نتایج جستجو برای: isoflavonoid

تعداد نتایج: 357  

Journal: :Journal of bacteriology 1998
J D Palumbo C I Kado D A Phillips

Agrobacterium tumefaciens 1D1609, which was originally isolated from alfalfa (Medicago sativa L.), contains genes that increase competitive root colonization on that plant by reducing the accumulation of alfalfa isoflavonoids in the bacterial cells. Mutant strain I-1 was isolated by its isoflavonoid-inducible neomycin resistance following mutagenesis with the transposable promoter probe Tn5-B30...

Journal: :Plant physiology 1994
A. D. Parry S. A. Tiller R. Edwards

Modest increases in the concentration of medicarpin, 6-fold in leaves and 4-fold in roots, were observed in alfalfa (Medicago sativa L.) seedlings treated with 1 mM metal salts for 72 h. However, medicarpin-3-O-glucoside-6"-O-malonate (MGM) and formononetin-7-O-glucoside-6"-O-malonate (FGM) levels were up to 50-fold lower in metal-treated compared to control roots. Approximately 10% of the "mis...

1999
Renee C Lin Ting - Kai Li

Puerarin, daidzin, and daidzein are 3 major isoflavonoid compounds isolated from Pueraria lobata, an edible vine used widely in China for various medicinal purposes. We studied the antiinebriation and the antidipsotropic effects of these antioxidants in rats. Daidzin and daidzein shortened alcohol-induced sleep time (loss of righting reflex) in rats that were given ethanol intragastrically but ...

Journal: :The Journal of biological chemistry 2001
A O Latunde-Dada F Cabello-Hurtado N Czittrich L Didierjean C Schopfer N Hertkorn D Werck-Reichhart J Ebel

Cytochrome P-450-dependent hydroxylases are typical enzymes for the modification of basic flavonoid skeletons. We show in this study that CYP71D9 cDNA, previously isolated from elicitor-induced soybean (Glycine max L.) cells, codes for a protein with a novel hydroxylase activity. When heterologously expressed in yeast, this protein bound various flavonoids with high affinity (1.6 to 52 microm) ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2006
Sitarina Widyarini Diane Domanski Nicole Painter Vivienne E Reeve

The phytoestrogenic isoflavonoid equol is known to protect against solar-simulated UV radiation-induced inflammation, immunosuppression, and skin carcinogenesis. The mechanism may involve antioxidant actions, because equol not only is a radical scavenger but also enhances the induction of a relevant cutaneous antioxidant, metallothionein. However, this study in female hairless mice examined whe...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2008
Mohamed S A Marzouk Magda T Ibrahim Omima R El-Gindi Marwa S Abou Bakr

Chromatographic separation of a 70% aqueous methanol extract (AME) of Pongamia pinnata (Linn.) Pierre (Leguminosae) leaves has led to the isolation of two new isoflavonoid diglycosides, 4'-O-methyl-genistein 7-O-beta-D-rutinoside (2) and 2',5'-dimethoxy-genistein 7-O-beta-D-apiofuranosyl-(1"'-->6")-O-beta-D-glucopyranoside (6), and a new rotenoid, 12a-hydroxy-alpha-toxicarol (5), together with ...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2000
M Sakasai H Fukui H Yamane A N Kyaw S Tahara

Two novel isoflavonoid dimers presumably originating from 2'-hydroxygenistein, 5,7,4'-trihydroxycoumaranochroman-4-one-(3-->5"')-5",7",2"'4"'- tetrahydroxyisoflavone (1, lupinalbisone A) and 5,7,4'-trihydroxycoumaranochroman-4-one-(3-6")-5",7",2"',4"'-te trahydroxyisoflavone (2, lupinalbisone B) were isolated from the roots of Lupinus albus L., and their structures involving relative stereochem...

2013
Didier Hallard Ernst Bleichert Hubert Gagnon Satoshi Tahara Ragai Ibrahim

Cell cultures derived from white lupin (Lupinus albus) radicles consist o f a mixture o f friable cell aggregates and finely divided cells. Both types o f tissue accumulate two isoflavonoid aglucones, genistein and 2'-hydroxygenistein, their 7-O-glucosides, and their respective 6-, 8-, and 3'-monoprenyl-, as well as the 6,3'-diprenyl derivatives. M ost o f these metabolites are differen­ tially...

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