@article{oai:ir.kagoshima-u.ac.jp:00002062, author = {橋本, 文雄 and 福田, 祥子 and 前田, 寛子 and 田中, 見佳 and 清水, 圭一 and 樗木, 直也 and Chishaki, Naoya and 坂田, 祐介 and 石黒, 悦爾}, journal = {鹿兒島大學農學部學術報告=Bulletin of the Faculty of Agriculture, Kagoshima University}, month = {2016-10-27}, note = {The relationship between sepal hue and major sepal anthocyanins of cyanic Delphinium flowers, i.e., violdelphin (2) and cyanodelphin (3), is discussed. The mode of change in flower color in vivo was derived as a numerical equation relating two kinds of sepal pigments, from violdelphin [VD] (2) to cyanodelphin [CD] (3) for bluish flowers or from tulipanin [TP] (1) to [VD] (2) for purplish flowers, during anthesis, for changing flower hue from purple to blue or from pink to purple, respectively. The molar concentration of CD (3) relative to the molar concentration of VD (2), and of VD (2) relative to TP (1), in bluish and purplish sepals, respectively, had a strong regression with its hue angle (h) in a double reciprocal plot, which yielded a molar ratio constant (KH) and a maximal hue angle (Hmax). This study demonstrates for the first time a clear correlation between primary sepal pigments and flower color, specifically hue angle, and thus a primary determinant of coloration can be explained by the structural definition of the primary sepal anthocyanins for bluing and purpling in cyanic Delphinium flowers., デルフィニウムの新鮮がく片の主要アントシアニンであるビオルデルフィンとシアノデルフィンなどを開花中に定量し, 花色との関係を数理的に解析した。即ち, 青色花ではビオルデルフィンからシアノデルフィンへの変換と花色変化を, 紫色花ではチューリパニンからビオルデルフィンへの変換と花色変化を同時にモニターした。その結果, それぞれの色素量比の逆数と花色属性の一つである色相角(h) の逆数に非常に強い一次回帰の関係を見出し, その数式からモル比定数(KH) と最大色相角(Hmax) を得た。がく片の内生色素と花色, 特に色相角との関係を数理的に解析した初めての例であり, がく片の主要色素が青色と紫色の花色を決定する一次的要因であることを説明している。}, pages = {15--27}, title = {Determination of Flower Coloration in Delphinium spp. by Monitoring Sepal Anthocyanin in Vivo}, volume = {60}, year = {}, yomi = {チシャキ, ナオヤ} }