Relationship between the flavonoid composition and flower colour variation in Victoria
Relationship between the flavonoid composition and flower colour variation in Victoria
复制标题
维多利亚黄酮类成分与花色变化的关系
DOI：
10.1111/plb.12835
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发表时间：
2018
期刊：
影响因子：
3.9
通讯作者：
Liangsheng Wang
中科院分区：
文献类型：
--
作者：
Qian Wu;Pengcheng Li;Huijin Zhang;Chengyong Feng;Shanshan Li;D;an Yin;Jie Tian;Wenzhong Xu;Liangsheng Wang
维多利亚（睡莲科）是一年生或多年生水生植物属，仅有两种：亚马逊维多利亚（V. amazonica（Poepp.）J. C. Sowerby和V. cruzianaA. D.珠这两个品种都有大的漂浮叶和可变的花色。这两个品种都是夜间开花的，在第一个开花的夜晚有白色花瓣，然后在第二个开花的日子变成粉红色或宝石红色。在本研究中，我们采用高效液相色谱-光电二极管阵列检测器对两种植物的花瓣中的黄酮类化合物进行了定量分析（HPLC-DAD）和超高效液相色谱-串联质谱法结果表明，在紫丁香花瓣中共检测到14种黄酮类化合物，其中花色苷4种，黄酮醇10种。这两个物种的类黄酮成分不同，导致内部和外部花瓣之间的颜色不同。随着花色素苷含量的增加，维多利亚花的颜色随时间而变化。本研究结果将有助于加深对颜色形成的化学机制的理解，并为维多利亚的选择性颜色育种奠定基础。
Victoria(Nymphaeaceae), an annual or perennial aquatic plant genus, contains only two species:V. amazonica(Poepp.) J. C. Sowerby andV. cruzianaA. D. Orb. Both species have large floating leaves and variable flower colour. BothVictoriaspecies are night bloomers, which have white petals on the first blooming night that then turn pink or ruby red on the second blooming day. The mechanism of the colour change ofVictoriapetals during anthesis is still unclear.In this study, flavonoids inVictoriapetals of both species were evaluated and quantified by high‐performance liquid chromatography with photodiode array detection (HPLC‐DAD) and by ultra‐performance liquid chromatography coupled with tandem mass spectrometry (UPLC‐MS/MS) for the first time.In total, 14 flavonoids were detected inVictoriapetals, including 4 anthocyanins and 10 flavonols. The flavonoid compositions differed across the two species, resulting in different colours between the inner and outer petals. With increased anthocyanin content across blooming days, the colour ofVictoriaflowers changed over time.The results of this study will improve understanding of the chemical mechanism of colour formation and lay the foundation for selective colour breeding inVictoria.