http://www.ahs.ac.cn/images/0513-353X/images/top-banner1.jpg|#|苹果
http://www.ahs.ac.cn/images/0513-353X/images/top-banner2.jpg|#|甘蓝
http://www.ahs.ac.cn/images/0513-353X/images/top-banner3.jpg|#|菊花
http://www.ahs.ac.cn/images/0513-353X/images/top-banner4.jpg|#|灵芝
http://www.ahs.ac.cn/images/0513-353X/images/top-banner5.jpg|#|桃
http://www.ahs.ac.cn/images/0513-353X/images/top-banner6.jpg|#|黄瓜
http://www.ahs.ac.cn/images/0513-353X/images/top-banner7.jpg|#|蝴蝶兰
http://www.ahs.ac.cn/images/0513-353X/images/top-banner8.jpg|#|樱桃
http://www.ahs.ac.cn/images/0513-353X/images/top-banner9.jpg|#|观赏荷花
http://www.ahs.ac.cn/images/0513-353X/images/top-banner10.jpg|#|菊花
http://www.ahs.ac.cn/images/0513-353X/images/top-banner11.jpg|#|月季
http://www.ahs.ac.cn/images/0513-353X/images/top-banner12.jpg|#|菊花

园艺学报 ›› 2018, Vol. 45 ›› Issue (3): 519-529.doi: 10.16420/j.issn.0513-353x.2017-0344

• 研究论文 • 上一篇    下一篇

菊花衰老过程中花色变红与色素成分变化分析

张杨青慧,王艺光,房伟民,管志勇,张 飞,陈发棣*   

  1. (南京农业大学园艺学院/农业部景观农业重点实验室,南京 210095)
  • 出版日期:2018-03-25 发布日期:2018-03-25

Changes of Colors and Pigment Compositions During the Senescence Process of Chrysanthemum morifolium

ZHANG Yangqinghui,WANG Yiguang,FANG Weimin,GUAN Zhiyong,ZHANG Fei,and CHEN Fadi*   

  1. (College of Horticulture,Nanjing Agricultural University/Key Laboratory of Landscape Agriculture,Ministry of Agriculture,Nanjing 210095,China)
  • Online:2018-03-25 Published:2018-03-25

摘要:

为了探究菊花在衰老进程中花色变红的机制,以317个菊花品种为材料,对其花色的变化进行田间调查,将其划分为7大色系,结果表明有202个品种在衰老过程中会发生变红现象。选择不同色系109个变红明显的品种,以英国皇家园艺学会比色卡和色差仪测量3个时期的花色表型,并对其中有代表性的5个品种‘白皇后’、‘蒙白’、‘南农玉扣’、‘南农绿冻’和‘伊比斯阳光’进行相关生理指标的测定。结果表明:在多数菊花的衰老过程中,花瓣表面明度L*值降低,红度a*值升高,颜色逐渐变红。5个品种花瓣中的类黄酮,尤其是花青素苷的含量呈现显著上升的趋势。此外,丙二醛含量也逐渐增加,而可溶性糖含量逐渐减少。综合各项指标,菊花花瓣衰老过程中花青素苷的积累是引起花瓣颜色变红的关键因子,推测是花青素代谢途径变化导致。

关键词: 菊花, 衰老, 变色, 花青素苷

Abstract:

The study aimed at exploring the mechanism of chrysanthemum floral coloration during the senescent process. 317 chrysanthemum cultivars including seven color groups from“Chinese chrysanthemum germplasm resources preservation center”in Nanjing Agricultural University were used as the test materials for field investigation. As a result,there were 202 varieties with color change. 109 varieties with obvious color change in different color groups during three flowering stages were selected for phenotype measuration using Royal Horticultural Society Color Chart and colorimeter. Furthermore,the determination of physiological parameters of five representative varieties‘White Queen’,‘Monalisa’,‘Nannong Yukou’of white group,‘Nannong Lüdong’of green group,and ‘Ibis-sunny’of yellow group were performed. It was showed that during the senescence of most chrysanthemum cultivars,the L* values of petal surface were decreased,the a* values were enhanced,e. g. the flower color gradually became more reddish than before. According to the determination of physiological parameters,the contents of flavonoids,especially anthocyanin contents in petals of five varieties showed a significant increase. In addition,the contents of MDA also gradually increased,while the contents of soluble sugar reduced. As a conclusion,the accumulation of anthocyanins probably affected by the changes of metabolic pathway is the key factor caused petals turning red during the senescence of chrysanthemum.

Key words: Chrysanthemum morifolium, senescence, color change, anthocynin

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