Taxonomic group: plant / Streptophyta
(Phylum: Streptophyta)
Organ / tissue: flower
Publication DOI: 10.1016/S0304-4238(99)00140-5Journal NLM ID: 9882883Publisher: Amsterdam, International Society for Horticultural Science
Correspondence: Mato M <matou
mtj.biglobe.ne.jp>
Institutions: Department of Floriculture, National Research Institute of Vegetables, Ornamental Plants and Tea, Ano, Japan, Department of Biotechnology, Tokyo University of Agriculture and Technology, Koganei, Japan, Japan Tobacco Inc., Applied Plant Research Laboratory, Oyama, Japan
Analysis of flavonoid composition and gene expression of enzymes involved in anthocyanin synthesis in flowers of four acyanic and one cyanic cultivar of Sim carnation showed that the acyanic flower cultivars are divided into three types. The first includes two normal white cultivars, ‘U Conn Sim’ and ‘White Sim’; the second includes a nearly pure white cultivar, ‘Kaly’; and the third includes a nearly pure white cultivar, ‘White Mind’. ‘U Conn Sim’ and ‘White Sim’ accumulated flavonol glycosides and lacked anthocyanins. The transcription of the several genes of enzymes involved in flavonoid biosynthesis were reduced at a later flowering stage than the cyanic cultivar, especially the genes encoding dihydroflavonol 4-reductase and anthocyanidin synthase. ‘Kaly’ accumulated flavanone glycosides and a small amount of flavonol and flavone glycosides by blocking the transcription of the gene encoding flavanone 3-hydroxylase, in addition to the transcriptional reduction of the genes for flavonoid biosynthesis at a later flowering stage. Although ‘White Mind’ contains little flavonoid, the position of the block on flavonoid biosynthesis in ‘White Mind’ is not known.
flavonoid, Dianthus caryophyllus, white flower, flavanone 3-hydroxylase, dihydroflavonol 4-reductase, anthocyanidin synthase
Structure type: monomer
Location inside paper: p. 339, Fig. 4, 14
Compound class: glycoside, flavonoid glycoside
Contained glycoepitopes: IEDB_142488,IEDB_146664,IEDB_983931,SB_192
Related record ID(s): 66755, 66756, 66757
NCBI Taxonomy refs (TaxIDs): 3570
Show glycosyltransferases
There is only one chemically distinct structure:
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