Floral pigments from the blue flowers of Nemophila menziesii 'Insignis blue' and the purple flower of its variants

Fumi Tatsuzawa, Kenjiro Toki, Yuko Ohtani, Kazuhisa Kato, Norio Saito, Toshio Honda, Masahiro Mii

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Two anthocyanins (pigments 1 and 2) were detected from the blue flowers of Nemophila menziesii 'Insignis blue' and the purple flowers of its variants as the main floral anthocyanins. These two anthocyanins were isolated from the blue flowers and elucidated to be petunidin 3-O-[6-O-(cis-p-coumaroyl)-β-glucopyranoside]-5-O-[6-O-(malonyl)-β-glucopyranoside] (1) and petunidin 3-O-[6-O-(trans-p-coumaroyl)-β-glucopyranoside]-5-O-[6-O-(malonyl)-β-glucopyranoside] (2), respectively, by chemical and spectroscopic means, and pigment 1 was confirmed as a new anthocyanin in plants. Two flavonol glycosides (pigments 3 and 5) and two flavone glycosides (pigments 4 and 6) were also isolated from the blue flowers, and were identified to be kaempferol 3-(6-rhamnosyl)-glucoside-7-glucoside (3), apigenin 7, 4′-di-glucoside (4), kaempferol 3-(2, 6-di-rhamnosyl)-glucoside (5), and apigenin 7-glucoside-4′-(6-malonyl)-glucoside (6) as major flavonoids. Among these four flavonoids, however, pigments 4 and 6 (flavones) were not detected in the purple flowers. These results might be attributed to color production in blue and purple flowers.

Original languageEnglish
Pages (from-to)259-266
Number of pages8
JournalJournal of the Japanese Society for Horticultural Science
Volume83
Issue number3
DOIs
Publication statusPublished - 2014 Jul 31
Externally publishedYes

Keywords

  • Acylated petunidin glycoside
  • Boraginaceae
  • Nemophila menziesii
  • Purple and blue flower color

ASJC Scopus subject areas

  • Horticulture

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