ChemInform Abstract: A Flavone Glycoside from Glycosmis mauritiana.

ChemInform ◽  
2011 ◽  
Vol 42 (5) ◽  
pp. no-no
Author(s):  
Javed Intekhab ◽  
Mohammad Aslam
Keyword(s):  
Flavone Glycoside ◽  
Glycosmis Mauritiana

A flavone glycoside from Glycosmis mauritiana

2010 ◽  
Vol 141 (11) ◽  
pp. 1263-1265 ◽  
Author(s):  
Javed Intekhab ◽  
Mohammad Aslam
Keyword(s):  
Flavone Glycoside ◽  
Glycosmis Mauritiana

scholarly journals Phenolic Constituents of Knautia arvensis Aerial Parts

2011 ◽  
Vol 6 (11) ◽  
pp. 1934578X1100601 ◽  
Author(s):  
Jaroslaw Moldoch ◽  
Barbara Szajwaj ◽  
Milena Masullo ◽  
Lukasz Pecio ◽  
Wieslaw Oleszek ◽  
...  
Keyword(s):  
Chlorogenic Acid ◽  
2D Nmr ◽  
Spectroscopic Methods ◽  
Flavone Glycoside ◽  
Aerial Parts ◽  
Dicaffeoylquinic Acid ◽  
Phenolic Constituents ◽  
First Time

A new C-6 flavone glycoside (6), together with seven known compounds, cryptochlorogenic acid (1), chlorogenic acid (2), 2- O- trans-caffeoylhydrocitric acid (3), isovitexin 7-β-D-glucopyranoside (4), 7,4′-dihydroxy-5-methoxyflavone-6- C-β-D-glucopyranoside (5), 3,5- O-dicaffeoylquinic acid (7) and 4,5- O-dicaffeoylquinic acid (8), were isolated from the aerial parts of Knautia arvensis. Their structures were elucidated by extensive spectroscopic methods including 1D- (1H, 13C and TOCSY) and 2D-NMR (DQF-COSY, HSQC, HMBC) experiments, as well as ESIMS analysis. Compounds 1, 3-5 and 8 are reported for the first time in Knautia arvensis.

scholarly journals Evidence that a New Antibiotic Flavone Glycoside Chemically Defends the Sea Grass Thalassia testudinumagainst Zoosporic Fungi

1998 ◽  
Vol 64 (4) ◽  
pp. 1490-1496 ◽  
Author(s):  
P. R. Jensen ◽  
K. M. Jenkins ◽  
D. Porter ◽  
W. Fenical
Keyword(s):  
Chemical Characterization ◽  
Leaf Tissue ◽  
Chemical Fractionation ◽  
Tissue Concentrations ◽  
Flavone Glycoside ◽  
Sea Grass ◽  
Zoosporic Fungi ◽  
Leaf Tissues ◽  
Marine Angiosperm

ABSTRACT Significantly fewer thraustochytrid protists (zoosporic fungi) were observed in association with healthy leaf tissue of the marine angiosperm Thalassia testudinum than in association with sterilized samples that were returned to the collection site for 48 h. In support of the hypothesis that sea grass secondary metabolites were responsible for these differences, extracts of healthyT. testudinum leaf tissues inhibited the growth of the co-occurring thraustochytrid Schizochytrium aggregatum and deterred the attachment of S. aggregatum motile zoospores to an extract-impregnated substrate. By using S. aggregatumfor bioassay-guided chemical fractionation, a new flavone glycoside was isolated and structurally characterized as luteolin 7-O-β-d-glucopyranosyl-2"-sulfate. Whole-leaf tissue concentrations of this metabolite (4 mg/ml of wet leaf tissue) inhibited S. aggregatum attachment, and a significantly lower concentration (270 μg/ml) reduced thraustochytrid growth by 50%, suggesting that natural concentrations are at least 15 times greater than that needed for significant microbiological effects. These results offer the first complete chemical characterization of a sea grass sulfated flavone glycoside and provide evidence that a secondary metabolite chemically defends T. testudinum against fouling microorganisms.

New acylated flavone glycoside fromGnaphalium uliginosum

1979 ◽  
Vol 15 (3) ◽  
pp. 269-272 ◽  
Author(s):  
M. M. Konopleva ◽  
L. P. Smirnova ◽  
V. T. Glyzin ◽  
V. L. Shelyuto
Keyword(s):  
Flavone Glycoside

A new flavone glycoside from Centaurea furfuracea

Fitoterapia ◽  
1999 ◽  
Vol 70 (4) ◽  
pp. 368-370 ◽  
Author(s):  
Salah Akkal ◽  
Fadila Benayache ◽  
Samir Benayache ◽  
Kamel Medjroubi ◽  
Maurice Jay ◽  
...  
Keyword(s):  
Flavone Glycoside

Spinoside, new coumaroyl flavone glycoside fromAmaranthus spinosus

2004 ◽  
Vol 27 (12) ◽  
pp. 1216-1219 ◽  
Author(s):  
Azhar-ul-Haq ◽  
Abdul Malik ◽  
Anwar-ul-Haq Sher Bahadar Khan ◽  
Muhammad Raza Shah ◽  
Pir Muhammad
Keyword(s):  
Flavone Glycoside

Relationship between organ development and activity of enzymes involved in flavone glycoside biosynthesis in young parsley plants

1971 ◽  
Vol 10 (1) ◽  
pp. 109-116 ◽  
Author(s):  
K. Hahlbrock ◽  
A. Sutter ◽  
E. Wellmann ◽  
R. Ortmann ◽  
H. Grisebach
Keyword(s):  
Organ Development ◽  
Flavone Glycoside ◽  
Activity Of Enzymes

scholarly journals Vitexin — A new flavone glycoside of Adonis vernalis

1971 ◽  
Vol 7 (4) ◽  
pp. 506-506 ◽  
Author(s):  
G. A. Drozd ◽  
K. E. Koreshchuk ◽  
L. L. Khapugina ◽  
E. V. Miroshnikov
Keyword(s):  
Flavone Glycoside

Isocynaroside — A new flavone glycoside from Sonchus arvensis

1974 ◽  
Vol 10 (5) ◽  
pp. 680-681 ◽  
Author(s):  
V. G. Bondarenko ◽  
V. I. Glyzin ◽  
A. I. Ban'kovskii ◽  
V. L. Shelyuto
Keyword(s):  
Flavone Glycoside ◽  
Sonchus Arvensis
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