Merfort I

    更新日期:2000-01-01 00:00:00

  • A pyradine-derivative from the mushroom Albatrellus confluens.

    abstract::A novel pyradine-derivative was isolated from the mushroom Albatrellus confluens. This compound promoted melanin synthesis by B16 melanoma cells. ...


    pub_type: 杂志文章


    authors: Kawagishi H,Tanaka A,Sugiyama K,Mori H,Sakamoto H,Ishiguro Y,Kobayashi K,Uramato M

    更新日期:1996-05-01 00:00:00

  • Dimeric bisindole alkaloids from the stem bark of Strychnos nux-vomica L.

    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...


    pub_type: 杂志文章


    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

  • Guaiane sesquiterpenes and isopimarane diterpenes from an endophytic fungus Xylaria sp.

    abstract::Nine oxygenated guaiane-type sesquiterpenes and three isopimarane diterpenes were isolated from the culture broth of an endophytic fungus, Xylaria sp. YM 311647, obtained from Azadirachta indica. The structures of these compounds were elucidated by interpretation of spectroscopic data. The absolute configurations of t...


    pub_type: 杂志文章


    authors: Wu SH,He J,Li XN,Huang R,Song F,Chen YW,Miao CP

    更新日期:2014-09-01 00:00:00

  • A "flavone-polysaccharide" redefined as a mixture of 6-methoxyluteolin penta- and hexa-O-glycosides.

    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...


    pub_type: 杂志文章


    authors: Markham KR

    更新日期:2003-07-01 00:00:00

  • Flavonoids, including an unusual flavonoid-Mg2+ salt, from roots of Cudrania cochinchinensis.

    abstract::Four flavonoids with 2',4'-di-oxygenated B-rings, cochinchinol A (1), cochinchinol B (2), (2R,3R)-4',7-dihydroxy-2',5-dimethoxydihydroflavonol (3), 4',7-dihydroxy-2',5-dimethoxyflavonol (4), along with 11 known compounds, were isolated from an ethanolic extract of the roots of Cudrania cochinchinensis. Their structure...


    pub_type: 杂志文章


    authors: Zhang P,Feng Z,Wang Y

    更新日期:2005-12-01 00:00:00

  • Uptake of radiolabelled ochratoxin A from soil by coffee plants.

    abstract::[3H, 14C] Ochratoxin A, prepared biosynthetically, was applied in dilute NaHCO3 solution to the soil in which coffee plants had grown to four pairs of leaves. Three weeks later the compound, isolated from dilute NaHCO3 extract of leaves by immunoaffinity chromatography, was detected by scintillation counting as a 1-2 ...


    pub_type: 杂志文章


    authors: Mantle PG

    更新日期:2000-02-01 00:00:00

  • Characterization of bispecific caffeic acid/5-hydroxyferulic acid O-methyltransferase from aspen.

    abstract::Bispecific O-methyltransferase (OMT, EC which catalyses the meta-specific methylation of caffeic acid and 5-hydroxyferulic acid was purified to homogeneity from the developing secondary xylem of aspen (Populus tremuloides). The enzyme was purified by conventional techniques and affinity chromatography on S-a...


    pub_type: 杂志文章


    authors: Bugos RC,Chiang VL,Campbell WH

    更新日期:1992-05-01 00:00:00

  • C(25) highly branched isoprenoid alkenes from the marine benthic diatom Pleurosigma strigosum.

    abstract::The hydrocarbon composition of the marine diatom Pleurosigma strigosum isolated from coastal Mediterranean sediments is described. A suite of five C(25) highly branched isoprenoid (HBI) alkenes with 2-5 double bonds were detected together with n-C(21:4) and n-C(21:5) alkenes and squalene. The analysis by (1)H and (13)...


    pub_type: 杂志文章


    authors: Grossi V,Beker B,Geenevasen JA,Schouten S,Raphel D,Fontaine MF,Sinninghe Damsté JS

