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Flavonoid, biosynthesis

See D. M. Smith, 1980, for a study of flavonoid profiles of the varieties.) The overall flavonoid profile of P. triangularis is fully in accord with the uifique status of the species. A detailed discussion of the chemistry of this system, which is beyond the scope of the present treatment, can be found in a paper by Wollenweber and Dietz (1980). An example of the complexity of flavonoid biosynthesis in this species can be found in a description of biflavonoids present in the farinose exudate (linuma et al., 1994). [Pg.109]

Winkel, B.S.J., Flavonoid biosynthesis a colorful model for genetics, biochemistry, cell biology, and biotechnology. Plant Physiol. 126, 485, 2001. [Pg.386]

J. E. Cooper and J. R. Rao, Localized changes in flavonoid biosynthesis in roots of Lotus pedunculatus after infection by Rhizohium loti. Plant Physiol. 100 444 (1992). [Pg.219]

Dewar, D. Sutherland, R. G. The photolysis of 2-hydroxychalcone and its possible implication in flavonoid biosynthesis. J. Chem. Soc., Chem. Commun. 1970, 272-273. [Pg.31]

Poly(3HB) synthesis in various subcellular compartments could be used to study how plants adjust their metabolism and gene expression to accommodate the production of a new sink, and how carbon flux through one pathway can affect carbon flux through another. For example, one could study how modifying the flux of carbon to starch or lipid biosynthesis in the plastid affects the flux of carbon to acetyl-CoA and poly(3HB). Alternatively, one could study how plants adjust the activity of genes and proteins involved in isoprenoid and flavonoid biosynthesis to the creation of the poly(3HB) biosynthetic pathway in the cytoplasm, since these three pathways compete for the same building block, i. e., acetyl-CoA. [Pg.222]

Strissel, T., Halbwirth, H., Hoyer, U., Zistler, C., Stich, K., and Treutter, D. (2005). Growth-promoting nitrogen nutrition affects flavonoid biosynthesis in young apple (Malus domestica Borkh.) leaves , Plant Biology, 1, 677-685. [Pg.350]

Flavonoid biosynthesis is linked to primary metabolism through both plastid- and mitochondria-derived intermediates, each requiring export to the cytoplasm where they are incorporated into separate halves of the molecule. [Pg.143]

Ring B and the central three-carbon bridge forming the C ring (see Fig. 5.1) originate from the amino acid phenylalanine, itself a product of the shikimate pathway, a plastid-based process which generates aromatic amino acids from simple carbohydrate building blocks. Phenylalanine, and to a lesser extent tyrosine, are then fed into flavonoid biosynthesis via phenylpropanoid (C6-C3) metabolism (see Fig. 5.1). [Pg.143]

The six-membered aromatic A ring originates from three units of malonyl-CoA, produced from citrate precursors through the activity of a cytosolic acetyl-CoA carboxylase (ACC) (Fatland and others 2004) (see Fig. 5.1). These three malonyl-CoA units are added through sequential decarboxylation condensation reactions and actually represent the first committed step toward flavonoid biosynthesis. [Pg.143]

Both (2.S>naringenin and its dihydroflavonol derivative are central intermediates in flavonoid biosynthesis (see Fig. 5.4), acting as branch-point metabolites,... [Pg.145]

Turnbull JJ, Nakajima J, Welford RW, Yamazaki M, Saito K and Schofield CJ. 2004. Mechanistic studies on three 2-oxoglutarate-dependent oxygenases of flavonoid biosynthesis anthocyanidin synthase, flavonol synthase, and flavanone 33-hydroxylase. J Biol Chem 279 1206-1216. [Pg.153]

A MUTATIONAL APPROACH TO DISSECTION OF FLAVONOID BIOSYNTHESIS IN ARABIDOPSIS... [Pg.95]

