高濃度スクロース処理が蕾切りカーネーションの花色発現および花弁中の糖質とアントシアニン濃度に及ぼす影響(収穫後の貯蔵・流通)  [in Japanese] Effects of High-Sucrose Concentration Treatments on Petal Color Pigmentation and Concentrations of Sugars and Anthocyanins in Petals of Bud Cut Carnations(Postharbvest Physiology & Technology)  [in Japanese]

Abstract

スクロース濃度O%から15%の処理液が蕾切りカーネーションの花弁色調に及ぼす影響を調査するとともに,開花時に花弁中の糖質および色素の濃度を定量した.処理液のスクロース濃度が高いほど,明度が低く,彩度が高く,色相角度が低くなる傾向が認められた.すなわち,スクロース濃度を高くすることにより,花弁の淡桃色が濃くあざやかになった.開花時の花弁では,処理液のスクロース濃度を高くすると,フルクトースとグルコースの濃度が著しく増加した.スクロース濃度はわずかに増加し,ピニトールおよびミオイノシトールの濃度にはほとんど変化がなかった.開花時の花弁には色素として,ペラルゴニジン3-グルコシド(Pg3-G)とペラルゴニジン3-(6"-マリルグルコシド)(Pg3-MG)の2種類のアントシアニンが存在し,特にPg3-MG濃度が高かった.処理液のスクロース濃度を高くするほど,花弁中のアントシアニン濃度が増加し,特にPg3-MGで顕著であった.以上の結果から,高濃度のスクロース処理は花弁に多量の糖質を供給し,アントシアニンの生合成が促進されることによりPg3-MGやPg3-G濃度が上昇し,その結果花色発現が良好になると考えられた.

Effects of sucrose concentrations in solution on petal color pigmentation, concentrations of sugars and anthocyanins in the petals of bud cut carnations (Dianthus caryophyllus L., 'Nora') were investigated. Bud cut carnation flowers were treated with sucrose solutions of up to 15% at 23C. Sucrose in high concentrations (2-15%) improved petal color pigmentation. In the petals of fully opened carnations, the concentrations of fructose and glucose increased markedly after treatment with sucrose at increasing concentrations. The concentration of sucrose increased slightly, although that of pinitol and myo-inositol remained almost constant. Two types of anthocyanins, pelargonidin 3-(6"-malylglucoside) (Pg3-MG) and pelargonidin 3-glucoside (Pg3-G), were found as pigments in the petals, of which Pg3-MG was the major pigment. The concentrations of these pigments increased markedly with sucrose concentrations. The results indicated that the application of sucrose at high concentration resulted in high accumulation of soluble sugars in the petals, and this accelerated the synthesis of these two anthocyanins and improved the petal color pigmentation.

Journal

Horticultural research (Japan)   [List of Volumes]

Horticultural research (Japan) 7(2), 277-281, 2008-04-15  [Table of Contents]

The Japanese Society for Horticultural Science

References:  29

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Codes

  • NII Article ID (NAID) :
    110006649718
  • NII NACSIS-CAT ID (NCID) :
    AA11608561
  • Text Lang :
    JPN
  • Article Type :
    ART
  • ISSN :
    13472658
  • NDL Article ID :
    9476335
  • NDL Source Classification :
    ZR7(科学技術--農林水産--農産)
  • NDL Call No. :
    Z74-C757
  • Databases :
    CJP  NDL  NII-ELS