Flavone C-Glucosides Responsible for Yellow Pigmentation Induced by Low Temperature in Bracts of Zantedeschia aethiopica

Author:

Nakayama Masayoshi1,Koshioka Masaji12,Kondo Tadao3,Imizu Kiyotoshi45

Affiliation:

1. Institute of Floricultural Science, National Agriculture and Food Research Organization, 2-1 Fujimoto, Tsukuba, Ibaraki 305-8519, Japan

2. Department of Plant Science and Resources, College of Bioresource Sciences, Nihon University, Fujisawa, Kanagawa, Japan

3. Graduate School of Information Science, Nagoya University, A4-2 Furo-cho, Chigusa-ku, Nagoya, Aichi 464-8601, Japan

4. Toyama Agricultural Center, 3-101 Tsukioka, Toyama 939-8132, Japan

5. Toyama City Office, 7-38 Shin Sakura-cho, Toyama, Toyama 930-8510, Japan

Abstract

We aimed to identify the main compounds responsible for low temperature-induced yellow pigmentation of the bracts of Zantedeschia aethiopica ‘Wedding March’. On the basis of the area ratios estimated from absorbance at 400 nm in HPLC analyses, we identified two flavonoids, isoorientin and swertiajaponin, as such compounds. We also identified two additional flavonoids, isovitexin and swertisin, which do not contribute considerably to the yellow pigmentation. Flavonoids of Zantedeschia bracts seem to belong to the class of flavone C-glycosides.

Publisher

SAGE Publications

Subject

Complementary and alternative medicine,Plant Science,Drug Discovery,Pharmacology,General Medicine

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