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Oxidation products of acylated anthocyanins under acidic and neutral conditions

Hrazdina, G. ; Franzese, A.J.

Amsterdam : Elsevier

Phytochemistry 13 (1974), S. 231-234

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ISSN: 0031-9422

Keywords: 3-(6-O-p-coumarylglucosyl-5-glucosyl-7 hydroxy coumarin. ; Acylated anthocyanins: H"2"2-oxidation: p-coumarylmalvone

Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002

Topics: Biology , Chemistry and Pharmacology

Type of Medium: Electronic Resource

URL: http://linkinghub.elsevier.com/retrieve/pii/S0031-9422(00)91300-1

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Induction of anthocyanin formation and of enzymes related to its biosynthesis by UV light in cell cultures of Haplopappus gracilis

Wellmann, E. ; Hrazdina, G. ; Grisebach, H.

Amsterdam : Elsevier

Phytochemistry 15 (1976), S. 913-915

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ISSN: 0031-9422

Keywords: Compositae ; Haplopappus gracilis ; anthocyanin. ; biosynthesis ; flavonoids ; tissue culture

Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002

Topics: Biology , Chemistry and Pharmacology

Type of Medium: Electronic Resource

URL: http://linkinghub.elsevier.com/retrieve/pii/S0031-9422(00)84369-1

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Purification and properties of a UDPglucose:flavonoid 3-O-glucosyltransferase from Hippeastrum petals

Hrazdina, G.

Amsterdam : Elsevier

Biochimica et Biophysica Acta (BBA)/Protein Structure and Molecular 955 (1988), S. 301-309

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ISSN: 0167-4838

Keywords: (Hippeastrum) ; Flavonol O^3-glucosyltransferase ; Glucosyltransferase ; Purification ; UDPglucose:flavonoid 3-O-glucosyltransferase

Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002

Topics: Biology , Chemistry and Pharmacology , Medicine

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1016/0167-4838(88)90208-7

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Phenotypic differences in anthocyanin accumulation among clonally related cultured cells of carrot (1990)

Vogelien, D. L. ; Hrazdina, G. ; Reeves, S. ; [et al.]

Springer

Plant cell, tissue and organ culture 22 (1990), S. 213-222

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ISSN: 1573-5044

Keywords: anthocyanin accumulation ; cell clones ; chalcone synthase ; Daucus carota ; intermediates in biosynthesis ; phenotypes

Source: Springer Online Journal Archives 1860-2000

Topics: Biology

Notes: Abstract Subclones from a wild carrot cell culture have been examined for their anthocyanin accumulation in the absence and presence of DMSO and 4-coumaric acid, naringenin, dihydroquercetin or leucocyanidin. Subclones that accumulate no or extremely low levels of anthocyanin do not increase their anthocyanin accumulation when treated with DMSO or intermediates. These compounds increased the anthocyanin accumulation in subclones which produce detectable anthocyanin in their absence. Chalcone synthase was shown to be present in clones and the activity showed no correlation with the amount of anthocyanin accumulated. This suggests that the enzymes of anthocyanin biosynthesis are not coordinately repressed in the subclones which accumulate little or no anthocyanin. Dihydroquercetin and catechin were present in subclones with little or no anthocyanin but no procyanidin was detected which suggests that these subclones biosynthesize leucocyanidin but do not convert it into colorless procyanidins as a major alternative metabolic pathway to anthocyanin biosynthesis. The possibility that some clones are not anthocyanin accumulating because they have impaired transport of the sinapoylated anthocyanin into the vacuole is discussed.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00033639

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