Flower colours and pigments in Disa hybrid (Orchidaceae) |
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Authors: | F Tatsuzawa K Ichihara K Shinoda K Miyoshi |
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Institution: | 1. Faculty of Agriculture, Iwate University, Iwate 020-8550, Japan;2. Faculty of Bioresource Sciences, Akita Pref. University, Akita 010-0195, Japan;3. National Agricultural Research Center for Hokkaido Region, Hokkaido 062-8555, Japan |
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Abstract: | Flower colours and the composition of pigments in the perianths of five cultivars of Disa orchids were analyzed. Carotenoids were major pigment components in the orange-red flowers of ‘Dawn Angel’. We identified two types of pigment composition in the red flowered cultivars: ‘San Francisco’ contained more carotenoids and less anthocyanins, while ‘Marlene’ contained more anthocyanins than carotenoids. The red-purple flowered cultivars, only contained slight amounts of carotenoids, and the red-purple colour was attributed to the relatively high density of a cyanidin-based anthocyanin. The importance of the characterization of pigments in the perianths of orchid has been discussed in both breeding for flower colour improvement and chemotaxonomy. |
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Keywords: | Anthocyanin Carotenoid Disa Flower colour Orchidaceae |
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