    更新日期:2004-11-01 00:00:00

  • Glycolipid composition of Hevea brasiliensis latex.

    abstract::Glycolipids of fresh latex from three clones of Hevea brasiliensis were characterized and quantified by HPLC/ESI-MS. Their fatty acyl and sterol components were further confirmed by GC/MS after saponification. The four detected glycolipid classes were steryl glucosides (SG), esterified steryl glucosides (ESG), monogal...


    pub_type: 杂志文章


    authors: Liengprayoon S,Sriroth K,Dubreucq E,Vaysse L

    更新日期:2011-10-01 00:00:00

  • Prieurianoside, a protolimonoid glucoside from the leaves of Trichilia prieuriana.

    abstract::The ubiquitous glycolipid 1,2-dilinolenoyl-3-galactopyranosylglycerol and a new protolimonoid glucoside, named prieurianoside, were isolated from the leaves of Trichilia prieuriana. The structure of the latter was established, by spectroscopic techniques, as 12beta,21-diacetoxy-29-beta-D-glucopyranosyloxy-23zeta -hydr...


    pub_type: 杂志文章


    authors: Olugbade TA,Adesanya SA

    更新日期:2000-08-01 00:00:00

  • Comparative analysis of CYP93E proteins for improved microbial synthesis of plant triterpenoids.

    abstract::Cytochrome P450-dependent monooxygenases (P450s) belonging to the CYP93E subfamily catalyze the C-24 oxidation of the triterpene backbone during the biosynthesis of triterpenoid saponins, which are bioactive plant natural products. In our attempts to produce plant triterpenoids in the yeast Saccharomyces cerevisiae, w...


    pub_type: 杂志文章


    authors: Moses T,Thevelein JM,Goossens A,Pollier J

    更新日期:2014-12-01 00:00:00

  • Aristololactams and aporphines from the stems of Fissistigma oldhamii (Annonaceae).

    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...


    pub_type: 杂志文章


    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

  • Malate. Jack of all trades or master of a few?

    abstract::The dicarboxylic acid malate has long been thought to play important roles in plant physiology. In addition to being a major photosynthate in C4 and CAM plants and an intermediate of the tricarboxylic acid cycle it has been proposed to play essential roles in pH regulation and important roles in pathogen response, as ...


    pub_type: 杂志文章


    authors: Fernie AR,Martinoia E

    更新日期:2009-05-01 00:00:00

  • A arylnaphthalene lignan from Haplophyllum buxbaumii.

    abstract::Haplophyllum buxbaumii has yielded a new diphyllin glycoside, which was characterized as 4-O-{bis-alpha-L-xylopyranosyl (1-->2, 1-->5) beta-D-apiofuranosyloxy}-6,7-dimethoxy-1-(3,4-methylenedioxyphenyl)-3-hydroxymethyl naphthalene-2-carboxylic acid lactone. Taiwanin-H is also reported for the first time from a member ...


    pub_type: 杂志文章


    authors: Al-Abed Y,Abu-Zarga M,Sabri S,Atta-Ur-Rahman,Voelter W

    更新日期:1998-11-20 00:00:00

  • Isolation and identification of lateral bud growth inhibitor, indole-3-aldehyde, involved in apical dominance of pea seedlings.

    abstract::A lateral bud growth inhibitor was isolated from etiolated pea seedlings and identified as indole-3-aldehyde. The indole-3-aldehyde content was significantly higher in the diffusates from explants with apical bud and indole-3-acetic acid treated decapitated explants, in which apical dominance is maintained, than in th...


    pub_type: 杂志文章


    authors: Nakajima E,Nakano H,Yamada K,Shigemori H,Hasegawa K

    更新日期:2002-12-01 00:00:00

  • Partial purification and characterisation of sugarcane neutral invertase.

