Identification of flavonoids and expression of flavonoid biosynthetic genes in two coloured tree peony flowers

Biochemical and Biophysical Research Communications
Daqiu ZhaoJun Tao

Abstract

Tree peony (Paeonia suffruticosa Andr.) has been named the "king of flowers" because of its elegant and gorgeous flower colour. Among these colours, the molecular mechanisms of white formation and how white turned to red in P. suffruticosa is little known. In this study, flower colour variables, flavonoid accumulation and expression of flavonoid biosynthetic genes of white ('Xueta') and red ('Caihui') P. suffruticosa were investigated. The results showed that the flower colours of both cultivars were gradually deepened with the development of flowers. Moreover, two anthoxanthin compositions apigenin 7-O-glucoside together with apigenin deoxyheso-hexoside were identified in 'Xueta' and 'Caihui', but one main anthocyanin composition peonidin 3,5-di-O-glucoside (Pn3G5G) was only found in 'Caihui'. Total contents of anthocyanins in 'Caihui' was increased during flower development, and the same trend was presented in anthoxanthins and flavonoids of these two cultivars, but the contents of these two category flavonoid in 'Caihui' were always higher than those in 'Xueta'. Furthermore, nine structural genes in flavonoid biosynthetic pathway were isolated including the full-length cDNAs of phenylalanine ammonialyase gene (PAL), chalcone...Continue Reading

References

Dec 20, 2003·Journal of Plant Research·Liang-Sheng WangYusuke Sakata
Jun 13, 2008·Nature Protocols·Thomas D Schmittgen, Kenneth J Livak
Jul 3, 2009·Journal of Pharmaceutical and Biomedical Analysis·Carlo Ignazio Giovanni TuberosoPaolo Cabras
Aug 29, 2009·Journal of Agricultural and Food Chemistry·Chonghui LiYuxuan Ge
Jan 8, 2010·International Journal of Molecular Sciences·Yoshikazu TanakaSteve Chandler
Aug 21, 2013·PloS One·Jiafu TanXianlong Zhang

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Citations

Feb 29, 2016·Plant Physiology and Biochemistry : PPB·Da-Qiu ZhaoJun Tao
Oct 16, 2015·Critical Reviews in Food Science and Nutrition·Baiyi LuRan Yin
Aug 18, 2017·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Qianqian ShiYanlong Zhang
Feb 4, 2021·Journal of Food Biochemistry·Ganesamoorthy JanarnyKamburawala Kankanamge Don Somathilaka Ranaweera

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