Distribution and Composition of Flavonols in the Flowers of Rhododendron oldhamii Maxim. - 九大コレクション

＜紀要論文＞
Distribution and Composition of Flavonols in the Flowers of Rhododendron oldhamii Maxim.

作成者	作成者名 Huyen, Dao Thi Thanh 所属機関所属機関名 Graduate School of Bioresource and Bioenvironmental Science, Kyushu University
	作成者名 Van, Dao Thanh 所属機関所属機関名 Thai Nguyen University of Agriculture and Forestry
	作成者名 Huang, KuangLiang 所属機関所属機関名 Department of Horticultural Science, National Chiayi University
	著者識別子 K002580 作成者名 Miyajima, Ikuo 宮島, 郁夫ミヤジマ, イクオ所属機関所属機関名 Institute of Tropical Agriculture, Kyushu University 九州大学熱帯農学研究センター
本文言語	英語
出版者	Faculty of Agriculture, Kyushu University
出版者	九州大学大学院農学研究院
発行日	2016-02-29
収録物名	九州大学大学院農学研究院紀要
巻	61
号	1
開始ページ	37
終了ページ	40
出版タイプ	Version of Record
アクセス権	open access
Crossref DOI	https://doi.org/10.5109/1564078

ファイル	ファイルタイプ	サイズ	閲覧回数	説明
p037	pdf	1.23 MB	724

PISSN	0023-6152
NCID	AA00697606
レコードID	1564078
査読有無	査読無
主題	anthocyanin
	copigmentation
	flavonol
	Rhododendron oldhamii
ISSN	0023-6152
NCID	AA00697606
注記	Rhododendron oldhamii Maxim. is an endemic evergreen azalea in Taiwan and recently planted in Japan. This species is distributed from 150 m to 2,700 m above sea level. Red–flowered species with petal color ranging from orange to red normally contain only cyanidin series anthocyanins and no flavonols in their petals. However, the color of blotches on the upper lobe of the petals or at the base of the funnel is slightly reddish–purple that suggested the presence of flavonols. In R. oldhamii, cyanidin 3–arabinoside and cyanidin 3–galactoside are two major anthocyanins in both upper and lower petals but flavonols were only detected in the upper petals, specifically in the blotches areas, by HPLC analysis. Two major flavonols were identified as quercetin glycosides. The pH value of reddish–purple blotches was slightly higher than that of surrounding areas and lower petals. These results indicated that co–pigmentation between cyaniding glycosides and quercetin glycosides pigments associated with higher pH condition, causing reddish–purple color for blotches in R. oldhamii flowers.
登録日	2016.03.09
更新日	2022.11.11