Figure 6.1 Major branch pathways of flavonoid biosynthesis in Arabidopsis. Branch pathways, enzymes, and end products present in other plants but not Arabidopsis are shown in light gray. Abbreviations cinnamate-4-hydroxylase (C4H), chalcone isomerase (CHI), chalcone synthase (CHS), 4-coumarate CoA-ligase (4CL), dihydroflavonol 4-reductase (DFR), flavanone 3-hydroxylase (F3H), flavonoid 3 or 3 5 hydroxylase (F3 H, F3 5 H), leucoanthocyanidin dioxygenase (LDOX), leucoanthocyanidin reductase (LCR), O-methyltransferase (OMT), phenylalanine ammonia-lyase (PAL), rhamnosyl transferase (RT), and UDP flavonoid glucosyl transferase (UFGT). Figure 6.1 Major branch pathways of flavonoid biosynthesis in Arabidopsis. Branch pathways, enzymes, and end products present in other plants but not Arabidopsis are shown in light gray. Abbreviations cinnamate-4-hydroxylase (C4H), chalcone isomerase (CHI), chalcone synthase (CHS), 4-coumarate CoA-ligase (4CL), dihydroflavonol 4-reductase (DFR), flavanone 3-hydroxylase (F3H), flavonoid 3 or 3 5 hydroxylase (F3 H, F3 5 H), leucoanthocyanidin dioxygenase (LDOX), leucoanthocyanidin reductase (LCR), O-methyltransferase (OMT), phenylalanine ammonia-lyase (PAL), rhamnosyl transferase (RT), and UDP flavonoid glucosyl transferase (UFGT).
BURBULIS, I.E., IACOBUCCI, M., SHIRLEY, B.W., A null mutation in the first enzyme of flavonoid biosynthesis does not affect male fertility in Arabidopsis, Plant Cell, 1996, 8,1013-1025. [Pg.109]

MOYANO, E., MART NEZ-GARCIA, J.F., MARTIN, C., Apparent redundancy in myb gene function provides gearing for the control of flavonoid biosynthesis in Antirrhium flowers, Plant Cell, 1996,8, 1519-1532. [Pg.123]

M., AUSUBEL, F.M., GOODMAN, H., Analysis of Arabidopsis mutants deficient in flavonoid biosynthesis, Plant J., 1995, 8, 659-671. [Pg.123]

The first nucleotide sequence for CHS was determined from cultured parsley cells [53]. Since then, its expression and regulation have been extensively studied in numerous plant systems in relation to a myriad of different conditions and stimuli [e.g., 21 and ref therein]. Due to its key role in flavonoid biosynthesis, CHS has been a popular target for various gene-silencing techniques in attempts to generate flavonoid-deficient plants [16, 54 and ref therein]. [Pg.73]

Moriguchi T, Kita M, Tomono Y, Endo-Inagaki T, Omura M (2008) Gene expression in flavonoid biosynthesis correlation with flavonoid accumulation in developing citrus fruit. Physiol Plant 111 66-74... [Pg.88]

Schijlen EWGM, de Vos CHR, Martens S, Jonker HH, Rosin FM, Molthoff JW, Tikunov YM, Angenent GC, van Tunen AJ, Bovy AG (2007) RNA interference silencing of chalcone synthase, the first step in the flavonoid biosynthesis pathway, leads to parthenocarpic tomato fruits. Plant Physiol 144 1520-1530... [Pg.90]

Raymond WR, Maier VP (1977) Chalcone cyclase and flavonoid biosynthesis in grapefruit. Phytochemistry 16 1535-1539... [Pg.90]

Punyasiri PA, Abeysinghe IS, Kumar V, Treutter D, Duy D, Gosch C, Martens S, Eorkmann G, Fischer TC (2004) Flavonoid biosynthesis in the tea plant Camellia sinensis properties of enzymes of the prominent epicatechin and catechin pathways. Arch Biochem Biophys 431(l) 22-30... [Pg.91]


See other pages where Flavonoid, biosynthesis is mentioned: [Pg.369]    [Pg.627]    [Pg.170]    [Pg.268]    [Pg.203]    [Pg.143]    [Pg.145]    [Pg.145]    [Pg.98]    [Pg.99]    [Pg.99]    [Pg.103]    [Pg.103]    [Pg.106]    [Pg.107]    [Pg.110]    [Pg.118]    [Pg.171]    [Pg.268]    [Pg.69]    [Pg.73]    [Pg.88]   
See also in sourсe #XX -- [ Pg.186 ]




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