    abstract::Sugarcane neutral invertase (SNI) has been partially purified from mature sugarcane stem tissue to remove any potential competing activity. The enzyme is non-glycosylated and exhibits catalytic activity as a monomer, dimer and tetramer, most of the activity elutes as a monomer of native M(r) ca 60 k. The enzyme displa...


    pub_type: 杂志文章


    authors: Vorster DJ,Botha FC

    更新日期:1998-10-01 00:00:00

  • Iridoid glycosides from Gmelina philippensis.

    abstract::Six new iridoids, 6-O-alpha-L-(2"-O-, 3"-O-, 4"-O-tribenzoyl)rhamnopyranosylcatalpol, 6-O-alpha-L-(2"-O-, 3"-O-dibenzoyl, 4"-O-cis-p-coumaroyl)rhamnopyranosylcatalpol, 6-O-alpha-L-(2"-O-, 3"-O-dibenzoyl, 4"-O-trans-p-coumaroyl)rhamnopyranosylcatalpol, 6-O-alpha-L-(2"-O-benzoyl, 3"-O-trans-p-coumaroyl)rhamnopyranosylca...


    pub_type: 杂志文章


    authors: Helfrich E,Rimpler H

    更新日期:2000-05-01 00:00:00

  • Characterisation of the willow phenylalanine ammonia-lyase (PAL) gene family reveals expression differences compared with poplar.

    abstract::Willow is an important biomass crop for the bioenergy industry, and therefore optimal growth with minimal effects of biotic and abiotic stress is essential. The phenylpropanoid pathway is responsible for the biosynthesis of not only lignin but also of flavonoids, condensed tannins, benzenoids and phenolic glycosides w...


    pub_type: 杂志文章


    authors: de Jong F,Hanley SJ,Beale MH,Karp A

    更新日期:2015-09-01 00:00:00

  • Cyclic fatty acyl glycosides in the glandular trichome exudate of Silene gallica.

    abstract::Chemical investigation of the glandular trichome exudate from Silene gallica L. (Caryophyllaceae) resulted in isolation of 10 cyclic fatty acyl glycosides (gallicasides A-J). The cyclic structures were characterized by a glycosidic linkage of the glucose moiety to either the C-12 or the C-13 position of the octadecano...


    pub_type: 杂志文章


    authors: Asai T,Fujimoto Y

    更新日期:2010-08-01 00:00:00

  • Distribution of flavonoids in the Myristicaceae.

    abstract::During the past two decades the study of the Myristicaceae species has increased, and many flavonoids of different types have been isolated. This review discusses the flavonoids presently known in the Myristicaceae. ...


    pub_type: 杂志文章,评审


    authors: Valderrama JC

    更新日期:2000-11-01 00:00:00

  • Isoflavanones and their O-glycosides from Desmodium styracifolium.

    abstract::Two isoflavanones (5,7-dihydroxy-2',3',4'-trimethoxy-isoflavanone and 5,7-dihydroxy-2'-methoxy-3',4'-methylenedioxy-isoflavanone), four isoflavanone O-glycosides (5,7-dihydroxy-2',3',4'-trimethoxy-isoflavanone 7-O-beta-glucopyranoside, 5,7-dihydroxy-2'-methoxy-3',4'-methylenedioxy-isoflavanone 7-O-beta-glucopyranoside...


    pub_type: 杂志文章


    authors: Zhao M,Duan JA,Che CT

    更新日期:2007-05-01 00:00:00

  • Steroidal saponins from the leaves of Beaucarnea recurvata.

    abstract::Thirteen steroidal saponins were isolated from the leaves of Beaucarnea recurvata Lem. Their structures were established using one- and two-dimensional NMR spectroscopy and mass spectrometry. Six of them were identified as: 26-O-β-D-glucopyranosyl (25S)-furosta-5,20(22)-diene 1β,3β,26-triol 1-O-α-L-rhamnopyranosyl-(1→...


    pub_type: 杂志文章


    authors: Eskander J,Lavaud C,Harakat D

    更新日期:2011-06-01 00:00:00