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Flower colours and pigments in Disa hybrid (Orchidaceae) Tatsuzawa, F Ichihara, K Shinoda, K Miyoshi, K Anthocyanin Carotenoid Disa Flower colour Orchidaceae 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. journal article Elsevier 2010-01-01 AM application/pdf South African Journal of Botany 1 76 49 53 0254-6299 https://iwate-u.repo.nii.ac.jp/record/9177/files/sajb-v76i1p49-53.pdf https://iwate-u.repo.nii.ac.jp/records/9177 10.1016/j.sajb.2009.06.017 Copyright © 2009 Elsevier B.V.