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. © 2009 Elsevier B.V. All rights reserved.
Tatsuzawa, F., Ichihara, K., Shinoda, K., & Miyoshi, K. (2010). Flower colours and pigments in Disa hybrid (Orchidaceae). South African Journal of Botany, 76(1), 49–53. https://doi.org/10.1016/j.sajb.2009.06.017