Insight into chemical mechanisms of sepal color development and variation in hydrangea
Autor: | Kumi Yoshida, Kin-ichi Oyama, Tadao Kondo |
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Jazyk: | angličtina |
Rok vydání: | 2021 |
Předmět: |
Hydrangea macrophylla
5-O-acylquinic acid General Physics and Astronomy Hydrangea Review Flowers Sepal anthocyanin chemistry.chemical_compound Botany Hue aluminum ion biology Pigmentation General Medicine biology.organism_classification sepal color chemistry Aluminum Ion Anthocyanin Petal vacuolar pH General Agricultural and Biological Sciences Change color |
Zdroj: | Proceedings of the Japan Academy. Series B, Physical and Biological Sciences |
ISSN: | 1349-2896 0386-2208 |
Popis: | Hydrangea (Hydrangea macrophylla) is a unique flower because it is composed of sepals rather than true petals that have the ability to change color. In the early 20th century, it was known that soil acidity and Al3+ content could intensify the blue hue of the sepals. In the mid-20th century, the anthocyanin component 3-O-glucosyldelphinidin (1) and the copigment components 5-O-caffeoylquinic, 5-O-p-coumaroylquinic, and 3-O-caffeoylquinic acids (2-4) were reported. Interestingly, all hydrangea colors from red to purple to blue are produced by the same organic components. We were interested in this phenomenon and the chemical mechanisms underlying hydrangea color variation. In this review, we summarize our recent studies on the chemical mechanisms underlying hydrangea sepal color development, including the structure of the blue complex, transporters involved in accumulation of aluminum ion (Al3+), and distribution of the blue complex and aluminum ions in living sepal tissue. |
Databáze: | OpenAIRE |
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